4-A heat pump with an efficiency coefficient of 2.4 is used to heat a house. Which of the following heat is provided by a heat pump with a power of 5.9 kW from the network? A) 59,32 kW  B) 14,16 kW  C) 2,46 kW  D) 40,68 kW  E) 24,13 kW

Q: A heat machine that can produce up to 880 kJ of work by taking waste heat from a melting furnace…

A: Given Data W = 880KJ Th=1330C Tl = 77C To find the highest efficiency of the heat sink

Q: The friction coefficient between the crate and truck top surface is (0.5). If the truck initially…

A: Given Data: The initial speed of the truck, u=50 km/hr Coefficient of friction, 0.5

Q: Problem 1. A DC motor has the following characteristic curve. What is the Motor Stall Torque:

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Q: The formation of frost on cooling coils in a refrigerator A) Increases heat transfer B) Improves…

A: Increases power consumption

Q: chine that can produce up to 580 kJ of work by taking waste heat from a melting furnace (temperature…

A:

Q: 2. If the engine operates at 50 cycles per second, the power output is A) 381 W B) 45.8 W C) 1145 W…

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Q: 49. A piping system includes three pumps each having the performance characteristics shown in the…

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Q: A refrigerator draws 9000 kJ / h of heat from the cold environment at 2 ° C and gives heat to the…

A:

Q: 9- A refrigerator requires 5 hp to provide 24000 kJ/h of cooling. The COP of the refrigerator is…

A:

Q: 1-The velocity of the air entering an adiabatic Sole is 25 m/s, its temperature is 112°C and its…

A:

Q: VII- can be employing to measuring flow rate at a fixed temperature. a) Rotameter b) Orometer e)…

A: It is required to choose correct answer

Q: 2. If the engine operates at 50 cycles per second, the power output is A) 381 W B) 45.8 W C) 1145 W…

A: Definition:Engine powerThis engine power focuses on how much labor or energy an engine can generate…

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A: Given the pressure is increased from 1 bar to 4 bar and the flow rate of water is 150 l/min. P1 = 1…

Q: A very long rod extends horizontally from a heated wall. The rod is 20 mm in diameter and the heated…

A: Given that  Diameter of the copper rod, d = 20mm.Temperature of the wall ,Tw  =100° C . Temperature…

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A: Air conditioner Air conditioner is the device which remove the heat from the room and made room…

Q: A 72 MW thermal power plant, which receives heat from a thermal source at 420℃, leaves 30 MW of heat…

A:

Q: - A heat engine that gives heat to a heat well at 70 ºC receives heat from a source at 1020 ºC.…

A:

Q: The air with a density of 1.1 kg / m^3 enters the duct of the air conditioning system with a flow…

A:

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Q: A 50 kg weighted foodstuff with a specific temperature of 3.18 kj / kgK is heated in an oven by…

A:

Q: A shell-and-tube heat exchanger uses hot oil at 100-C to heat air. The oil makes six tube passes and…

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Q: 4. Andrew, whose mass is 60 kg, spins a ball of mass 0,4 kg on a frictionless table top with a…

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Q: Water flows through a pipe network. The pressure, velocity, and altitude at a given point (point 1)…

A: Option a is correct 6.33m

Q: 23. For a site, if the load to be covered is 17,520,200 MWh, and a wind turbine with 3 MW capacity,…

A: Given : P - 3 MW E - 6000 MWh C - 1500 Euro/kW To find : Cost of energy

Q: 9. When the current through a 10 k2 is 10 mA, the power is а) 1W b) 10 W c) 100 mW d) 1000 μW

A: Given Data R=10000 ohm I=10 mA=0.01 A

Q: - A heat machine that can produce up to 850 kJ of work by taking waste heat from a furnace…

A: Option  E   is correct  227.8 kJ

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A: Given that, Mass flow rate of air, m˙=24 kg/sec,Specific volume of air after exit from turbine,…

Q: 5.0 cm thick plate of ceramic (k = 2.0 W/m K) has a temperature difference of 30°C across it. If the…

A:

Q: Consider two Carnot heat engines operating in series. The first engine receives heat from the…

A: Given Data T1=1400 K  T3=300 K

Q: 1240 kW

A:

Q: A shell-and-tube heat exchanger uses hot oil at 100-C to heat air. The oil makes six tube passes and…

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Q: Match the following. 1) Solar water heater which use a heat transfer fluid 2) Solar water heater…

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Q: 11-A maximum of 5 kW of power can be consumed for a heat pump. If the efficiency coefficient is…

A: coefficient of performance COP = Desired effect / work input required

Q: 23. For a site, if the load to be covered is 17,520,200 MWh, and a wind turbine with 3 MW capacity,…

A: Given: The load to be covered, P = 17520,200 MWh The capacity of wind turbine, P' = 3 MW The actual…

Q: Ethyl glycol (Cp=2.56 kJ/kgºC) with a mass flow rate of 6.13 kg/s is cooled with water from 78ºC to…

A:

Q: An electric heater has a power of 3 kW and is kept on for 50 minutes in a classroom. Which of the…

A:

Engineering Drawing

Technical drawing has been around since ancient times. As in the ancient Renaissance, complicated drawings were created, including Leonardo da Vinci's drawing. Modern engineering drawing, including its specific orthographic projection with scale conventions, began in Europe (France) during the early stages of Industrialization. L.T. C. Rolt also made some of Marc's drawings for its block-making machinery (in 1799) that also may have contributed significantly to British engineering technology. Since he learned the art of presenting three-dimensional(3D) items in a two-dimensional(2D) plane, as we now term mechanical drawing.