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

Question # 2

The fluid is incompressible, if itsdensity is

Question # 3

Liquids and gasses have

Question # 4

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 # 5

Blood has a density

Question # 6

A massive object falls through a fluid:

Question # 7

Blood pressure is measured in torr. Which of the following units could belong to torr?

Question # 8

According to the Bernoulli's theorem the pressure velocity are

Question # 9

If v is the velocity of flow of liquid through a tube of area of cross-section A, then according to equation of continuity

Question # 10

A flowing liquid possess

Question # 11

Rate of flow can be expressed in

Question # 12

When the droplet moves with terminal velocity in a fluid, the net force acting on the droplet is:

Question # 13

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

Question # 14

The property of fluids due to which they resist their own flow is called:

Question # 15

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?

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 The equation of continuity is
A. A1A2 = V1V2
B. A1/V1 =A2/V2
C. V1/A1=V2/A2
D. A1V1 =A2V2
2 Where the streamlines are very far apart from each other, the pressure will be
A. low
B. zero
C. high
D. all of them
3 Blood has a density
A. Equal to water
B. Greater then water
C. Lesser then water
D. None of these
4 Drag force increases if speed of the object moving through the fluid:
A. Increases
B. Decreases
C. Remains constant
D. None of these
5 The body will move with terminal velocity when it acquires
A. minimum speed
B. zero speed
C. maximum speed
D. none of them
6 Bernoulli's equation is based upon law of conservation
A. Mass
B. Momentum
C. Energy
D. None of these
7 Blood pressure is measured in torr. Which of the following units could belong to torr?
A. N m-1
B. N m-2
C. N m
D. N-1m-2
8 The terminal velocity of water droplet of radius 1 x 10-4m and desity 1000 kg m-3descending through air of viscosity 19 x 10-6kg. m-1 s-1 is
A. 2.5 ms-1
B. 3.2 ms-1
C. 4.3 ms-1
D. 1.1 ms-1
9 The irregular and unsteady flow of the fluid is called
A. turbulent flow
B. steady flow
C. either of them
D. both of them
10 The law of conservation of mass gives us the
A. equation of continuity
B. Bernoulli's theorem
C. both of them
D. none of them

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