Test: Hydraulic Pump - 2

Question 1

If two pumps identical in all respects and each capable of delivering a discharge Q against a head H are connected in series, the resulting discharge is

Accepted Answer

Q against a head 2H

Answer

2Q against a head 2H

Answer

2Q against a head H

Answer

√Q against a head √2H

Question 2

Cavitation parameter a defined in terms of NPSH (net positive suction head) and net head H as, σ =

Accepted Answer

Answer

Answer

Answer

Question 3

In a pump installation the local atmospheric pressure is 10 m of water, vapour pressure head is 0.4 m (abs), height of the pump above sump water level is 5 m. For a head loss in the suction side of 0.6 m, the NPSH is

Accepted Answer

4 m

Answer

5 m

Answer

4.3 m

Answer

16 m

Question 4

Water is to be lifted by a net head of 184 m. Identical pumps with specific speed of 30 and rotative of 1500 rpm capable of discharging 200 L/s are available. The number of pumps required is [Take 184^3/4 = 50]

Accepted Answer

5

Answer

2

Answer

3

Answer

4

Question 5

Water is pumped through a pipeline to a hieght of 10 m at the rate of 0.1 m³/s. Frictional and other minor losses are 5 m. Pumping power required, in kW is

Accepted Answer

14.7

Answer

9.8

Answer

20

Answer

13.3

Question 6

In a reciprocating pump without air vessel, the friction head in the delivery pipe is maximum at the crank angle θ =

Accepted Answer

900

Answer

00

Answer

1350

Answer

1800

Question 7

The indicator diagram of a reciprocating pump is a plot of

Accepted Answer

pressure head vs stroke length

Answer

work done vs stroke length

Answer

acceleration head vs stroke length

Answer

angular displacement vs stroke length

Question 8

Actual indicator diagram for a single stage "reciprocating pump is represented by

Accepted Answer

Answer

Answer

Answer

Question 9

An air vessel in the delivery side of a reciprocating pump

Accepted Answer

maintains steady discharge output

Answer

prevents cavitation in the system

Answer

enables suction head to be increased

Answer

enables the pump to run at higher speed

Question 10

Which one of the following is not a positive displacement pump?

Accepted Answer

Centrifugal pump

Answer

Reciprocating pump

Answer

Vane pump

Answer

Lobe pump

Hydraulic Pump - 2 - Free MCQ Practice Test with solutions, GATE ME

MCQ Practice Test & Solutions: Test: Hydraulic Pump - 2 (10 Questions)

If two pumps identical in all respects and each capable of delivering a discharge Q against a head H are connected in series, the resulting discharge is

Cavitation parameter a defined in terms of NPSH (net positive suction head) and net head H as, σ =

In a pump installation the local atmospheric pressure is 10 m of water, vapour pressure head is 0.4 m (abs), height of the pump above sump water level is 5 m. For a head loss in the suction side of 0.6 m, the NPSH is

Water is to be lifted by a net head of 184 m. Identical pumps with specific speed of 30 and rotative of 1500 rpm capable of discharging 200 L/s are available. The number of pumps required is [Take 184^3/4 = 50]

Water is pumped through a pipeline to a hieght of 10 m at the rate of 0.1 m³/s. Frictional and other minor losses are 5 m. Pumping power required, in kW is

In a reciprocating pump without air vessel, the friction head in the delivery pipe is maximum at the crank angle θ =

The indicator diagram of a reciprocating pump is a plot of

Actual indicator diagram for a single stage "reciprocating pump is represented by

An air vessel in the delivery side of a reciprocating pump

Which one of the following is not a positive displacement pump?

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Hydraulic Pump - 2 - Free MCQ Practice Test with solutions, GATE ME

MCQ Practice Test & Solutions: Test: Hydraulic Pump - 2 (10 Questions)

If two pumps identical in all respects and each capable of delivering a discharge Q against a head H are connected in series, the resulting discharge is

Cavitation parameter a defined in terms of NPSH (net positive suction head) and net head H as, σ =

In a pump installation the local atmospheric pressure is 10 m of water, vapour pressure head is 0.4 m (abs), height of the pump above sump water level is 5 m. For a head loss in the suction side of 0.6 m, the NPSH is

Water is to be lifted by a net head of 184 m. Identical pumps with specific speed of 30 and rotative of 1500 rpm capable of discharging 200 L/s are available. The number of pumps required is [Take 1843/4 = 50]

Water is pumped through a pipeline to a hieght of 10 m at the rate of 0.1 m3/s. Frictional and other minor losses are 5 m. Pumping power required, in kW is

In a reciprocating pump without air vessel, the friction head in the delivery pipe is maximum at the crank angle θ =

The indicator diagram of a reciprocating pump is a plot of

Actual indicator diagram for a single stage "reciprocating pump is represented by

An air vessel in the delivery side of a reciprocating pump

Which one of the following is not a positive displacement pump?

Topicwise Question Bank for Mechanical Engineering

Topicwise Question Bank for Mechanical Engineering

Top Courses for Mechanical Engineering

About this Mechanical Engineering Practice Test

Explore more Mechanical Engineering Study Resources

Water is to be lifted by a net head of 184 m. Identical pumps with specific speed of 30 and rotative of 1500 rpm capable of discharging 200 L/s are available. The number of pumps required is [Take 184^3/4 = 50]

Water is pumped through a pipeline to a hieght of 10 m at the rate of 0.1 m³/s. Frictional and other minor losses are 5 m. Pumping power required, in kW is