ECAT Pre Engineering Physics Chapter 6 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 6 Fluid Dynamics

Try The MCQ's Test For Physics ECAT Pre Engineering Chapter 6 Fluid Dynamics

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Physics ECAT Pre Engineering Chapter 6 Fluid Dynamics

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Question # 1

What is another name for laminar flow?

Question # 2

At high speed, fluid friction _____ and fuel consumption ___,:

Question # 3

A body is moving through a viscous medium eventually comes to rest because of:

Question # 4

Surface tension of water is due to

Question # 5

The study of fluid in motion basically involves law of conservation of:

Question # 6

Bernoulli's equation is based upon law of conversation

Question # 7

Glycerin has viscosity _____ the viscosity of water:

Question # 8

In Bernoulli's theorem the relation between velocity and pressure is

Question # 9

The fluid which is incompressible and non viscous is called

Question # 10

Substances that flow easily have

Question # 11

The _____ viscous the medium is _____, is the value of terminal velocity of the droplet:

Question # 12

If water rises 4 cm in a long, thin tube because of capillary action, then, under corresponding conditions of use, the rise (in the tube) of a liquid whose density is 2 g/cm2will be

Question # 13

Ball pen functions on the principle of

Question # 14

The body will move with terminal velocity when it acquires

Question # 15

When the different streamlines cannot cross each other, then this condition is known as

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 The term Brownian movement refers to
A. irregular motions of small particles suspended in a fluid
B. convection currents in a liquid or gas
C. convection currents in a gas but not in a liquid
D. the stretching of a body beyond its elastic limit
2 Viscosity of water is ______ that of air but ___ that of plasma.
A. More, more
B. Less, more
C. Less, less
D. More, less
3 Fire fighters have jet attached to the head of their water pipes in order to
A. Increase the mass of water flowing per second
B. Increase the velocity of water flowing out
C. Increase the volume of water flowing per second
D. Avoid wastage of water
4 Blood pressure is measured in torr. Which of the following units could belong to torr?
A. N m-1
B. N m-2
C. N m
D. N-1m-2
5 At low speeds, the drag force is
A. proportional to speed
B. inversely proportional to speed
C. not simply proportional to speed
D. none of them
6 Drag force increases if speed of the object moving through the fluid:
A. Increases
B. Decreases
C. Remains constant
D. None of these
7 Rate of flow can be expressed in
A. litre/sec
B. litre-sec
C. sec/litre
D. sec/litre-m
8 When a fluid is in motion, its flow can be considered as
A. turbulent
B. streamline
C. either or them
D. neither of them
9 The density of blood is nearly equal to that of
A. mercury
B. sodium
C. water
D. honey
10 A massive object falls through a fluid:
A. Faster
B. Slower
C. Slowest
D. None

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