1. A pump has a 20gpm capacity and is used to discharge water 0.6 m above the pump centerline at a discharge pressure of

[answerhappygod]

1 A Pump Has A 20gpm Capacity And Is Used To Discharge Water 0 6 M Above The Pump Centerline At A Discharge Pressure Of 1 (107.01 KiB) Viewed 40 times

1. A pump has a 20gpm capacity and is used to discharge water 0.6 m above the pump centerline at a discharge pressure of 3.5kgffm​cm2 and speed of 0.878 m/s. If the suction is located below the pump centerline with water being maintained at 0.7kgf/cm2 pressure and speed of 0.652 m/s, determine the power of the pump in watts. A. 360 watts C. 392 watts B. 528 watts D. 500 watts 2. An electric motor with rating of 7.5 kW is used to drive a water pump with a pump efficiency of 80%. Frictional losses in the motor is found to be at 380 W. If the water is conveyed at a 22,708.8 kg/ ​hr flow rate at a discharge pressure of 896.071kPa, solve for the suction pressure of the pump, if the source is located below the pump centerline. A. −6,920 Pa C. −104kPa B. −692 Pa D. −55.1kPa 3. A centrifugal pump is to be found in a location where the local acceleration due to gravity is no longer constant and has a total dynamic head of 34.724ft. This pump has a pressure discharge equal to the standard atmospheric air pressure at a water discharge speed of 150 fpm. Find the value of the existing gravitational acceleration at the said location. A. 31.5fps2 C. 7.60fps2 B. 35.5fps2 D. 9.50fps2 4. A centrifugal pump has the following operating characteristics: At the suction: At the discharge:  Speed =1.02 m/sec Pressure =16,932 Pa​ Speed =4.07 m/sec Pressure =110,675 Pa​ If the pump efficiency is at 85% with a discharge of 3096Li/min, determine the pump input. A. 8200 watts C. 7200 watts B. 5200 watts D. 6200 watts ATE PROBLEMS: 5. An industrial fan operating at standard conditions (1 atm &21.1∘C) develops a power output of 0.1 megawatts at a head of 200 mm water gage. At the same speed, what would be the new power output if the fan were to be operated at a pressure of 97kPa and temperature of 27∘C ? A. 94.0 C. 0.94 B. 0.94 D. 9.40 6. Determine the efficiency of a ventilating fan that is able to handle 4.4 m2/sec of air through a 91 cm diameter duct against a static pressure of 0.022 m water gage. Prevailing atmospheric is 730 mmHg, temperature is 29.44∘C, and the fluid density is 62.1117lb/ft3. The input to the fan is 2.65 kW. A. 55.00% C. 35.62% B. 45.62% D. 25.62% 7. It requires 55hp to compress 1000cfm of air at 60oF and 14.696psia to a pressure of 24.696 psia and temperature of 184 F. Via the law of conservation of mass, m˙1​=m˙2​, how much air had been compressed and delivered? A. 700.91ft/min C. 801.62ft1/min B. 737.06ft3/min D. 852.64ft3/min