set 1 MCQ Questions & Answers Detailed Explanation

Question : 1

Construction of submarines is based on

a) Bernoulli's theorem

b) Archimede's principle

c) Pascal's law

d) Newton's laws

Question : 2

Two soap bubbles are held by a tube. What will happen ?

a) Air will not travel

b) Air will travel from bigger to smaller bubble

c) Air will travel through tube

d) Nothing can be said

Question : 3

For which one of the following capillarity is not the only reason?

a) Rising of underground water

b) Spread of water drop on a cotton cloth

c) Blotting of ink

d) Rising of water from the roots of a plant to its foliage

Question : 4

The lift of an air plane is based on

a) bernoulli’s theorem

b) Torricelli’s theorem

c) law of gravitation

d) conservation of linear momentum

Question : 5

A and B are two wires. The radius of A is twice that of B. They are stretched by the same load. Then the stress on B is

a) four times that on A

b) equal to that on A

c) two times that on A

d) half that on A

Question : 6

Water is flowing through a horizontal pipe line having a restriction. Then

a) pressure will be greater at the restriction.

b) pressure will be the same throughout the length of the pipe.

c) pressure will be greater in the wider portion.

d) None of these