Engineering :: Hydraulics and Fluid Mechanics

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11.

The mass of 2.5 m3 of a certain liquid is 2 tonnes. Its mass density is

A.	200 kg / m3	B.	400 kg / m3
C.	600 kg / m3	D.	800 kg / m3

12.

The specific gravity of an oil whose specific weight is 7.85 kN / m3, is

A.	0.8	B.	1
C.	1.2	D.	1.6

13.

A vessel of 4 m3 contains an oil which weighs 30 kN. The specific weight of the oil is

A.	4.5 kN / m3	B.	6 kN / m3
C.	7.5 kN / m3	D.	10 kN / m3

14.

The property of a liquid which offers resistance to the movement of one layer of liquid over another adjacent layer of liquid, is called

A.	surface tension	B.	compressibility
C.	capillarity	D.	viscosity

15.

Kinematic viscosity is the product of dynamic viscosity and the density of the liquid.

Yes

16.

The force per unit length is the unit of

A.	surface tension	B.	compressibility
C.	capillarity	D.	viscosity

17.

The variation in the volume of a liquid with the variation of pressure is called its

A.	surface tension	B.	compressibility
C.	capillarity	D.	viscosity

18.

The property of a liquid which enables into resist tensile stress is called its surface tension.

Agree

Disagree

19.

When a tube of smaller diameter is dipped in water, the water rises in the tube due to viscosity of water.

True

False

20.

When a tube of smaller diameter is dipped in water, the water rises in the tube with an upward

concave

convex