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Fluid-mechanics Questions Set 76:

Quiz Mode

In a centrifugal pump the liquid enters the pump

at the centre

at the top

at the bottom

from sides

Solution:

Rotameter is a

drag force flow meter

variable area flow meter

variable head flow meter

rotating propeller type flow meter

Solution:

Which of the following is a positive displacement device?

Ultrasonic flow meter

Turbine flow meter

Laser Doppler Anemometer

Hot wire Anemometer

Solution:

A Rotameter can be used

Only in vertical orientation (direction)

Only in horizontal orientation (direction)

In any orientation (direction)

For zero orientation (direction)

Solution:

Capacity of a hydraulic accumulator is generally specified as

Quantity of liquid accumulated

Maximum pressure developed

Maximum energy stored

Maximum Quantity of discharge allowed

Solution:

If a hydraulic press has a ram of 32.5 cm diameter and a plunger of 3.25 cm diameter, what force would be required on the plunger to raise a mass of 500kg on the ram?

98.1N

9.81N

49.05N

4.905N

Solution:

A centrifugal pump lifts 0.013 m3 /s water from a depth of 32 m. If the pump motor consumes 6 kW, what is the overall efficiency of the pump? Given the density of water = 1000 kg/m3.

88%

75%

69%

None of the above

Solution:

What will be the velocity of piston movement for a single-acting hydraulic actuator, when the fluid pressure is 100 bar, the diameter of the piston is 50 mm and the flow rate is 0.3 m 3 /min?

2.41 m/s

2.55 m/s

2.67 m/s

2.84 m/s

Solution:

How does pressure intensity varies when liquid rotates at an angular velocity of a vertical axis?

Directly with radial distance

Directly with square of the radial distance

Inversely with square of the radial distance

None of the above

Solution:

In hydraulic Brakes "Bleeding" refers to

The process of removing air out from the braking system

The process of filling the brake fluid in the brake cylinders

The leakage of brake fluid in the brake system

The process of emptying the brake fluid from the brake system

Fluid-mechanics Questions Set 76:

In a centrifugal pump the liquid enters the pump

Solution:

Rotameter is a

Solution:

Which of the following is a positive displacement device?

Solution:

A Rotameter can be used

Solution:

Capacity of a hydraulic accumulator is generally specified as

Solution:

If a hydraulic press has a ram of 32.5 cm diameter and a plunger of 3.25 cm diameter, what force would be required on the plunger to raise a mass of 500kg on the ram?

Solution:

A centrifugal pump lifts 0.013 m3 /s water from a depth of 32 m. If the pump motor consumes 6 kW, what is the overall efficiency of the pump? Given the density of water = 1000 kg/m3.

Solution:

What will be the velocity of piston movement for a single-acting hydraulic actuator, when the fluid pressure is 100 bar, the diameter of the piston is 50 mm and the flow rate is 0.3 m 3 /min?

Solution:

How does pressure intensity varies when liquid rotates at an angular velocity of a vertical axis?

Solution:

In hydraulic Brakes "Bleeding" refers to

Solution:

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