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

Fluid friction is _____ the friction between two solid surfaces:

Question # 2

The maximum drag force on a falling sphere is 9.8 N, it weight is

Question # 3

According to slok's law, drag force depends on

Question # 4

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

Question # 5

In Bernoulli's theorem the relation between velocity and pressure is

Question # 6

The SI unit of viscosity is

Question # 7

Two copper balls of 1 cm and 2 cm in diameter are simultaneously dropped in the same viscous medium. The terminal velocity of bigger ball is:

Question # 8

Bernoulli's equation is applicable for

Question # 9

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

Question # 10

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

Question # 11

Fog droplets are suspended in air when their weight is balanced by:

Question # 12

N s m-2is unit of:

Question # 13

With increase of temperature, the viscosity of liquid and gases

Question # 14

In a normal healthy person the value of systolic pressure is

Question # 15

A body is moving through a viscous medium eventually comes to rest because of:

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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 Which of the following options correctly states the equation of continuity for an ideal fluid?
A. A1A2= V1V2
B. A1/A2= V2/V1
C. A1/A2= V1/V2
D. none of the above
3 The unit of viscosity is SI system is:
A. Kg-1m sec-1
B. Kgm-1 sec-1
C. Kg-1m-1 sec
D. None of these
4 Bernoulli's equation is important in the field of
A. Electrical circuit
B. Magnetism
C. Photoelectric effect
D. Flow of fluids
5 If the flow is incompressible and the flow is steady then the mass of the fluid through the pipe
A. increases
B. decreases
C. becomes zero
D. is conserved
6 The body will move with terminal velocity when it acquires
A. minimum speed
B. zero speed
C. maximum speed
D. none of them
7 A container has a small hole in the bottom. Air can go through this hole,but water cannot. This can be best explained by the statement that
A. water contains hydrogen atoms, air does not
B. water molecules are smaller than molecules in the air
C. water molecules are smaller than molecules in the air
D. surface tension of the water prevents it from
8 One torr is equal to
A. 13.33 N/m2
B. 760 N/m2
C. 760 mm Hg
D. 133.3 N/m2
9 At high speed, fluid friction _____ and fuel consumption ___,:
A. Increases, decreases
B. Increases, increases
C. Decreases, increases
D. None of these
10 Viscosity of water is ______ that of air but ___ that of plasma.
A. More, more
B. Less, more
C. Less, less
D. More, less

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