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Fluid-mechanics Questions Set 71:

Quiz Mode

The pump suitable for high head low discharge:

Radial flow

Axial flow

Mixed flow

Solution:

The head against which a centrifugal pump has to work is known as:

Static head

Total load

Net positive suction head

Manometric head

Solution:

In centrifugal pumps cavitation is reduced by

Increasing the flow velocity

Reducing discharge

Throttling the discharge

Reducing suction head

Solution:

Which of the following can be considered as major loss in Fluid flowing through a pipe

Sudden Contraction

Pipe Fitting

Losses at Entrance and Exit

Frictional Loss

Solution:

When a centrifugal pump is started, there will be no flow of water until the pressure rise in the impeller is large enough to overcome the:

Manometric head

Total head

Static head

Friction head

Solution:

What is liquid A's bulk modulus of elasticity, compressed in a cylinder from 0.0136 m³ at 77.8 N/cm² pressure to a volume of 0.0132 m³ at 156.8 N/cm² pressure?

2686 N/cm²

1686 N/cm²

3686 N/cm²

4686 N/cm²

Solution:

Impeller of two geometrical similar centrifugal pump operates at same speed, how power, discharge and hand will vary with diameter ratio, d, respectively as:

d⁵ , d³, d²

d , d³, d²

d⁵ , d³, d

d³ , d², d

Solution:

Find the bulk modulus of elasticity of a liquid X if the pressure of liquid X increases from 78.5 N/cm² to 132.8 N/cm². The volume of the liquid also decreases by 0.12 percent.

45250 N/cm²

45000 N/cm²

45500 N/cm²

45750 N/cm²

Solution:

A centrifugal pump is required to lift 0.0125 m 3 /s of water from a well with depth 30 m. If rating of the pump motor is 5 kW, and the density of water is 1000 kg/m3 , the efficiency of the pump will be nearly

82%

74%

66%

58%

Solution:

Which of the following statements regarding hydraulic pumps are correct?
The gear pump consists of two close-meshing gear wheels which rotate in opposite directions.
In the vane pump, as the rotor rotates, the vanes follow the contours of the casing.
This leakage is more

1 and 3 only

2 and 3 only

1, 2 and 3

1 and 2 only

Fluid-mechanics Questions Set 71:

The pump suitable for high head low discharge:

Solution:

The head against which a centrifugal pump has to work is known as:

Solution:

In centrifugal pumps cavitation is reduced by

Solution:

Which of the following can be considered as major loss in Fluid flowing through a pipe

Solution:

When a centrifugal pump is started, there will be no flow of water until the pressure rise in the impeller is large enough to overcome the:

Solution:

What is liquid A's bulk modulus of elasticity, compressed in a cylinder from 0.0136 m³ at 77.8 N/cm² pressure to a volume of 0.0132 m³ at 156.8 N/cm² pressure?

Solution:

Impeller of two geometrical similar centrifugal pump operates at same speed, how power, discharge and hand will vary with diameter ratio, d, respectively as:

Solution:

Find the bulk modulus of elasticity of a liquid X if the pressure of liquid X increases from 78.5 N/cm² to 132.8 N/cm². The volume of the liquid also decreases by 0.12 percent.

Solution:

A centrifugal pump is required to lift 0.0125 m 3 /s of water from a well with depth 30 m. If rating of the pump motor is 5 kW, and the density of water is 1000 kg/m3 , the efficiency of the pump will be nearly

Solution:

Which of the following statements regarding hydraulic pumps are correct?
The gear pump consists of two close-meshing gear wheels which rotate in opposite directions.
In the vane pump, as the rotor rotates, the vanes follow the contours of the casing.
This leakage is more

Solution:

Related Question Sets:

Related Topics:

Fluid-mechanics Questions Set 71:

The pump suitable for high head low discharge:

Solution:

The head against which a centrifugal pump has to work is known as:

Solution:

In centrifugal pumps cavitation is reduced by

Solution:

Which of the following can be considered as major loss in Fluid flowing through a pipe

Solution:

When a centrifugal pump is started, there will be no flow of water until the pressure rise in the impeller is large enough to overcome the:

Solution:

What is liquid A's bulk modulus of elasticity, compressed in a cylinder from 0.0136 m3 at 77.8 N/cm2 pressure to a volume of 0.0132 m3 at 156.8 N/cm2 pressure?

Solution:

Impeller of two geometrical similar centrifugal pump operates at same speed, how power, discharge and hand will vary with diameter ratio, d, respectively as:

Solution:

Find the bulk modulus of elasticity of a liquid X if the pressure of liquid X increases from 78.5 N/cm2 to 132.8 N/cm2. The volume of the liquid also decreases by 0.12 percent.

Solution:

A centrifugal pump is required to lift 0.0125 m 3 /s of water from a well with depth 30 m. If rating of the pump motor is 5 kW, and the density of water is 1000 kg/m3 , the efficiency of the pump will be nearly

Solution:

Which of the following statements regarding hydraulic pumps are correct?The gear pump consists of two close-meshing gear wheels which rotate in opposite directions.In the vane pump, as the rotor rotates, the vanes follow the contours of the casing.This leakage is more

Solution:

Related Question Sets:

Related Topics:

What is liquid A's bulk modulus of elasticity, compressed in a cylinder from 0.0136 m³ at 77.8 N/cm² pressure to a volume of 0.0132 m³ at 156.8 N/cm² pressure?

Find the bulk modulus of elasticity of a liquid X if the pressure of liquid X increases from 78.5 N/cm² to 132.8 N/cm². The volume of the liquid also decreases by 0.12 percent.

Which of the following statements regarding hydraulic pumps are correct?
The gear pump consists of two close-meshing gear wheels which rotate in opposite directions.
In the vane pump, as the rotor rotates, the vanes follow the contours of the casing.
This leakage is more