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

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

Question # 2

The equation of continuity is

Question # 3

The un-steady streamline flow is called

Question # 4

Fluids have three types of energies. The Bernoulli's equation combines those energies.which of the following is one of the three enrgies possessed by a fluid?

Question # 5

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

Question # 6

At high altitude the blood oozes out of the nose and ear because

Question # 7

The mass of fluid passing through any cross-section per unit time is called

Question # 8

A body is floating in a liquid. The up thrust on the body is

Question # 9

0.10 cm can be written as:

Question # 10

Ball pen functions on the principle of

Question # 11

Bernoulli's equation is important in the field of

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

Which of the following is a characteristic of an ideal fluid?

Question # 14

Deep water almost runs still when surface water flow in rivers. What does it explains

Question # 15

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

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 A body is floating in a liquid. The up thrust on the body is
A. Equal to weight of liquid displaced
B. Zero
C. Less than the weight of liquid displaced
D. Weight of body-weight of liquid displaced
2 The pressure will be low where the speed of the fluid is
A. Zero
B. High
C. Low
D. Constant
3 The irregular and unsteady flow of the fluid is called
A. turbulent flow
B. steady flow
C. either of them
D. both of them
4 The study of fluid in motion basically involves law of conservation of:
A. Mass
B. Energy
C. Change
D. Both A and C
5 The product of cross-sectional area of the pipe and the fluid speed at any point along the pipe is called
A. constant rate
B. volume rate
C. flow rate
D. steady rate
6 A flowing liquid possess
A. K.E
B. P.E
C. Pressure Energy
D. All
7 Two copper balls of 1 cm and 2 cm in diameter are simultaneously dropped in the same viscous medium. The terminal velocity of bigger ball is:
A. Not affected due to its size
B. Twice that of small size ball
C. Four times that of small size ball
D. 1/4th of that of small size ball
8 If one of the pipes has a much smaller diameter than the other and are placed horizontally then form both sides of Bernoulli's equation, we can drop the term
A. P
B. 1/2 fv2
C. pgh
D. none of them
9 The unit of viscosity is SI system is:
A. Kg-1m sec-1
B. Kgm-1 sec-1
C. Kg-1m-1 sec
D. None of these
10 A massive object falls through a fluid:
A. Faster
B. Slower
C. Slowest
D. None

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