A fuel pump is delivering 10 gallons per minute of oil with a specific gravity of 0.83. The total head is 9.14 m, find how much energy does the pump consumes in kJ per hour.

A pump receives 8 kgs of water at 220 kPa and 110°C and discharges it at 1100 kPa. Compute the power required in kW.

A pump lifts water at a rate of 283 liters per second from a lake and force it into a tank 8 m above the level of the water at a pressure of 137 kPa. What is the power required in KW?

A pump discharges 150 liters per second of water to a height of 75 m. If the efficiency is 75% and the speed of the pump is 1800 rpm, what is the torque in N-m to which the drive shaft is subjected?

A centrifugal pump delivers 80 liters per second of watwr on test suction gauge reads 10 mm Hg vacuum and 1.2 m below pump centerline. Power input is 70 kW. Find the total dynamic head in meters

A pump with a 400 mm diameter suction pipe and a 350 mm diameter discharge pipe is to deliver 20,000 liters per minute of 15.6°C water. Calculate the pump head in meters if suction gage is 7.5 cm below pump centerline and reads 127 mm Hg vacuum and discharges gage is 45 cm above the pump center line and reads 75 kPa.

A centrifugal pump delivers 300,000 liters per hour of water to a pressurized tank whose pressure is 280 kPa. The source of water is 5 meters below the pump. The diameter of the suction pipe is 300 mm and the discharge pipe is 250 mm. Calculate the kW rating of the driving motor assuming the pump efficiency to be 72%.

What power can a boiler feed pump can deliver a mass of 35 kilograms per second of water at a head of 500 meters?

Determine the number of stages needed for a centrifugal pump if it is used to deliver 400 gal/min of water and pump power of 15 Hp. Each impeller develops a head of 30 ft.

A submersible pump delivers a 350 gpm of water to a height of 5 ft from the ground. The pump were installed 120 ft below the ground level and a drawdown of 8 ft during the operation. Calculate the pump power if the water level is 25 ft above the pump.

A pump delivers 500 gpm of water against a total head of 200 ft and operating at 1770 rpm. Changes have increased the total head of 375 ft. At what rpm should the pump be operated to achieve the new head at the same efficiency

The rate of flow of water in a pump installation is 60.6 kg/s. The intake static gage is 1.22 m below the pump centerline and reads 68.95 kPa gage; the discharge static gage is 0.61 m below the pump centerline and reads 344.75 kPa gage. The gages are located close to the pump as much as possible. The area of the intake and discharge pipes are 0.093 m² and 0.069 m² respectively. The pump efficiency is 74%. Take density of water equals 1000 kg/m³. What is the hydraulic power in kW?

It is desired to deliver 5 gpm at a head of 640 ft in a single stage pump having a specific speed not to exceed 40. If the speed is not to exceed 1352 rpm, how many stages are required?

A pump operating at 1750 rpm delivering 500 gpm against a total head of 150 ft. Changes is the piping system have increased the total head 360 ft. At what rpm should the pump be operated to achieve this new head at the same efficiency?

The power output is 20 Hp to a centrifugal pump that is discharging 900 gpm and which operates at 1800 rpm against a head H = 120 ft, 220 V, 3 phase, 60 Hertz. If this pump is modified to operate 1200 rpm, assuming its efficiency remains constant, determine its discharge in gpm, the theoretical head it imparts to the liquid and the power input to the pump.

Water in the rural areas is often extracted from underground water source whose free surface is 60 m below ground level. The water is to be raised 5 m above the ground by a pump. The diameter of the pipe is 10 cm at the inlet and 15 cm at the exit. Neglecting any heat interaction with the surroundings and frictional heating effects. What is the necessary power input to the pump in kW for a steady flow of water at the rate of 15 li/s? Assume pump efficiency of 74%.

What is the turbine output power of 100 meters head and delivering 1 m³/s in a hydro electric powerplant if the efficiency is 88%?

From a height of 65 m water flows at the rate of 0.85 m³/s and is driving a turbine connected to 160rpm generator. If frictional torque is 540 N-m, calculate the turbine brake power.

.A turbine has a mechanical efficiency of 95%, volumetric efficiency if 97% and total efficiency of 80%, If effective head is 40 m, find the total head.

A Pelton type turbine has 30 m head friction loss of 4.5 m. The coefficienct of friction head loss(from Moorse) is 0.00093 and penstock length of 80 m. What is the penstock diameter.

In Francis turbine, the pressure gage leadig to the turbine casing reads 380 Kpa and center of spiral casing is 3 m above the tailrace. If velocity of water entering the turbine is 8 m/sec, what is the net head of the turbine?

.A 4m x 0.5m channel has water velocity of 5 m/sec. If the head is 100 m, what is the annual energy produced if overall efficiency is 70%?

The penstock if hydro-electric plant is 0.5 x 0.5 m with velocity of 5.5 m/sec has a head of 20 m. What is the output of the turbine if the turbine efficiency is 87%?

The flow of a river is 20 m³/s and produces a total brake power of 6,000 kW. If it is proposed to install two turbines each has 85% efficiency. What the available head?

For a proposed hydro-electric powerplant, the tail water and head water elevation is 160 and 195 meters respectively. If the available flow is 10 m³/s and head loss of 5% water available head. What is the water power?

Two turbines generate a total brake power of 5000 kW. If one unit if thrice the capacity of the other. Find the capacity of the smaller unit.