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

At low speeds, the drag force is

Question # 2

With the increase of temperature viscosity

Question # 3

Above a certain velocity of a fluid is called

Question # 4

The blood pressure of a person

Question # 5

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 # 6

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

Question # 7

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

Question # 8

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

Question # 9

Blood is an

Question # 10

Under normal circumstances, the volume of blood is sufficient to keep the vessels

Question # 11

Bernoulli's equation is applicable for

Question # 12

When there is no internal frictional forces between the adjacent layers of fluid, then the fluid is called

Question # 13

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

Question # 14

At high speed, fluid friction _____ and fuel consumption ___,:

Question # 15

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

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 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
2 Glycerin has viscosity _____ the viscosity of water:
A. More than
B. Equal to
C. Less than
D. None of these
3 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
4 A high concentration of red blood cells increases its viscosity from
A. 3 - 5 times that of mercury
B. 5 - 8 times that of mercury
C. 3 - 5 times that of water
D. 5 - 8 times that of water
5 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
6 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
A. 20
B. 200
C. 2000
D. 20,000
7 With the increase of temperature viscosity
A. Increase
B. Decrease
C. Remains same
D. Doubles
8 In a normal healthy person the value of systolic pressure is
A. 75 torr
B. 80 torr
C. 120 torr
D. all of them
9 Unit of viscosity is:
A. Kg m-1sec-1
B. N s m-2
C. J s m-3
D. All of these
10 The term Brownian movement refers to
A. irregular motions of small particles suspended in a fluid
B. convection currents in a liquid or gas
C. convection currents in a gas but not in a liquid
D. the stretching of a body beyond its elastic limit

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