Describe briefly the difference between a heat engine and a heat pump.

Q: Which of the following refrigerants are suggested as replacements for R22 in large air conditioning…

A: Correct answer: (B) R410A

Q: 3. The 80-mm-radius wheel shown rolls without slipping to the left with a velocity of 900 mm/s.…

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Q: Q3: For a 94.5 wt% Fe-5.5 wt% C at a temperaturel100 °C, determine the following: a) The Number and…

A: Solution of the question is given in next steps. A diagram has been drawn and question is solved…

Q: The shafts are made of A-36 steel and each has a diameter of 80 mm. Determine the angle of twist of…

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Q: piece of metal subjected to three forces is fold as shown in the figure. Replace the three forces…

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Q: A turbine receives steam at the following state: pressure 1200 kPag, enthalpy 2875 kJ/kg, speed 33.3…

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Q: To make the 3d sketch for each of the frames which contain the views in the plan

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Q: A drum with a radius of 0.5 ft has a weight of 90 lb and a radius of gyration ko = 0.3 ft. A…

A: Given:m=90 lbk=0.3 ftP=15 lbω1=6 rad/sω2=24 rad/s

Q: require at least 4.5 HP to deliver the volume of air needed. The owner has also a second hand motor…

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Q: A small car of mass 2000-kg reared a stalled truck of mass 3000-kg on a straight road. The two…

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Q: A 20.0kg crate is subjected to a constant force of 100 N as shown in the figure. When the distance…

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Q: An airplane engine running at 2775 RPM turns a propeller at 1800 RPM, what is the gear ratio?

A: Gear Ratio=Ne/NP G=2775/1800=1.54

Q: At a given section a shaft is subjected to a bending stress of 30 MN/m2 and a shear stress of 60…

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Q: A cantilever beam is subjected to an inclined force (P) as shown in Figure 1, the equilibrium normal…

A: It is needed to determine the equilibrium normal force at the point A.

Q: A 100 lb. wooden crate is pushed across a stone floor with a horizontal force of 45 lbs. How long…

A: Given     Mass, m = 100 lb                   = 45.35 kg      Force, F = 200 N Distance, s = 200 ft…

Q: There is no negative force, but the negative and positive represent the direction of the compound то…

A: These questions are based on the concept of classical mechanics.

Q: A cantilever beam is subjected to an inclined force (P) as shown in Figure 1, the equilibrium normal…

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Q: Determine the rate of flow of water through a pipe of diameter 20 cm and length 50 m when one end of…

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Q: Brayton Cycle: 18. An air standard Brayton cycle operates with compression ratio of 6 and…

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Q: Choose the correct answer The suction pressure of a refrigerant should be as low as possible The…

A: Given data To select the correct option.

Q: steam power plant of 40% thermal efficiency receives heat of 150 MJ at high temperature while…

A: Given data :- thermal efficiency = 40 % heat received = 150 MJ work for circulating water = 10 MJ…

Q: DIRECTIONS: 1. Illustrate the directions of the reaction forces with a FBD. 2. Solve for the…

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Q: a) Properties of pure substance changes with phase, temperature and important to understand specific…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: The cable connecting the winch A to point B on the railroad car is wound in at the constant rate of…

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Q: 12 mm Determine the following: a. Shearing Stress in the head bolt. b. Shearing in the thread c. The…

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Q: Q3/ One mole of an ideal gas, initially at 40°C and 1 bar, is changed to 120°C and 15 bar by three…

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Q: Show the complete and legible solutions, with the format GIVEN, REQUIRED, SOLUTION, FINAL, and…

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Q: 2. An undivided road has a design speed of 85 km/h. Initial cross slope of the road surface is 2%,…

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Q: * For the cantilever beam shown. find the value of compound stresses at :point E due to Normal…

A: Given:P=2 KNPt=4 KNT=6 KN.mL=10 md=100 mm

Q: The food compartment of a refr °C by removing heat from it at refrigerator is 2 kW. Determine and…

A: Given: Win = 2 kW QL = 360 kJ/min

Q: Find the angle between the two given vectors. u = (1, -4, 1), v = 3(0,2, -2) Write your answer in…

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Q: For the cantilever beam shown. find the value of Torsion stress at point E :due to Torque

A: Given:P=2 KNPt=4 KNT=6 KN.mL=10 md=100 mm

Q: Water flows through a horizontal tapered pipe with a diameter of 300 mm at one end and 200 mm at…

A: Water flows through a horizontal tapered pipe with a diameter of 300 mm on one end and 200 mm on the…

Q: Determine the force in member BC and indicate if tensile or compressive. 1 kN 1 kN 1 kN 1 kN 1 kN 2m…

A: As there is no external horizontal forces in the given truss, we can say that, there will be no…

Q: An air vapor mixture has a DB temperature of 30 degrees Celsius and a humidity ratio of 0.015 kg/kg…

A: Moist air consists of dry air as well as water vapour. The amount of water vapour to that of dry air…

Q: CONSIDER A GLASS WINDOW OF 1-2m2 WIH A THICKNESS WITH AN AREA OF Bmm AND THERMAL CONDUCTIVITH OF…

A: Answer: (a) The rate of heat transfer through this glass window is 266.16 W. (b) The temperature of…

Q: An oxygen cylinder has a capacity of 300 L and contains O2 at 3.1 MPa and 18 °C. The value is open…

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Q: A 50 mm X 80 mm rectangular steel plate subjected to the uniaxial stress condition is shown in the…

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Q: A rectangular block is 6 in. long in the x – direction, 4 in. long in the y – direction, and 7 in.…

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Q: For the cantilever beam shown. find the value of Normal stress due to :axial load at point E 4 KN 6…

A: Given:P= 2 KNPt=4 KNM=6 KN.mL=10 m

Q: What is the maximum normal stress, MPa, due to bending on section C? For S200x27.4, S = 235µm^3.…

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Q: A turbojet aircraft moving with a velocity of 790 ft/s at a runway where the pressure & temperature…

A: Given that, Velocity of turbojet aircraft, V=790 ft/sec,Pressure orf engine, P1=14.7 psi,Temperature…

Q: Question 1.1 Identify the weld defect shown in Figure 1 below. Provide reasons for your selection.…

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Q: How would the total mechanical energy losses be affected if valves and fittings are added in the…

A: Given question: How would the total mechanical energy losses be affected if valves and fittings are…

Q: 200 mm 300 mm Steel 75 mm Brass

A: Givenρb=8.75 Mg/m3=8750 kg/m3ρs=7.87 Mg/m3=7870 kg/m3

Q: Problem 2 Find the centroid of the shaded plane with respect to reference axis in the figure shown…

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Q: A 40-kg packing crate is pulled by a rope as shown with a force P = 200 N. The coefficient of…

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Q: single-cylinder recipr rpm 0: and the stroke is 32 mm the mass of the revolving parts at 16 mm…

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Q: 10.6 As shown, air (20°C) is flowing from a large tank, through a horizontal pipe, and then…

A: given data:- air at 20°C length = 50 m velocity = 10 m/s friction factor = 0.015. find the pressure…

Q: Figure 1: y P = 400 kN 30° 1000 mm A Area 30 mm 20 mm In Figure 1, the equilibrium shear force…

A: Given data :- force = 400KN find the shear force at point A.