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Q: If air is at pressure P of 3200 lb/ft2 and a temperature T of 800R degrees, what is the specific vol...
A: Given data: P=3200 lb/ft2T=800 °R Need to determine the specific volume.
Q: 3. Centroid of quarter circular area is.. 4r A.X = 3n 4r B. y = C. x = y = 4r D. None of these. 3n 4...
A: It is required to choose correct answer
Q: A centrifugal compressor pumps 45.3 kg/min of air at 101.32kPa and 15.6°C to 345 kPa and 132°C by an...
A: Since the temperature of water flowing outside the casing of the compressor increases, some amount o...
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A: The support reactions can be calculated taking the summation of vertical and forces to be zero and t...
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Q: In a quasi-static isobaric expansion, 550 J of work are done by the gas. If the gas pressure is 0.30...
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Q: A manometer containing oil (p = 850 kg/m3) is attached to a tank filled with air. If the oil-level d...
A: As per given question Density of oil =850 kg/m3 oil level difference =80 cm Atmosphere pressure =98...
Q: Marin factors tend to reduce the strength; stress concentration factors tend to increase the stress....
A: Explanation As we know that the marin equation is given as Endurence strengthSe=KaKbKcKdKeKfSe' Wher...
Q: The overall heat transfer coefficient in internal combustion engine depend on Select one: O a. Only ...
A: given data; The overall heat transfer coefficient in internal combustion engine depend on Select one...
Q: 2. The following table lists diffraction angles for the first three peaks (first-order) of the x-ray...
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Q: Boiling
A: given:T1=1100XT2=4500X
Q: Open tank (4.5 m long, 2.5 m height and 3 m wide) contains liquid (S-0.75) to height 1. m. If this t...
A: Length = 4.5 m Height = 2.5 m Width = 3 m Acceleration = 3.5 m/s2 Height of liquid = 1 m
Q: Find the capillary action in ft of mercury in a glass capillary tube having a diameter of 3mm if the...
A: Given :- Surface tension (T) = 0.612 N/m Diameter (d) = 3mm = 0.003 m Radius (r) = d/2 = 1.5 mm = 0...
Q: 3- An air conditioned space with inside design condition of DBT=25.5 °C, WBT=18 °C has a sensible he...
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Q: List any 2 specifications of mine shaft headgear?
A: given; List any 2 specifications of mine shaft headgear?
Q: 4. Determine which of the following exposures are safe, and which are unsafe, using the appropriate ...
A: According to question option ( d ) is correct.
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Q: For full depth of involute spur gears. minimum number of teeth of pinion to avoid interference depen...
A: Interference: When involute profile of one gear comes in contact of non involute profile of other ge...
Q: A centrifugal pump is used to pump water between two reservoirs as shown in the bellow figure. The d...
A: Here's the solution friends. Please have check
Q: A tractor is pulling a sled with a load on it a distance of 250m. The tractor exerts a constant pull...
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Q: he shafts are made of steel with shear modulus of 75 GPa. Determine the angle of twist of gear B if ...
A: ⇒given data;⇒shear modulus(G)=75GPa =75*103MPa⇒angle of twist for gear B(θ)...
Q: A open tank contains water upto a depth of 2 m and above it an oil of specific gravity 0.9 for a dep...
A:
Q: An internal combustion engine delivers 394 Hp, while exerting a torque of 164 Ibf ft. Determine the ...
A: Given data:
Q: stream flowing at 141 ft3/s and have a vertical drop of 16 ft will be used to generate electricity i...
A: given data; ⇒stream flow rate(Q)=141ft3/s⇔3.99m3/s⇒verrtical drop (h)=16ft⇔4.87m⇒turbine efficiency(...
Q: Calculate the pressure difference between A and B.
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Q: Mechanical Engineering Question
A: Given Data Given fluid is water (H2O)
Q: Exercise 2.3.17 Sarah has attached a resistance cable to her foot to give her leg a Let r be the len...
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Q: 2. A uniform bar AB, 100 CM long. weighing 80 N has an upward force of 60 N applied to the bar 20 cM...
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Q: Suppose an ideally-prepared test specimen in an R.R. Moore rotating beam test has an ultimate streng...
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Q: Statics; working
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Q: Q4. a) Why is the reversed Carnot cycle executed within the saturation dome not a realistic model fo...
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Q: Greases are: Select one: O A. Solid lubricants O B. Liquid lubricants O C. Semi-transparent lubrican...
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Q: A 4.5-centimeter [cm] radius cylindrical tank holds a liquefied version of a new polymeric compound...
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Q: T. = 310 K The thickness of a wall is 0.07 m. right side of the wall air and T sur = 300 K exposed t...
A: given data; ⇒thickness of wall (x)=0.07m⇒external surface temperature of wall right side (T2)=500K⇒a...
Q: Part 2) Moments 2.1) Write the definition of the moment created about a point p and from a force app...
A: 2.1 Moment: It is the product of the force with the perpendicular distance between line of action of...
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Q: Where did the 4/5 and 3/5 came from on the solution? Can someone explain
A: Solution:
Q: Force F shown has a magnitude = 8 kN. The magniude of the moment of " :about the z-axis 4 m F 6 m
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Q: k 4r -Pulley, mass moment of inertia J, m x(1)
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Q: 2. Two solids of right section 2 and 4 are in pure rolling contact between the circular arcs. What i...
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Q: The connection shown in the Figure consists of five steel plates, each 5 mm long. thick, joined by a...
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Q: Q4: A composite bar is constructed from a steel rod of 25 mm diameter surrounded by a copper tube of...
A: Solution: Note: For steel: For Copper:
Q: Contvert to SI Units 52 Btu/lbmoF to J/kgoC
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Q: 3. Two cables are tied together at c and are loaded as shown. (u) Determine the tension in cable AC ...
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Q: Determine the range of P values for which the resulting from the three forces applied to the bracket...
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Q: A crate is nung by ropes attached to a steel ring. Assume that the center of gravity (CG) of the cra...
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Q: 3. Determine the resultant force and moment about a. Point A b. Point C „200 KN. 300 KN. 3 m 4 m 58 ...
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Q: Two cylinders rolling in the opposite direction has a speed ratio of 3. If the diameter of the drive...
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Q: A spring scale A and a lever scale B having equal lever arms are fastened to the roof of an elevator...
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Q: Static problem: Determine the forces in members DG, EG, and EH by the method of sections. Indicate ...
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Lumped heat transfer analysis of a solid object suddenly exposed to a fluid medium at a different temp is valid when
(a) Biot number < 0.1
(b) Biot number > 0.1
(c) Fourier number <0.1
(d) Fourier number > 0.1
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- 3.9 The heat transfer coefficients for the flow of 26.6°C air over a sphere of 1.25 cm in diameter are measured by observing the temperature-time history of a copper ball the same dimension. The temperature of the copper ball was measured by two thermocouples, one located in the center and the other near the surface. The two thermocouples registered, within the accuracy of the recording instruments, the same temperature at any given instant. In one test run, the initial temperature of the ball was 66°C, and the temperature decreased by 7°C in 1.15 min. Calculate the heat transfer coefficient for this case.The TPD method measures temperature elevations in a tissue region during a heating pulse and its later temperature decay after the pulse. It is then using the Pennes bioheat equation to perform a curve fitting to determine the local blood perfusion rate. If the TPD probe is placed in the vicinity of very large blood vessel, will the TPD technique provide an accurate measurement of the local blood perfusion in the vicinity of this large blood vessel? Explain briefly. (Hint: Is the Pennes bioheat equation accurate surrounding a large blood vessel?)A convection problem has a Nusselt number equai to 10. where the contribution of diffusion is normalised and set equal to a value of 1.0. Select the correct statementis): | The ratio of advection to diffusion is 9. The ratio advection to convection is 10 The ratio of convection to diffusion is 10. The ratio advection to convection is 9. The ratio of advection to diffusion is 10.
- A J- type thermocouple is used to measure the temperature in a heating process. Sheath material used is SS316. The length of the sheath is 13mm and thickness is 0.3mm. Find the time constant of the sheath. Material QU(kg/m)s(J/Kg - °c) K(W/m-k) Platinum 21450 130 71.6 SS304 8030 500 21.4 SS316 7990 500 21.4 SS410 7750 460 24.9 Air 1.20 1005 0.025 MgO Powder 3580 877 26.8 Silicon compound3210 800 Time constant of the bare material is, T=W Determine the heat-transfer rate from an electronic chip whose surface temperature is 31ºC and has an exposed surface area of 2 cm². The temperature of the surrounding air is 22°C. The heat-transfer coefficient for this situation is h = 25 W) and U.S. Customary units (in Btu/h). m². K rate in W (No Response) W rate in Btu/h (No Response) Btu/h What is the R-factor (film resistance, in Km²/W) for this situation? (No Response) K. m²/w Express your answer in both SI units (inA J- type thermocouple is used to measure the temperature in a heating process. Sheath material used is SS316. The length of the sheath is 10mm and thickness is 0.2mm. Find the time constant of the sheath. Material Q(kg/m3) s(J/Kg - oc) K(W/m-k) Platinum 21450 130 71.6 SS304 8030 500 21.4 SS316 7990 500 21.4 SS410 7750 460 24.9 Air 1.20 1005 0.025 MgO Powder 3580 877 26.8 Silicon compound 3210 800 3 Time constant of the bare material is, T= Answer
- 1 The temperature of the outer surface of the container T5,0 2 The temperature of the inside surface of the container Ts,i 3 The temperature at the center of the waste sphere (r = 0) °℃ °℃ °℃Examples of external data I can use to support the claim that the consumers living within regions with hot climate will buy the stainless steel pan with digital thermometer reading that is powered by the heat generated while cooking and that sales will be higher in summer.A J- type thermocouple is used to measure the temperature in a heating process. Sheath material used is SS316. The length of the sheath is 11mm and thickness is 0.2mm. Find the time constant of the sheath. Material Q(kg/m3)s(J/Kg - °c)K(W/m-k) Platinum 21450 130 71.6 SS304 8030 500 21.4 SS316 7990 500 21.4 SS410 7750 460 24.9 Air 1.20 1005 0.025 MgO Powder 3580 877 26.8 Silicon compound3210 800 Time constant of the bare material is, T=
- Specific Heat, Cp Water Thermal Thermal Content, Temperature, T Density, p Conductivity, k Ibm/ft3 Diffusivity, a ft2/s Food %(mass) °F Btu/h-ft.°F Btu/lbm-R Fruits/Vegetables Apple juice Apples Apples, dried Apricots, dried Bananas, fresh 1.51 x 10-6 1.47 x 10-6 87 68 62.4 0.323 0.922 85 32-86 52.4 0.242 0.910 41.6 73 53.4 0.127 1.03 x 10-6 0.650 1.22 x 10-6 1.51 × 10-6 43.6 73 82.4 0.217 0.662 76 41 61.2 0.278 0.856 Broccoli 21 35.0 0.223 | 1.42 x 10-6 Cherries, fresh Figs Grape juice 92 32-86 65.5 0.315 0.952 40.4 73 77.5 0.179 1.03 x 10-6 0.642 1.51 × 10-6 1.51 × 10-6 89 68 62.4 0.328 0.934 Peaches 36-90 2-32 59.9 0.304 0.934 Plums 3 38.1 0.143 | Potatoes 32-158 0-70 65.7 0.288 1.40 x 10-6 0.868 Raisins 32 73 86.2 0.217 1.18 x 10-6 0.592 Meats Beef, ground Beef, lean 67 43 59.3 0.235 1.40 x 10-6 0.802 74 37 68.0 0.272 1.40 x 10-6 0.844 Beef fat 95 50.5 0.110 72 95 73 Beef liver 0.259 0.832 1.18 x 10-6 1.40 x 10-6 Cat food 39.7 71.2 0.188 0.638 Chicken breast 75 32 65.5 0.275 0.850Let's say a 3.0 gram copper wafer is dropped from a height of 50.0 meters. If 60% of the potential energy lost in the drop could be converted to thermal energy used to heat the copper from an initial temperature of 25 degrees celsius, what would the final temperature of the copper wafer? Would the answer be different if the wafer has a mass greater than 3 grams? Note: the specific heat of copper is 387 J/(kg*K). The temperature is between 25.8 and 26.0 degrees celsius, yes the bigger the mass the greater the energy. O The temperature is between 25.6 and 25.8 celsius, answer does not depend on mass. O The temperature is between 25.0 and 25.2 celsius, answer does not depend on mass. O The temperature is 25.5 and of course the more mass something has the greater energy will be needed to raise the temperature. The temperature is 26.2 and if the mass is doubled so will be the change in temperature. O The temperature is 25.9 degrees celsius and the answer does not depend on mass. O The…A plate-shaped glass wall with a thickness of 3 cm and a heat transfer coefficient of 2W / m.K has 30C air on the inside and 10C ambient air on the outside. The internal and external convulsion coefficients are 30 W / m ^ 2.K and Since it is 15W / m ^ 2.K,a.) The amount of heat in the unit area of the wall,b.) Calculate the inner and outer surface temperatures of the wall.