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

Surface tension of water is reduced by adding

Question # 2

The velocity of falling raindrops attains limited value because of

Question # 3

Where the streamlines are very close to each other, the pressure will be

Question # 4

The value of viscosity of a fluid is dependent on (at constant temperature)

Question # 5

When there is no internal frictional forces between the adjacent layers of fluid, then the fluid is called

Question # 6

How much force is required to slide one layer of the liquid over the other layer is measured by

Question # 7

When each particle of the fluid moves along a smoth path, this path is known as

Question # 8

Blood is an

Question # 9

According to the Bernoulli's theorem the pressure velocity are

Question # 10

When a fluid is in motion, its flow can be considered as

Question # 11

The SI unit of viscosity is

Question # 12

The unit of viscosity is SI system is:

Question # 13

In deriving the Bernoulli's equation, we assume that the fluid is

Question # 14

The law of conservation of mass gives us the

Question # 15

The pressure will be low where the speed of the fluid is

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 If the flow is incompressible and the flow is steady then the mass of the fluid through the pipe
A. increases
B. decreases
C. becomes zero
D. is conserved
2 In a normal healthy person the value of systolic pressure is
A. 75 torr
B. 80 torr
C. 120 torr
D. all of them
3 In case of streamed lined flow of liquid, the loss of energy is
A. Maximum
B. Minimum
C. Infinite
D. equal to what is in turbulent flow
4 At high altitude the blood oozes out of the nose and ear because
A. The blood pressure increase at high altitudes
B. The percentage of oxygen in the air increase
C. The atmospheric pressure decrease there
D. The density of blood decrease at high altitudes
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 Bernoulli's equation is applicable for
A. turbulent flow
B. streamline flow
C. both (a) and (b)
D. all kinds of flows
7 Rate of flow can be expressed in
A. litre/sec
B. litre-sec
C. sec/litre
D. sec/litre-m
8 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
9 The SI unit of viscosity is
A. kg m-1s-1
B. kg ms-1
C. kg m-1s-2
D. kg m-1s
10 A massive object falls through a fluid:
A. Faster
B. Slower
C. Slowest
D. None

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