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

The analysis of fluid motion becomes simplified by using

Question # 2

Substances that flow easily have

Question # 3

A device used to measure the speed of liquid flow is known as

Question # 4

The resistance offered by a fluid to a solid moving inside it is called:

Question # 5

If the flow is incompressible and the flow is steady then the mass of the fluid through the pipe

Question # 6

The direction of the streamlines is the same as the direction of the

Question # 7

The smooth or steady streamline flow is known as

Question # 8

Fire fighters have jet attached to the head of their water pipes in order to

Question # 9

N s m-2is unit of:

Question # 10

According to the Bernoulli's equation, where the speed of the fluid is high, the pressure will be

Question # 11

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

Question # 12

According to the Bernoulli's theorem the pressure velocity are

Question # 13

Density of fluid is defined as:

Question # 14

The body will move with terminal velocity when it acquires

Question # 15

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

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 A water hose with an internal diameter of 20 mm at the outlet discharges 30 kg of water in 60 s. What is water speed at the outlet if density of water is 1000 kg/m3during its steady flow
A. 1.3 m/s
B. 1.6 m/s
C. 1.9 m/s
D. 2.2 m/s
2 Density of fluid is defined as:
A. Its volume to mass ratio
B. Product of volume and mass
C. Its mass of volume ratio
D. None of these
3 Which of the following is a characteristic of an ideal fluid?
A. it is non-viscous
B. it is incompressible
C. it's motion is steady
D. all of the above
4 Surface tension of water is reduced by adding
A. Detergents
B. Camphor
C. Plastic
D. Both A and B
5 The density of water is 103kg/m3. The water pressure on a submarine is 2.0 x 107N/m2. The depth of the submarine below the surface of the water, in maters, is approximately
A. 200 m
B. 11000 m
C. 2000 m
D. 8000 m
6 Rate of flow can be expressed in
A. litre/sec
B. litre-sec
C. sec/litre
D. sec/litre-m
7 Substances that do not flow easily have
A. large coefficient of viscosity
B. small coefficient of viscosity
C. either of them
D. none of them
8 The rain drop falling from the sky reach the ground with
A. Constant terminal velocity
B. Constant gravitational acceleration
C. Variable acceleration
D. acceleration greater than g
9 The resistance offered by a fluid to a solid moving inside it is called:
A. Drag force
B. Surface force
C. Viscosity
D. None of these
10 At the starting point of the free fall motion of an object, its acceleration will be
A. maximum
B. minimum
C. zero
D. none of them

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