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Fluid-mechanics Questions Set 6:

Quiz Mode

To find the capillary rise in a glass tube, which of the following parameters is required?

Temperature

Surface tension

Length of glass

Material of glass

Solution:

The sum of velocity head, pressure head, and datum head is known as the:

Hydraulic grade line

Total datum head line

Total energy grade line

Highest datum head line

Solution:

If a fluid is flowing from a pipe having diameter of 1 m and average velocity of 2 m/s, then find the discharge from that pipe.

0.50 m^3/s

1.56 m^3/s

3.00 m^3/s

2.32 m^3/s

Solution:

A uniform body of size 4 m long, 2.5 m wide, and 1.5 m deep floats in water. What is the weight of the body if the depth of immersion is 1 m?

73.5 kN

294.3 kN

588.6 kN

147.1 kN

Solution:

In a tidal model, the horizontal scale ratio is 1/750 and the vertical scale is 1/75. The model period (in minutes), corresponding to a prototype period of 18 hours, would be

11.24

12.47

14.96

15.87

Solution:

What is the correct parameter for the Stream function?

It is possible for four dimensions only

It is possible for two dimensions only

It is possible for three dimensions only

It is possible for one dimension only

Solution:

Which type of weir has the sides of the notch sloped at one horizontal to four vertical, and is used to measure water flow in open channels, especially streams and rivers?

Triangular weir

Rectangular weir

Cipolletti weir

Circular weir

Solution:

What is the correct formula for the efficiency of a hydraulic press? (Where W = Weight lifted by the ram, P = Force applied on the plunger, A = Area of the ram, and a = Area of the plunger)

W/P * A/P

W/P * a/A

W/P * A/a

All of the above can be used

Solution:

A cube of side 50 mm is placed at the bottom of an empty container on one of its faces. Liquid is now poured into the container. Find the minimum height to which the liquid needs to be poured for the cube to just lift up, in cm.

Given: Density of cube material = 750 kg/m³, Density of liquid = 998 kg/m³

3.757

37.57

375.7

0.0375

Solution:

A student wants to find the absolute pressure of water at a point below the surface of water. He has a barometer and a manometer pressure gauge. The barometer reads 1.3152 bar, whereas the manometer pressure gauge reads 0.3152 bar. What is the absolute pressure? (Assume that pressure at one end of the manometer is atmospheric.)

1 bar

1.6304 bar

0.3152 bar

1.3152 bar

Fluid-mechanics Questions Set 6:

To find the capillary rise in a glass tube, which of the following parameters is required?

Solution:

The sum of velocity head, pressure head, and datum head is known as the:

Solution:

If a fluid is flowing from a pipe having diameter of 1 m and average velocity of 2 m/s, then find the discharge from that pipe.

Solution:

A uniform body of size 4 m long, 2.5 m wide, and 1.5 m deep floats in water. What is the weight of the body if the depth of immersion is 1 m?

Solution:

In a tidal model, the horizontal scale ratio is 1/750 and the vertical scale is 1/75. The model period (in minutes), corresponding to a prototype period of 18 hours, would be

Solution:

What is the correct parameter for the Stream function?

Solution:

Which type of weir has the sides of the notch sloped at one horizontal to four vertical, and is used to measure water flow in open channels, especially streams and rivers?

Solution:

What is the correct formula for the efficiency of a hydraulic press? (Where W = Weight lifted by the ram, P = Force applied on the plunger, A = Area of the ram, and a = Area of the plunger)

Solution:

Solution:

Solution:

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