A sump pump turning at 1600 rpm provides a discharge of 9 gpm against a head of 18 ft. Compute the minimum power input. Use the graph below to determine the efficiency.

Q: For the Wheatstone Bridge network shown in Figure. What is the value of x when Wheatstone's network…

A:

Q: Find the rating of generators that must be installed in a hydro electric project serving a load…

A: Given, Catchment area = 6x109 m2 Mean Head, h =  38 m. Load Factor = 35%. Annual rainfall, F= 1.6 m.…

Q: What must be the power output of the pump?

A: The mass of the water is The depth of the well is The ejection speed of the water is Power Where,…

Q: What do you understand

A: Given;  What do we understand if the machine is 85% efficient. Derive the statement ?

Q: At a hydroelectric power plant, the water pressure head is at a height of 300 m and the water flow…

A:

Q: the energy input to an engine is 4 times greater than the work it performs. what is its efficiency

A: Out put of the engine is the work it performs.Let it be w. Given the input is 4w Efficiency of an…

Q: An engine doing work isothermally takes in 10kJ and exahusts 1kJ. What is the efficiency of the…

A: Heat takes the engine,                               Heat exhausts the engine,…

Q: u are trying to help a friend calculate their utilization rate for their study time. They can…

A: utilization rate =[ number of problem in present hour/maximum problem rate] ×100

Q: A pump is used to lift 600 kg of water from a depth of 50 m in 20 sec. Take g= 10 ms ² a. Workdone…

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Q: 3) A pump with an efficiency of mm% is used to pump water from a tank (stationary water inside) at…

A:

Q: a heat engine outputs 100 Joules work and releases 400 Joules to the cold source.  what is the heat…

A: The heat energy absorbed heat engine from the hot source is given by, Qh=W+Qc Here, W is the work…

Q: A 1400kg car accelerates from 11 m/s to 22 m/s. How much mechanical work was done on the car by the…

A: Given that:-Mass of the car, m=1400 kgInitial velocity, vi=11 m/sFinal velocity, vf=22 m/sWe know…

Q: A winch raises a 100 kg mass a height of 8 m in 24.2 seconds.  The average power consumption of the…

A: Given  m=100kg h=8m t=24.2s Pi=500W g = 10 N/kg

Q: The kinetic energy is water is used to run turbines. a) True b) False

A: Option b

Q: of the same diameter, 400 μ (with Vt = 1.5 m/s) ozzles that make all the drops 200 µ (with Vt =

A: Given: Vt=1.5 m/s Vt=0.7 m/s 400 μ 200 μ To find the new collection efficiency.

Q: maximum power consumption at load resi stor R,

A:

Q: Suppose a theme park roller coaster has a train with six carriages. Each carriage takes eight…

A: The number of time roller coaster loads is N=60min-3min60smin30s=114times

Q: The work performed as a function of time for a process is given by W= at3 where a=2.4 J/s3 What is…

A: Given Work performed as a function of time is given as W=at3 a=2.4 J/s3   We have to find the power…

Q: hydro-electric power plant having 50 sq.km reservoir area and 100 m head is used to generate power.…

A: given reservoir area 50 sq.km=50*106 m2 head, h=100m The overall generation efficiency is 75% power…

Q: A two-stroke direct injection diesel engine has a displacement of 23 liters. The engine has a…

A: It is theoretical parameter used to measure the performance of and ICE (Internal Combustion Engine).…

Q: A heat engine extracts 45.0 kJ from the hot reservoir and exhausts 40.0 kJ into the cold reservoir.…

A: The work done by heat engine: W=QH-QC Efficiency η=1-QCQH Given QC=40kJ QH=45kJ

Q: A heat engine does 20 J of work while exhausting 30 J of waste heat. What is the engine’s…

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Q: An 800-MW electric power plant has an efficiency of 30%. It losses its waste heat in large cooling…

A:

Q: At a hydroelectric power plant, the water pressure head is at a height of 300 m and the water flow…

A: We have-Height of water pressure ead, h=300 mVolume of water flow per second, V=100 m3/sEfficiency…

Q: 7. An engine releases 1675 J of energy per cycle and performs 200J of work. What is the thernal…

A: The thermal efficiency of an engine is given by e% = WQin×100, where W = work done by the engine Qin…

Q: The actual power output of a wind turbine with an efficiency of 45% is 1250kw. The predicted output…

A: Given data, Efficiency is given η=45 %. Output power Pout=1250 KW.

Q: if the cycle time of the product is more, then that product output will be......... a. Minimum b.…

A: Solution: The more is the cycle time, the less will be the product availability. To increase the…

Q: Energy may be stored for use during peak demand

A: (b) (i) Energy required each night E = mgh = 1.35 X 105 X 9.8 X 135  =  178605000 J = 1.78605 X 108…

Q: What is the efficiency of an engine that received a 57 kJ of energy from a reservoir and produces…

A: Given: The received heat by the engine is 57 kJ. The work produced by the engine is 1900 J.

Q: An appliance used up 33.0 kJ of energy for 60 seconds at a 220 V potential difference. 1.  How much…

A: Given data:  Energy (E) = 33.0 kJ = 33.0×103 J Time (t) = 60 s Required: Power (P)

Q: The coefficient of performance of a refrigerator is 2.6, and the compressor is using power 450 W.…

A: Given value--- The coefficient of performance= 2.6 . power = 450 W.  We have to find--- With what…

Q: A hydroelectric plant has a head of 80 m and a water volumetric flow rate of 1200 m³/s. Determine…

A: Height of the hydroelectric plant (h)=80 m Water volumetric flow rate (Q)=1200 m3/s Efficiency of…