set 1 MCQ Questions & Answers Detailed Explanation

Question : 1

The separation of cream from milk by churning is due to

a) Cohesive force

b) Centrifugal force

c) Gravitational force

d) None of the above

Question : 2

A liquid is flowing in a streamlined manner through a cylindrical pipe. Alongwith a section containing the axis of the pipe, the flow profile will be

a)

b)

c)

d)

Question : 3

In the figure below is shown the flow of the liquid through a horizontal pipe. Three tubes A, B and C are connected to the pipe. The radii of the tubes A, B and C at the junction are respectively 2 cm, 1 cm and 2 cms. It can be said that A B C

a) height of the liquid in the tube A and tube B is the same

b) the height of the liquid in the tube A is maximum

c) height of the liquid in all the three tubes is the same

d) height of the liquid in tube A and C is the same

Question : 4

Oil spreads on water surface because

a) Oil is less dense than water

b) Surface tension of oil is more than water

c) Oil is denser than water

d) Surface tension of oil is less than water

Question : 5

Fish can survive in a frozen lake because

a) Fish hibernate in ice

b) Water near the bottom does not freeze

c) Fish are warm blooded animals

d) Ice is a good conductor of heat

Question : 6

The bulk modulus for an incompressible liquid is

a) unity

b) zero

c) infinity

d) between 0 and 1