ECAT Pre Computer Science Chapter 6 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 6 Fluid Dynamics

Try The MCQ's Test For ECAT Physics Chapter 6 Fluid Dynamics

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ECAT Physics Chapter 6 Fluid Dynamics

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Question # 1

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

Question # 2

The body will move with terminal velocity when it acquires

Question # 3

The terminal velocity of a small size spherical body of radius R moving in a fluid varies as

Question # 4

Fluid A is more viscous than fluid B. While flowing through a pipe of the same dimensions and material which fluid takes longer to travel at 25°C?

Question # 5

The fluid which is incompressible and non viscous is called

Question # 6

When the different streamlines cannot cross each other, then this condition is known as

Question # 7

At the starting point of the free fall motion of an object, its acceleration will be

Question # 8

Drag force increases if speed of the object moving through the fluid:

Question # 9

The velocity of falling raindrops attains limited value because of

Question # 10

In a normal healthy person the value of diastolic pressure is

Question # 11

A person standing near the track of a fast moving train has tendency to fall towards it because of

Question # 12

Bernoulli's equation is based upon law of conversation

Question # 13

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

Question # 14

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

Question # 15

What is another name for laminar flow?

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 0.10 cm can be written as:
A. 1.0 x 10-2m
B. 1.0 x 10-3cm
C. 1.0 x 10-4cm
D. 1. x 10-4m
2 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
A. 1 cm
B. 2 cm
C. 8 cm
D. None
3 One torr is equal to
A. 13.33 N/m2
B. 760 N/m2
C. 760 mm Hg
D. 133.3 N/m2
4 The analysis of fluid motion becomes simplified by using
A. law of conservation
B. law of conservation of energy
C. both of them
D. none of them
5 Unit of viscosity is:
A. Kg m-1sec-1
B. N s m-2
C. J s m-3
D. All of these
6 Terminal velocity is the maximum velocity attained by a spherical droplet when the drag force______the weight of droplet:
A. Is smaller than
B. Is greater than
C. Becomes equal to
D. None of these
7 The dimensions of viscosity are:
A. M2L-1T-2
B. M-1L1T-1
C. M-1L-1T
D. ML-1T-1
8 The density of blood is nearly equal to that of
A. mercury
B. sodium
C. water
D. honey
9 The equation of continuity is
A. A1A2 = V1V2
B. A1/V1 =A2/V2
C. V1/A1=V2/A2
D. A1V1 =A2V2
10 Substances that flow easily have
A. large coefficient of viscosity
B. small coefficient of viscosity
C. either of them
D. none of them

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