The proper pipe size in inches to maintain the 3 ft'/s flow rate is 7.3
Does pipe size affect flow rate?The cross sectional area of the pipe has an inverse relationship with flow velocity at any given flow rate. Higher flow rates result from smaller pipes; slower speeds result from larger pipes.
According to the continuity equation, we can increase the volume flow rate, or the velocity of the fluid passing through the pipe, by reducing the pipe's diameter. The fluid velocity is unaffected by the pipe's length, whether it is longer or shorter.
Larger pipes improve the water flow through the line, but they won't boost your water pressure if the water flow isn't sufficient. Although municipal water systems offer tremendous pressure, a larger line won't necessarily be beneficial.
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an open-delta three-phase transformer system has one transformer center-tapped to provide a neutral for single-phase voltages. if the voltage from line to center tap is 277 v, what is the high-leg voltage? if a single-phase load is connected across the two line conductors and neutral of the transformer above and one line has a current of 80 a and the other line has a current of 68 a, how much current is flowing in the neutral conductor?
480 V is the high-leg voltage. 12 A of current is passing through the neutral conductor.
What's current ?
In a full electrical circuit, current refers to the speed at which electrons move past a certain point. Current = flow, at its most fundamental level. The international unit for measuring current is an ampere (AM-pir), sometimes known as an amp. It describes how many electrons (sometimes referred to as "electrical charge") travel past a certain point within a circuit over a specified period of time. In a circuit, a current of 1 ampere corresponds to the movement of 1 coulomb of electrons, or 6.24 billions billion (6.24 x 1018) electrons, through a single location in a second.
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technician a says that the primary difference between deep-cycle batteries and sli is the thickness of the plates. technician b says that deeply discharging sli batteries dramatically shortens their service life. who is correct?
Both technician a and technician b are correct that SLI battery' service life is significantly shortened by deeply discharging them, and that the thickness of the plates is the main difference between both batteries.
A lead-acid storage and rechargeable battery known as an SLI battery is primarily utilized in internal combustion engines for vehicles and other internal combustion powered devices. Simply put, SLI stands for starting, lighting, and ignition. It is intended to start, run, and maintain power supply. SLI batteries use thinner lead dioxide-filled plates instead of the thicker ones used in deep cycle batteries. As opposed to the higher current produced by an SLI battery, deep cycle batteries deliver a steady, lower current. Deep cycle batteries are made for repeated discharge and recharge in applications like RVs, golf carts, floor scrubbers, and electric vehicles. Generally speaking, deep cycle batteries shouldn't be discharged below 80% depth of discharge.
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.what is the generator for this design? b. what is the resolution of this design? c. estimate the factor effects. which effects are large? d. does a residual analysis indicate any problems with the underlying assumptions? e. draw conclusions about this filling process
The response variable was the weight of the package's standard deviation. The plan and collected data are as follows.
a)the generator for this design is E=-ABCD
b)the resolution of this design is I=-ABCDE Therefor the resolution of the design is V.
c)estimate the factor effects there is 3 larger effcts namely E=-0.4700,BE=-0.4050,DE=-0.3150
d)Construct a linear regrassion model.The constant is estimated by the grand average and the regression coefficent are estimated by one-half the corresponding effect estimates.
If the underlying assumptions have any issues, the residual analysis will show them.
Y=1.22625+0.04375x₂-0.01875x₄+0.2350x₅-0.08125x₂x₄-0.1575x₄x₅
e)The standard deveation of package weight is affected the most by the dealy between mixing and packing,factor E.Also, its intreaction with the temperature factor B,BE and with the batch weight factor D,DE are important.
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______________________ refers to a programming model used within Hadoop that performs the two major steps for which it is named: the map step and the reduce step.
Map Reduce refers to a programming model used within Hadoop that performs the two major steps for which it is named: the map step and the reduce step.
What is meant by MapReduce?A parallel, distributed algorithm called MapReduce is a programming model with an accompanying implementation for handling and producing large amounts of data on a cluster. A map method, which performs filtering and sorting, and a reduce method, which does a summary operation, make up a map reduction programme.MapReduce was created primarily to address the need for an easy method of managing computationally demanding tasks in a parallelized, scalable, and fault-tolerant manner across large clusters of machines.MapReduce is incredibly effective and useful for a wide range of issues, however it is not the solution to all issues. There will be a significant performance hit if the Reduce step generates too much data because the index created in the Map step is only one dimension.To learn more about MapReduce refer :
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14. calculate the stopping distance if landing with a 10 knot headwind on a runway at 7000 ft. msl (assume icao standard conditions).
The stopping distance is 4500 m/s
How to calculate stopping distance ?The distance travelled between the moment the body decides to stop a moving vehicle and the moment the vehicle comes to a complete stop is known as the stopping distance. The stopping distance, indicated by the letter d, is dependent on a number of variables, including as the road's surface and the driver's reflexes.
You must maintain a sufficient distance from the vehicle in front of you so that, if necessary, you can safely stop to avoid colliding with the vehicle.
Given ,
Initial velocity = 7000
That is half of intial velocity = 450
Stopping distance = 450*10
= 4500 m/s
Therefore the stopping distance is 4500 m/s
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show that complex fourier series coefficients can be expressed as for each of the followig two periodic signals write the fourier series
Apparently, some people claim that every signal may be described as a Fourier series, notably in electrical engineering and musical signal processing.
This prompted me to consider the mathematical justification for such an argument.
However, even after reading through various materials on the Fourier series (which I have little background in but understand the notion of), I was unable to locate a mathematical justification for the claim that every function can be represented by a Fourier series. The need for the function to be periodic was alluded to.
Most functions cannot be expressed as Fourier series, as may be seen by a simple counting argument. A countable family of Fourier coefficients serves as the basis for a Fourier series, and as a result, the set of such series has cardinality c0, as opposed to the set of real valued functions defined on some interval, which has cardinality cc.
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Which of the following are fundamental intuitions behind collaborative filtering? A) Similar users will rate the items similarly B) Similar users will not rate the items similarly C) Similar items will be rated similarly Answer choices Select only one option Only A and B
Only B and C Only A and C Only A
The statement that are fundamental intuitions behind collaborative filtering is Only A. The fundamental intuition behind collaborative filtering are similar users will rate the items similarly.
To point some of the limitations of content-based filtering, collaborative filtering uses similarities between users and items simultaneously to provide recommendations. The example of collaborative filtering is collaborative filtering give the recommendation system as preferences in television programming could analyze about which television show a user should like given a partial list of that user's tastes (likes or dislikes). There are two main kind of Collaborative Filtering:
User-based, is used to measure the similarity between target users and other users. Item-based, is used to measure the similarity between the goods that target users rate or interact with and other items.Learn more about the collaborative filtering here, https://brainly.com/question/14747907
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technician a says that diesel engines supply only enough air to completely burn all the fuel in the combustion chamber. technician b says that diesel engines supply excess air to the combustion chamber to completely burn all the fuel in the combustion chamber. who is correct?
Engineers may create diesel engines with higher compression ratios than gasoline engines because diesel has a higher compression resistance and is denser than light distillate fuels.
The thermal efficiency of an engine increases with increasing compression ratio. Shaker, circulation, and spray jet systems are three ways that engine oil is utilized to assist in cooling pistons. the diesel engine. a fuel-burning engine that runs on diesel. Fuel oil is directly injected into the cylinders of a diesel engine. The air itself is hot enough to ignite the diesel fuel without a spark due to the extreme compression. Cycle with four strokes.
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5/90 determine the reactions at a for the cantilever beam subjected to the distributed and concentrated loads.
Az = 0, Ay = 8 kN, and MA = 21 kN m CCW are the reactions at a for the cantilever beam subjected to the distributed and concentrated loads.
What happens when a cantilever beam?The bending moment and moment reaction are equivalent at the cantilever beam's wall. The bending moment is 0 at the free end. The associated bending moment reaches its highest value at the point where the shear force crosses the zero axis.
What is the cantilever beam formula?And Kef f=3EI/L3x is the effective spring constant for a point force applied to the cantilever's end. The displacement at the end of the beam is w(x=Lx)=qL48EI, and the restoring force, Keffw, opposes the applied force.
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you assigned the assistant network administrator to replace a defective patch cable that connected port 1 on your patch panel to one of your network switches. you noticed that it took him an unusually long time to complete this task. once done, users almost immediately began to report that the network had gone down.
Set up the Windows 2000 workstations' VLAN membership so that they are on their own VLAN.
As the gateway to a wide area network (WAN) or the Internet, the core switch is also regarded as a backbone component that is essential to the smooth operation of a network. We can use it to connect to servers, our Internet service provider (ISP), via a router, and to aggregate all switches. When a client submits a request, a load balancer receives it and distributes it to various servers. Distributing client requests evenly among several servers is one objective of load balancing, which also aims to boost performance.
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assume a natural convection heat transfer on a vertical flat plate surrounded by a fluid. where will be the fully developed turbulent layer of fluid established, if the plate is hotter than the fluid?
A vertical flat plate with a fluid-enclosed natural convection heat transfer The fully developed turbulent layer of fluid will be established at the top of the plate if the plate is hotter than the fluid.
Thermal engineering's field of study known as "heat transfer" deals with the production, use, conversion, and exchange of thermal energy across physical systems. The classification of heat transmission into different methods includes thermal conduction, thermal convection, thermal radiation, and energy transfer through phase changes. When you hold a hot cup of coffee, heat is transferred into your hands by conduction. Heat is transferred by convection while the barista "steams" cold milk to produce hot chocolate. Microwave-assisted rewarming of a cold cup of coffee. Radiation, convection, and conduction are the three methods through which heat may be moved. The direct transmission of energy from one molecule to another is known as conduction. In many fields, including automotive engineering and the thermal management of electronic devices and systems, heat transfer techniques are applied.
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A hollowed long bone is under axial loading (uniform) of 2000 N. The marrow cavity is assumed uniform of 15 mm in diameter (figure). The outer diameters are changed from 20 mm to 30 mm. Assuming E=18GPa, and v=0.30, find σ xx ,ε xx, at x=0,x=L/2, and x=L. Find the total deformation, δ(x).L=500 mm. The implant and the bone are connected with same δ. (40 pts)
Based on their forms, the 206 bones that make up the adult skeleton are separated into five groups. Each bone's category shape has a certain function due to the relationship between its shapes and functions.
An object with a long bone has a cylindrical shape and is longer than it is wide. But keep in mind that the phrase refers to a bone's form, not its size.
A short bone is one that is roughly equal in length, width, and thickness and has a cube-like shape. The carpals in the wrists and the tarsals in the ankles are the only short bones in the human skeleton.
Although a flat bone is often thin, it is also sometimes curved, so the phrase "flat bone" is somewhat misleading.
A bone is considered irregular if it lacks an obviously identifiable shape and so does not fall under another category.
A sesamoid bone is a tiny, round bone that resembles a sesame seed, as the name implies. These bones develop in tendons, the tissue sheaths that connect bones to muscles, where a lot of joint pressure is produced.
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Some analysts believe that the exclusion of some traditional partners from the "democratic camp" by the United States will deepen the gap between the two sides; the invitation of some countries or regions suspected of "democratic retrogression" will affect the "credibility" of the summit.
The exclusion of some traditional partners from the "democratic camp" by the United States will undoubtedly deepen the gap between the two sides.
About summit :
This move by the US is seen as a sign of its dissatisfaction with the policies and behavior of these countries. In addition, the invitation of some countries or regions suspected of "democratic retrogression" may lead to further erosion of the credibility of the summit in the eyes of the invited countries, as well as the international community. At the same time, it is worth noting that the United States must consider the consequences of such actions and the possible damage to its international image. If the US is seen as selectively choosing partners, it may undermine its overall influence in the world.
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technician a says that liner protrusion can be measured with a flat bar and feeler blades. technician b says a dial indicator mounted on a sled should be used. who is correct?
You must use cylinder liner shims or a bigger flange height cylinder liner to increase the protrusion height if the new cylinder liner falls short of the engine manufacturer's specifications.
One of the most frequent reasons for low oil pressure is when the oil level falls below the minimum dipstick line. Even if you just had an oil change, this could occur at any time. Engines burn oil more fast with time. This is brought on by the deterioration of piston rings, leaking seals, etc. Engine temperature, which ultimately determines the temperature that the oil reaches, is the most frequent source of excessive oil pressure. Oil pressure increases might also be a result of broken engine parts.
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The reading on the 0 to 25 mm micrometer provided is
A. 15.20
B. 15.70
C. 15.45
D. 0.1520
Based on the image attached, the reading of micrometer is= 15.20.
What do the numbers on a micrometer represent?You will see a line of numbers running down the barrel of your micrometer, starting with the barrel scale. On the barrel scale, each number corresponds to 0.100. Looking at the barrel, 1 equals 0.100, 2 equals 0.200, 3 equals 300, and so on. The distance between each tick mark and the larger numbers on the barrel is 0.025, or 25 thousandths.
Note that micrometer is one that is also referred to as a micrometer screw gauge—is a tool with a calibrated screw that is frequently used for precise measurement of components in mechanical engineering, and others.
Looking at the image, you will see the stop ends at 15 and and 20 so adding them together will be option A. 15.20.
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How many floor joists are required for a building 28 feet wide by 32 feet long if the joists are spaced 16 o.c. and there is a girder in the center?
22 I-beams, 32 feet long and 5 end-plate boards 12 feet long.
How can I figure out how many floor joists ?The standard distance between deck joists is either 12 inches or 16 inches on center. (On-center refers to the distance between the centers of two joists rather than the distance between their edges.)
Subtract the width of your floor joist from the length of your floor: 32 -28
the total of the floor joists' on-center spacing divided by that difference 16"/4 = 4
To this value, add 1, then round the result to the next whole number:
22 I-beams, 32 feet long and 5 end-plate boards (e.g., 2x12s) 12 feet long.
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glycerin at 380 c flows through a horizontal 9 mm diameter pipe with a pressure drop of 120 kpa/m. find the discharge and the reynolds number.
With a pressure drop of 120 kpa/m, glycerin at 380 c flows through a horizontal pipe with a 9 mm diameter. The Reynolds number is 3.807 after the discharge.
pressure drop=32μVL/D²
120*10³=32*0.95*V*1/(9*10⁻³)²
Velocity V=0.329 m/sec
discharge =AV
=π(9*10⁻³)²/4*0.319
pressure drop=2.02*10⁻⁵ m³
then,
Reynolds number=VD/γ
=δVD/μ
1.26*10³*0.319*9*10⁻³/0.95
=3.807
By measuring the proportion of inertial and viscous forces, the Reynolds number aids in the prediction of flow patterns in various fluid flow scenarios. Laminar flow typically predominates in low Reynolds numbers flows while turbulent flow predominates in high Reynolds numbers flows.
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Water is to be pumped from a lake to a ranger station on the side of a mountain (see figure). The length of pipe immersed in the lake is negligible compared to the length from the lake surface to the discharge point. The flow rate is to be 95 gal/min, and the flow channel is a standard 1-inch. Schedule 40 steel pipe (ID= 1.049 inch). A pump capable of delivering 8 hp(-Ws) is available. The friction loss F (ft lb/lbm) equals 0.041L, where L(ft) is the length of the pipe. (a) Calculate the maximum elevation, z, of the ranger station above the lake if the pipe rises at an angle of 30° (b) Suppose the pipe inlet is immersed to a significantly greater depth below the surface of the lake, but it discharges at the elevation calculated in Part (a). The pressure at the pipe inlet would be greater than it was at the original immersion depth, which means that ΔP from inlet to outlet would be greater, which in turn suggests that a smaller pump would be sufficient to move the water to the same elevation. In fact, however, a larger pump would be needed. Explain (i) why the pressure at the inlet would be greater than in Part (a), and (ii) why a larger pump would be needed. 30°
a) If the pipe rises at a 30° angle, the ranger station's maximum elevation, z, above the lake is 290 feet.
b) As we descend, the lake's pressure always rises. In comparison to point 2, point 3 has higher pressure. Because the rise in pressure is offset by the fall in datum, pump power remains constant for the same height, z=290 feet.
What is pressure?In the physical sciences, pressure is referred to as the stress at a point within a confined fluid or the perpendicular force per unit area. The force divided by the area over which it is exerted, or half a pound per square inch, determines the pressure that a 42-pound box with an area of 84 square inches at the bottom places on a floor.
Atmospheric pressure, which is roughly 15 pounds per square inch at sea level, is the amount of weight that the atmosphere exerts on each unit area of the Earth's surface. In SI units, pressure is expressed in pascals, where one pascal is equal to one newton per square meter. The atmosphere has a pressure of almost 100,000 pascals.
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to determine the maximum likelihood estimation, computerized adaptive testing (cat) software weights all of the following except .
To determine the maximum likelihood estimation, computerized adaptive testing (CAT) software weights all of the following except ability.
What is CAT testing software?A type of computer-based test called computerized adaptive testing (CAT) adjusts to the examinee's degree of proficiency. It has also been referred to as customized testing for this reason.In other words, it's a type of computer-administered exam where the choice of the next item or group of things is based on how accurately the test-taker answered the most recent series of questions.Based on what is known about the examinee from prior questions, CAT picks questions in a sequential manner to maximize test accuracy. From the perspective of the test taker, the exam's complexity appears to be tailored to their level of competence.Learn more about CAT testing software refer to :
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in a p -n junction, the n-doping nd is doubled. how do the following change if everything else remains unchanged? indicate only increase or decrease. (a) junction capacitance (b) built-in potential (c) breakdown voltage (d) ohmic losses
In a p-n junction, option c is accurate because the is double. the values below change if everything else stays the same and they only indicate a rise or fall in breakdown voltage.
Breakdown voltage It is the voltage at which current in a forward biased PN junction begins to flow or increases. When reverse voltage is present, junctions break down and reverse current increases quickly. The depletion layer's width narrows. The depletion layer becomes wider. A diode's breakdown voltage specifies the highest reverse voltage that can be used without exponentially increasing the leakage current in the diode. A diode won't necessarily be destroyed if its breakdown voltage is exceeded, but it will be if its current capacity is. To create an ionization path through the dielectric, the open gap voltage must increase before current can flow.
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what is the appropriate superelevation rate for a curve with a 1,200-ft radius on highway with a design speed of 60 mi/h?
A curve should superelevate at a rate of 6%.A 10% maximum superelevation has been advised for highways with hills that are not snow-bound.
How much super elevation can you get in total?Taking into account this mixed traffic, the IRC set a 7.0% or 0.07 maximum limit of superelevation on plain and rolling terrains and in snow-covered areas. A 10% maximum superelevation has been advised for highways with hills that are not snow-bound.By dividing the distance between the normal crown and full super by the transition length, one may calculate the rate of change in superelevation. 1,2000 - 60 = 11,940 Similar to the transition at the curve's beginning end, the rate of change is constant.To learn more about Superelevation refer to:
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___________ is the party that facilitates the movement of cargo to the international destination on behalf of shippers and processes the documentation or performance activities related to those shipments.
Freight forwarder
Freight forwarder is the party that facilitates the movement of cargo to the international destination on behalf of shippers and processes the documentation or performance activities related to those shipments.
A company that specializes in organizing goods on behalf of shippers is known as a freight forwarder.
Freight forwarders typically offer a range of supply chain services, such as: Ocean or air freight transport. from the point of origin to the point of destination by land. A freight forwarder plans shipments for businesses or individuals. The break-bulk and distribution of cargoes are handled by freight forwarders, who also assemble and combine goods. Freight forwarders, as opposed to brokers, take charge of the transportation and sometimes even move the freight themselves. The main distinction is that a freight forwarder will assume responsibility for transportation both to and from ports.
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In the diagram shown, which process is surface runoff?
In the diagram shown, the process that is surface runoff is the surface labelled D.
What is surface runoff?Surface runoff is the flow of water happening on the ground surface when much rainwater, storm water, meltwater, or other sources, will no more sufficiently fast infiltrate in the soil. This is possible when the soil is exhausted by water to its full capacity, and the rain arrives more quickly than the soil can absorb it.
Therefore, the correct answer is as given above. That is, the surface tagged D depict the flow of water on the ground surface which is otherwise known as surface runoff.
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A large-particle composite consisting of tungsten particles within a copper matrix is to be prepared. If the volume fractions of tungsten and copper are 0.18 and 0.82, respectively, estimate the upper limit for the specific stiffness of this composite given the data that follow.
Specific Gravity Modulus of Elasticity (GPa)
Copper 8.9 110
Tungsten 19.3 407
Using the information provided, 19.65 GPa is the maximum specific stiffness of the composite that can be calculated.
We provide;
Copper has a specific gravity of _cu = 8.9.
Tungsten has a specific gravity of 19.3 (_tu).
Copper's elasticity modulus is 110 GPa.
E tu = 407 GPa is the tungsten's elasticity modulus.
Tungsten volume fraction: V tu = 0.7
Copper volume percent, V cu = 0.3
1) The maximum rigidity permitted;
Let's use the formula to determine the modulus of elasticity's maximum value;
E u is equal to (E cu V cu) plus (E tu V tu).
E u = (110 × 0.3) + (407 × 0.7)
E u = 317.9 GPa
The formula yields an upper bound for the specific gravity;
(_cu V cu) + (_tu V tu) = _u
ρ u = (8.9 × 0.3) + (19.3 × 0.7)
ρ u = 16.18
E/u = Specific stiffness
Stiffness specific = 317.9/16.18
Specific stiffness upper limit = 19.65GPa
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6.in a typical structural steel floor or roofing framing, there are three types of elements, called primary, secondary and tertiary elements. explain what these are and what materials they consist of.
Steel is the emaerial used because it is stated that the floor is made of steel. Any material, such as wood, steel, or composite, may be used for roof framing.
Primary elements are the main member in floor system which transfer the load coming on to the element from secondary beam elemnts.The main beams will be joined to the building's columns. The two most common shapes are H and W sections. Secondary elements, which span between principal beams, often accept the slab's weight before passing it on to the primary elemnts. The primary components are joined to the secondary beams for load transfer. Secondary elements are seldom ever employed. If employed, they function as a load transfer system from the slab to the secondary element or as a means of strengthening the floor system to lessen deflection. The top chord and bottom tie members are the main components of roof framing. The weight is transferred from the purlins to the columns or wall via these elements. often have a double-angle or channel section. Tie and the chord member between the top are secondary components.Ther are subjected to compression and tension and transfer forces to the primary elements.
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technician a says that diesel engine oil operates at higher temperatures than spark-ignition engine oil because it cools pistons. technician b says that diesel engine oil operates at close to coolant temperature. who is correct?
Technician a is correct because he says that due to the cooling effect on pistons, diesel engine oil operates at higher temperatures than spark-ignition engine oil.
The diesel engine modeled after Rudolf Diesel is an example of a compression-ignition internal combustion engine, which ignites fuel by heating the air in the cylinder as a result of mechanical compression. Theoretically, diesel engines operate by compressing air to a high pressure and temperature, then injecting a small amount of fuel into the heated compressed air in cylinder. Due to the high temperature, the small amount of fuel that was injected and vigorously atomized evaporates.Diesel engines come in two different classes: two-stroke and four-stroke. Some bigger diesel engines operate on the two-stroke cycle, while most diesel engines utilize the four-stroke cycle. They generally have four or six in-line, direct-injection cylinders.
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Consider a process carried out on 1.00 mol of a monatomic ideal gas by the following two different pathways. The first pathwayis A (3.00 atm, 20.0 L) to C (1.00 atm, 20.0 L) to D (1.00 atm, 50.0 L); and the second pathway is A (3.00 atm, 20.0 L) to B (3.00atm, 50.0 L) to D (1.00 atm, 50.0 L). In each case, the gas is taken from state A to state D.33. Calculate wAB.a. 0b. 90 L•atmc. –90 L•atmd. –30 L•atme. 30 L•atm34. Calculate wAC.a. 0b. 30 L•atmc. –30 L•atmd. 90 L•atme. –90 L•atm35. Calculate q AB.a. 135 L•atmb. –135 L•atmc. 225 L•atmd. –225 L•atme. none of these36. Calculate q AC.a. 60 L•atmb. 100 L•atmc. –60 L•atmd. –100 L•atme. none of these
The calculated answer is 90 L atm, a pure gas made up only of atoms. The noble gases argon, krypton, and xenon are some examples.
Consider a monatomic perfect gas with m-mean particles that don't interact and a resting mass center. An ion with only one atom is referred to as a monatomic ion or simple ion. A polyatomic ion is one that has more than one atom, even if they are all from the same element.
From the information provided:
The first route:
A (1 atm, 20 L), C (3 atm), and D (1 atm, 50 L)
The second route:
A (3 atm, 50 L), B (3 atm, 20 L), and D ( 1 atm, 50 L)
Because one mole equals one mole,
to locate wAB;
The conversion is depicted as A B occurring under constant pressure.
∴
Pressure x Volume Change = wAB
V2 - V1 = wAB
atm = wAB ( 50 L - 20 L)
atm = wAB ( 30 L)
wAB=90 L.atm
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which indoor pollutant is commonly used in building materials, carpet backing, furniture, foam insulation, plywood, and particle board? a. radon b. asbestos c. formaldehyde d. polyethylene terephthalate (pet) e. polycarbonate plastic
The indoor pollutant formaldehyde is frequently found in furniture, foam insulation, carpet backing, plywood, and particle board.
Some household products, including carpet, particleboard, draperies, wallpaper, furniture fabrics, glues and adhesives, tobacco smoke, some personal care items, and some foam insulation, release formaldehyde. The symptoms of carbon monoxide exposure are brought on by methylene chloride, which the body converts to carbon monoxide. Particle board, plywood, foam insulation, carpet backing, and furniture are all frequently found in building supplies. The burning of leaded fuel and metal processing are the two main sources. Once ingested, lead can build up in the body and have a variety of negative effects. Adults who are exposed to high levels of lead may experience problems with their nervous, cardiovascular, or reproductive systems. Your brand-new carpet or cabinet may be poisoning you subtly with benzene, ethylene glycol, or formaldehyde.
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A long, V-shaped part is heat treated by suspending it in a tubular furnace with a diameter of 2 m and a wall temperature of 925 K. The "vee is 1-m long on a side and has an angle of 60 Furnace, T Part, Tp If the wall of the furnace and the surfaces of the part may be approximated as blackbodies and the part is at an initial temperature of 300 K, what is the net rate of radiation heat transfer per unit length to the part, in W/m?
The part's net radiation heat transfer rate, expressed as a rate per unit length, isQ=123.4Kw/m
Given
temperature of 925 K
diameter of 2 m
we know that F11+f12+f13=1
F11+F13=1
so
F11=F13=0.5
A1F13=A3F31
=2L*1*0.5
2*1*1*0.5
A1F13=1
Similary F23 =1
A3F32=2
Therefore
A1F13=1
A3F32=2
T3=925k
T1=T2=300k
Q=1*σ*(925⁴-300⁴)+2*σ*(925⁴-300⁴)
=3*σ*(925⁴-300⁴)
=3*5.67*10⁻⁸*(925⁴-300⁴)
Therefore net radiation heat transfer rate
Q=123.4Kw/m
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What is the period of the clock in the code snippet?(Please provide the answer in 'ns') 'timescale 5 ns / 1 ps reg clk; initial clk = 0; always #10 clk = clk; A
It is to be noted that from the code snippet, since the clock changes every 10-time units, has a half cycle of 10 seconds, therefore the period is 20 units.
What is the explanation of the above result?A clock with a half cycle of 10 seconds and a period of 20-time units would have a half cycle of 10 seconds and a period of 20-time units. A clock that changes every 10 seconds, for example, would have a half cycle of 10 seconds.
As a result, the accuracy is 1ns and the time unit is 10ns. To retrieve the actual simulation time, multiply the time unit by the delay set with #, which is then rounded down based on accuracy. The first delay statement returns 10ns, whereas the second delay statement returns 14.9, which is rounded to 15ns.
Note that a snippet is a tiny area of reusable source code, machine code, or text in programming. These are often explicitly specified operational units that are included in bigger programming modules. Some text editors, computer source code editors, IDEs, and related tools provide snippet management.
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