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

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

Question # 2

The internal pressure of the blood is

Question # 3

In case of streamed lined flow of liquid, the loss of energy is

Question # 4

The pressure will change in the pipe, as the fluid moves through that pipe of varying

Question # 5

According to slok's law, drag force depends on

Question # 6

The equation of continuity is

Question # 7

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 # 8

Blood pressure is measured by the instrument

Question # 9

The product of cross-sectional area of the pipe and the fluid speed at any point along the pipe is called

Question # 10

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

Question # 11

Viscosity of water is ______ that of air but ___ that of plasma.

Question # 12

In a container having water filled up to a height h, a hole is made in the bottom. The velocity of water flowing out of the hole is

Question # 13

The velocity of falling raindrops attains limited value because of

Question # 14

If v is the velocity of flow of liquid through a tube of area of cross-section A, then according to equation of continuity

Question # 15

According to the Bernoulli's theorem the pressure velocity are

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 Under normal circumstances, the volume of blood is sufficient to keep the vessels
A. flatted for all times
B. inflated for all times
C. inflated for small times
D. none of them
2 The effect of friction between different layers of a flowing fluid is described in terms of
A. motion of fluid
B. nature of fluid
C. colour of fluid
D. viscosity of fluid
3 The smooth or steady streamline flow is known as
A. laminar flow
B. turbulent flow
C. both of them
D. none of them
4 Two water pipes of diameters 4 cm and 8 cm are connected with a supply line. The velocity of flow of water in the pipe 4 cm diameter is
A. 1/4 times
B. 4 times
C. Twice
D. 1/2 of 8 cm diameter pipe
5 Machine parts are jammed due to:
A. Increasing in viscosity of lubricant
B. Decreasing in viscosity of lubricant
C. Decreasing in surface tension of lubricant
D. None of these
6 The pressure will be low where the speed of the fluid is
A. Zero
B. High
C. Low
D. Constant
7 Bernoulli's equation is based upon law of conversation of
A. mass
B. momentum
C. Energy
D. None
8 The body passing a viscous medium affected by:
A. One force only
B. Two forces only
C. Four forces
D. None of these
9 The study of fluid in motion basically involves law of conservation of:
A. Mass
B. Energy
C. Change
D. Both A and C
10 Pressure exerted by a gas on the walls of its container in due to
A. adhesion between the gas molecules and the container
B. cohesion between the gas molecules and the container
C. collision between the gas molecules and the container
D. surface tension of the gas

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