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 SI unit of viscosity is

Question # 2

The velocity of falling raindrops attains limited value because of

Question # 3

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

Question # 4

When the speed of a body in a fluid increases then the drag force

Question # 5

Blood is an

Question # 6

Liquids and gasses have

Question # 7

The unit of viscosity is SI system is:

Question # 8

The instrument which detects the instant at which external pressure becomes equal to the systolic pressure is

Question # 9

With the increase of temperature viscosity

Question # 10

The drag force acting on a spherical droplet of radius 10-5m moving with a velocity of 1 cm/sec in a fluid of velocity 5.31 x 10-7m/sec. The units comes out to be:

Question # 11

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

Question # 12

The force exerted by the fluid in a hydraulic pump on the piston is 10 cm2, the fluid pressure on the piston is, in N/cm2

Question # 13

Matter is made up of very tiny particles called

Question # 14

A tube tapers from 20 cm diameter to 2 cm, the velocity at first cross-section is 50 ms-1then velocity at second cross-section is

Question # 15

The blood pressure of a person

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 What are the SI base units of the coefficient of viscosity
A. Kg m s-2
B. kgm2 s-2
C. Kg m s-1
D. kg m-1s-1
2 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
A. Independent of h
B. Proportional to h1/2
C. Proportional to h
D. Proportional to h2
3 Bernoulli's equation is important in the field of
A. Electrical circuit
B. Magnetism
C. Photoelectric effect
D. Flow of fluids
4 A body is moving through a viscous medium eventually comes to rest because of:
A. Force of gravity
B. Force of friction
C. Its weight
D. Both A and C
5 The application of Bernoulli's equation is
A. Torricelli's theorem
B. Venture relation
C. Binomial theorem
D. Both a and b
6 A flowing liquid possess
A. K.E
B. P.E
C. Pressure Energy
D. All
7 Bernoulli's equation is based upon law of conservation
A. Mass
B. Momentum
C. Energy
D. None of these
8 The study of fluid in motion basically involves law of conservation of:
A. Mass
B. Energy
C. Change
D. Both A and C
9 According to the Bernoulli's equation, where the speed of the fluid is high, the pressure will be
A. low
B. zero
C. high
D. all of them
10 The mass of fluid passing through any cross-section per unit time is called
A. electric flux
B. magnetic flux
C. mass flux
D. none of them

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