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Fluid-mechanics Questions Set 13:

Quiz Mode

What is the standard symbol for the Archimedes number?

Solution:

The discharge coefficient (Cd) of an orifice meter is:

> 1

> the Cd of a venturimeter

< the Cd of a venturimeter

= the Cd of a venturimeter

Solution:

Minor losses in a pipe system occur due to:

Sudden contraction in the pipe

Sudden enlargement in the pipe

Bends in the pipe

All of the above

Solution:

Determine the absolute viscosity of air at a temperature of 5 degrees Celsius.

33 × 10^-3 kg/m

17.4 × 10^5 kg/m

1.74 × 10^-5 kg/m

33 × 10^-5 kg/m

Solution:

The velocity vector in a fluid is given as V = 7x⁵ + 4y² + 3z (in metre/sec). What is the acceleration of it at the point (1, 3, 5)?

61 m/s²

62 m/s²

59 m/s²

63 m/s²

Solution:

Calculate the bottom width per channel required to carry a discharge of 25 m³/s as a critical flow at a depth of 1.5 m when the channel section is rectangular.

3.6 m

5.32 m

2.8 m

4.34 m

Solution:

If for a two-dimensional potential flow, the velocity potential is given by phi = 4x * (3y - 4) , determine the velocity at the point (2, 3). Determine the stream function at this point also.

24.2

32.2

31.24

42.4

Solution:

A glass tube of internal diameter 3 mm is immersed in mercury. The angle of contact of mercury with glass is 130° and the surface tension of the liquid is 0.48 N/m. The drop in the capillary tube is:

4 mm

3.8 mm

3.6 mm

3 mm

Solution:

What is the pressure difference between the inside and outside of an air bubble with a diameter of 0.006 mm, given that the surface tension at the air-water interface is 0.072 N/m?

41.14 N/m²

41.14 kN/m²

4,114 kN/m²

4.11 kN/m²

Solution:

A rectangular plate 1.75 m × 4.0 m is immersed in oil of specific gravity 0.85 with the 1.75 m side horizontal and just at the water surface. The plane of the plate makes an angle of 30° with the horizontal. Determine the pressure force on one side of the plate.

58.31 kN

29.15 kN

65.31 kN

33.51 kN

Fluid-mechanics Questions Set 13:

What is the standard symbol for the Archimedes number?

Solution:

The discharge coefficient (Cd) of an orifice meter is:

Solution:

Minor losses in a pipe system occur due to:

Solution:

Determine the absolute viscosity of air at a temperature of 5 degrees Celsius.

Solution:

The velocity vector in a fluid is given as V = 7x⁵ + 4y² + 3z (in metre/sec). What is the acceleration of it at the point (1, 3, 5)?

Solution:

Calculate the bottom width per channel required to carry a discharge of 25 m³/s as a critical flow at a depth of 1.5 m when the channel section is rectangular.

Solution:

If for a two-dimensional potential flow, the velocity potential is given by phi = 4x * (3y - 4) , determine the velocity at the point (2, 3). Determine the stream function at this point also.

Solution:

A glass tube of internal diameter 3 mm is immersed in mercury. The angle of contact of mercury with glass is 130° and the surface tension of the liquid is 0.48 N/m. The drop in the capillary tube is:

Solution:

What is the pressure difference between the inside and outside of an air bubble with a diameter of 0.006 mm, given that the surface tension at the air-water interface is 0.072 N/m?

Solution:

A rectangular plate 1.75 m × 4.0 m is immersed in oil of specific gravity 0.85 with the 1.75 m side horizontal and just at the water surface. The plane of the plate makes an angle of 30° with the horizontal. Determine the pressure force on one side of the plate.

Solution:

Related Question Sets:

Related Topics:

Fluid-mechanics Questions Set 13:

What is the standard symbol for the Archimedes number?

Solution:

The discharge coefficient (Cd) of an orifice meter is:

Solution:

Minor losses in a pipe system occur due to:

Solution:

Determine the absolute viscosity of air at a temperature of 5 degrees Celsius.

Solution:

The velocity vector in a fluid is given as V = 7x⁵ + 4y² + 3z (in metre/sec). What is the acceleration of it at the point (1, 3, 5)?

Solution:

Calculate the bottom width per channel required to carry a discharge of 25 m3/s as a critical flow at a depth of 1.5 m when the channel section is rectangular.

Solution:

If for a two-dimensional potential flow, the velocity potential is given by phi = 4x * (3y - 4) , determine the velocity at the point (2, 3). Determine the stream function at this point also.

Solution:

A glass tube of internal diameter 3 mm is immersed in mercury. The angle of contact of mercury with glass is 130° and the surface tension of the liquid is 0.48 N/m. The drop in the capillary tube is:

Solution:

What is the pressure difference between the inside and outside of an air bubble with a diameter of 0.006 mm, given that the surface tension at the air-water interface is 0.072 N/m?

Solution:

A rectangular plate 1.75 m × 4.0 m is immersed in oil of specific gravity 0.85 with the 1.75 m side horizontal and just at the water surface. The plane of the plate makes an angle of 30° with the horizontal. Determine the pressure force on one side of the plate.

Solution:

Related Question Sets:

Related Topics:

Calculate the bottom width per channel required to carry a discharge of 25 m³/s as a critical flow at a depth of 1.5 m when the channel section is rectangular.