Fluid Mechanics and Hydraulic Machines (3141906) MCQs

MCQs of Fluids and Their Properties

Showing 1 to 10 out of 30 Questions
1.
The mass per unit volume of a liquid at a standard temperature and pressure is called
(a) specific weight
(b) mass density
(c) specific gravity
(d) none of these
Answer:

Option (b)

2.
The weight per unit volume of a liquid at standard temperature and pressure is called
(a) specific weight
(b) mass density
(c) specific gravity
(d) none of these
Answer:

Option (a)

3.
The specific weight of water in S.I. unit is taken as
(a) 9.81 kN/m3
(b) 9.81×103 N/m3
(c) 9.81×10-6 N/mm3
(d) any of these
Answer:

Option (d)

4.
The ratio of specific weight of a liquid to the specific weight of pure water at a standard temperature is called
(a) density of liquid
(b) specific gravity of liquid
(c) compressibility of liquid
(d) surface tension of liquid
Answer:

Option (b)

5.
The specific gravity of water is taken as
(a) 0.001
(b) 0.01
(c) 0.1
(d) 1
Answer:

Option (d)

6.
The specific weight of sea water is ………….. that of the pure water.
(a) same as
(b) less than
(c) more than
(d) none of these
Answer:

Option (c)

7.
The mass of 2.5 m3 of a certain liquid is 2 tonnes. Its mass density is ………… kg/m3.
(a) 200
(b) 400
(c) 600
(d) 800
Answer:

Option (d)

8.
The specific gravity of oil whose specific weight is 7.85 kN/m3, is
(a) 0.8
(b) 1
(c) 1.2
(d) 1.6
Answer:

Option (a)

9.
A vessel of 4 m3 contains oil that weighs 30 kN. The specific weight of the oil is …..kN/m3.
(a) 4.5
(b) 6
(c) 7.5
(d) 10
Answer:

Option (c)

10.
The property of a liquid which offers resistance to the movement of one layer of liquid over another adjacent of liquid is called
(a) surface tension
(b) compressibility
(c) capillarity
(d) viscosity
Answer:

Option (d)

Showing 1 to 10 out of 30 Questions