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

Which of the following options correctly states the equation of continuity for an ideal fluid?

Question # 2

Bernoulli's equation is based upon law of conversation of

Question # 3

The application of Bernoulli's equation is

Question # 4

The dimensions of viscosity are:

Question # 5

Blood is an

Question # 6

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

Question # 7

Deep water almost runs still when surface water flow in rivers. What does it explains

Question # 8

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

Question # 9

Viscosity is defined as

Question # 10

Stock's law holds for:

Question # 11

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

Question # 12

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

Question # 13

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

Question # 14

Two water pipes of diameters 4 cm and 8 cm are connected with a supply line. The velocity of flow of water in the pipe 4 cm diameter is

Question # 15

Rate of flow can be expressed in

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 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?
A. fluid B
B. fluid A
C. both take the same time
D. not possible to determine from given information
2 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
3 The application of Bernoulli's equation is
A. Torricelli's theorem
B. Venture relation
C. Binomial theorem
D. Both a and b
4 High speed meteors rushing through air reduces to ashes because of:
A. Force of gravity
B. High resistance of air
C. Drag force
D. None of these
5 Fluid friction is _____ the friction between two solid surfaces:
A. Greater than
B. Smaller than
C. Equal to
D. None of these
6 The body passing a viscous medium affected by:
A. One force only
B. Two forces only
C. Four forces
D. None of these
7 The velocity gained by the fluid in falling through the distance (h1 - h2) under the action of gravity is equal to the speed of the action of gravity is equal to the speed of the
A. orifices
B. efflux
C. fluid
D. none of them
8 A tube is tapered from 20 cm diameter to 2 cm diameter, the velocity at the first cross-section is 50 cm/s, then the velocity at the second cross-section is
A. 50 m/s
B. 20 m/s
C. 40 cm/s
D. 5 cm/s
9 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
10 The irregular and unsteady flow of the fluid is called
A. turbulent flow
B. steady flow
C. either of them
D. both of them

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