We have the best collection of Liquid State MCQs and answer with FREE PDF. These Liquid State MCQs will help you to prepare for any competitive exams like: NEET, AIIMS, JEE Mains, JEE Advance, IIT JEE, JIPMER and other Exams at all levels – you just have to practice regularly.
Liquid State MCQs
1. In a liquid, the force required to maintain the flow of layers is 5N, velocity gradient in du/dx, area of contact is 20m2. Then what is the value of viscosity?
a) 6.25 dz/du
b) 0.15 dz/du
c) 0.2 dz/du
d) 0.25 dz/du
Answer: 0.25 dz/du
2. Path in liquid in which layers do not meet each other is _______
a) laminar flow
b) tubular flow
c) viscosity
d) straight path
Answer: laminar flow
3. What is S.I. unit of Surface Tension?
a) Dyne/meter
b) Newton-meter
c) Newton/meter
d) Dyne-meter
Answer: Newton/meter
4. If the angle of contact between the liquid and container is 90 degrees then? (C is the cohesive and A is the Adhesive force)
a) C > A
b) C = A
c) C < A
d) C is not equal to A
Answer: C = A
5. A water drop is spherical in shape due to ____________
a) Viscosity
b) Poise
c) Surface tension
d) Reflection
Answer: Surface tension
6. The surface tension of ___________ at critical temperature.
a) one
b) zero
c) two
d) three
Answer: zero
7. Higher the viscosity, the slower the liquid flows.
a) True
b) False
Answer: True
8. What is the boiling point at pressure 1 atm known as?
a) Standard boiling point
b) Normal boiling point
c) Van der Waal boiling point
d) Saturated boiling point
Answer: Van der Waal boiling point
9. 1 poise = ____________
a) 0.1 kgm-1s-1
b) 1 kgm-1s-1
c) 10 kgm-1s-1
d) 100 kgm-1s-1
Answer: 0.1 kgm-1s-1
10. Viscosity of liquid _________ with rise in temperature.
a) Increases
b) Decreases
c) Remains constant
d) Is independent
Answer: Increases