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

Question # 2

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

Question # 3

When a water droplet falling freely through air, the drag force on water droplet increases with th

Question # 4

Fog droplets are suspended in air when their weight is balanced by:

Question # 5

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 # 6

Where the streamlines are very far apart from each other, the pressure will be

Question # 7

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

Question # 8

Substances that flow easily have

Question # 9

A massive object falls through a fluid:

Question # 10

The law of conservation of mass gives us the

Question # 11

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 # 12

The body will move with terminal velocity when it acquires

Question # 13

When weight of an object falling freely becomes equal to the drag force, then the body will move with

Question # 14

High speed meteors rushing through air reduces to ashes because of:

Question # 15

When a water droplet falls through air, the net force on it is

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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 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?
A. potential energy
B. pressure energy
C. strain energy
D. (a) and (b) only
3 The un-steady streamline flow is called
A. laminar flow
B. turbulent flow
C. both of them
D. none of them
4 The density of blood is nearly equal to that of
A. mercury
B. sodium
C. water
D. honey
5 In a normal healthy person the value of systolic pressure is
A. 75 torr
B. 80 torr
C. 120 torr
D. all of them
6 A fluid at a certain point has 50 J of potential energy per unit volume, 75 J of kinetic energy per unit volume,and 35 J of pressure energy per unit volume. the total energy of the fluid is
A. 125 J
B. 90 J
C. 160 J
D. 85 J
7 The velocity of falling raindrops attains limited value because of
A. Up thrust of air
B. Air currents of the earth atmosphere
C. Surface tension effect
D. Viscous force exerted by air
8 The maximum drag force on a falling sphere is 9.8 N, it weight is
A. 1 N
B. 9.8 N
C. 4.9 N
D. Cannot be calculated
9 A device used to measure the speed of liquid flow is known as
A. barometer
B. speedometer
C. sphygmomanometer
D. venture-meter
10 Ball pen functions on the principle of
A. Viscosity
B. Boyle's law
C. Gravitational force
D. Surface tnesion

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