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 blood pressure of a person

Question # 2

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 # 3

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

Question # 4

The velocity of falling raindrops attains limited value because of

Question # 5

The pressure will be low where the speed of the fluid is

Question # 6

The product of cross-sectional area of the pipe and the fluid speed at any pint along the pipe is

Question # 7

Substances that do not flow easily have

Question # 8

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

Question # 9

One torr is equal to

Question # 10

Stock's law holds for:

Question # 11

The fluid is incompressible, if itsdensity is

Question # 12

In deriving the Bernoulli's equation, we assume that the fluid is

Question # 13

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

Question # 14

The un-steady streamline flow is called

Question # 15

Bernoulli's equation is important in the field of

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 When the speed of a body in a fluid increases then the drag force
A. decreases
B. becomes zero
C. increases
D. non of them
2 Machine parts are jammed due to:
A. Increasing in viscosity of lubricant
B. Decreasing in viscosity of lubricant
C. Decreasing in surface tension of lubricant
D. None of these
3 The equation of continuity
A1V1= A2V2is for the flow of
A. an ideal fluid
B. an incompressible fluid
C. a non visconcous fluid
D. all of the above
4 According to the Bernoulli's theorem the pressure velocity are
A. equal to each other
B. proportional to each other
C. inversely proportional to each other
D. none of them
5 A flowing liquid possess
A. K.E
B. P.E
C. Pressure Energy
D. All
6 Deep water almost runs still when surface water flow in rivers. What does it explains
A. Magnus effect
B. Equation of continuity
C. Surface energy
D. Bernoulli's equation
7 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
8 The direction of the streamlines is the same as the direction of the
A. force
B. torque
C. velocity
D. weight
9 The un-steady streamline flow is called
A. laminar flow
B. turbulent flow
C. both of them
D. none of them
10 The value of viscosity of a fluid is dependent on (at constant temperature)
A. the fluid itself
B. the fluid and its container
C. anything in contact with the fluid
D. all of the above

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