Homework Answers
OPTION A: DECREASE.
Volumetric efficiency of a hydraulic system is dependant on the
viscosity of the working fluid being used in the system.
It can be concluded that efficiency increases as viscosity of the
system are increased.
Therefore, as the viscosity of water is comparatively less as
compared to viscous oil, the volumetric efficiency will also be
reduced.
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III. A 3.5 in3 hydraulic motor has a mechanical efficiency of 0.61 and a volumetric efficiency of 0.73. It produces 650 lb in of torque at 1220 rpm. System flow is provided by a piston pump that has a theoretical flow rate of 42 gpm and a mechanical efficiency of 0.71. The pump is driven by horsepower and kilowatts required to operate the system. What is the overall efficiency of the system? an electric motor with a 0.71 efficiency. Find...
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Q5:- State True or False with correcting the wrong statement 1. The volumetric efficiency of hydraulic pumps it's not effect by operation period time. 2. A pilot operated method use for moderate load in hydraulic system. 3. Hydraulic system free from fire hazards. 4. The applications of hydraulic system not obstruct the type of actuator uses. 5. To take advantage of the wasted power when the hydraulic system is ineffective, most hydraulic systems are equipped with a pressure intensifier.
Complete the following sentence. A decrease in the price of vegetable oil, a substitute in production of margarine, will margarine. the equilibrium price of margarine and _ _ the equilibrium quantity of O A. increase; increase OB. decrease; increase O C. decrease; decrease OD. increase; decrease
help me with 2 related questions
3. Shown is the hydraulic circuit of a load-lifting hydraulic system. The lowering speed is controlled by means of a throttle-check valve. Discuss the construction and operation of this system. Redraw the hydraulic circuit in the load-lowering mode, then calculate the pressure in the cylinder rod side, P the inlet flow rate, Qu outlet flow rate, Q pump flow rateé, Q pump output power, N, and the area of the throttle valve, A, Neglect...
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A radial water pump with an exit radius of 5 in. an exit blade thickness of 0.6 in. develops an actual pressure head of 100 ft at 500 gpm when rotating at 1750 rpm. The shaft power is measured to be 21 hp and the losses are estimated to be 1.4 hp for disk friction, 0.5 hp for bearings/seals, and 20 gpm for leakage. Determine: 3. a) Volumetric Efficiency b) Mechanical Efficiency c) Hydraulic Efficiency d) Exit blade angle
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