Fluid Mechanics & Hydraulics (3140611) MCQs

MCQs of Fluid Statics

Showing 11 to 20 out of 32 Questions
1 2 3 4
11.
When a body is placed over a liquid, it will sink down if
(a) gravitational force is equal to the upthrust of the liquid
(b) gravitational force is less than the upthrust of the liquid
(c) gravitational force is more than the upthrust of the liquid
(d) none of the above
Answer:

Option (c)

12.
When a body is placed over a liquid, it will float if
(a) gravitational force is equal to the upthrust of the liquid
(b) gravitational force is less than the upthrust of the liquid
(c) gravitational force is more than the upthrust of the liquid
(d) none of the above
Answer:

Option (b)

13.
When a body is immersed wholly or partially in a liquid, it is lifted up by a force equal to weight of liquid displaced by the body. This statement is called
(a) Pascal's law
(b) Archimede’s principle
(c) Principle of floatation
(d) Bernoulli’s theorem
Answer:

Option (b)

14.
The force of buoyancy is always……the weight of the liquid displaced by the body.
(a) equal to
(b) less than
(c) more than
(d) none of the above
Answer:

Option (a)

15.
The body will float if the force of buoyancy is…………. the weight of the liquid displaced.
(a) equal to
(b) less than
(c) more than
(d) none of the above
Answer:

Option (c)

16.
The body will sink down if the force of buoyancy is……the weight of the liquid.
(a) equal to
(b) less than
(c) more than
(d) none of the above
Answer:

Option (b)

17.
The centre of gravity of the volume of the liquid displaced is called
(a) centre of pressure
(b) centre of buoyancy
(c) metacentre
(d) none of the above
Answer:

Option (b)

18.
The buoyancy depends upon the
(a) weight of the liquid displaced
(b) pressure with which the liquid is
(c) viscosity of the liquid
(d) compressibility of the liquid
Answer:

Option (a)

19.
The metacentric heights of two floating bodies A and B are 1 m and 1.5 m respectively Select the correct statement.
(a) The bodies A and B have equal stability
(b) The body A is more stable than body B
(c) The body B is more stable than body A
(d) The bodies A and B are unstable
Answer:

Option (c)

20.
If a body floating in a liquid return back to its original position, when given a small angular displacement, the body is said to be in
(a) neutral equilibrium
(b) stable equilibrium
(c) unstable equilibrium
(d) none of these
Answer:

Option (b)

Showing 11 to 20 out of 32 Questions
1 2 3 4