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

In a normal healthy person the value of diastolic pressure is

Question # 2

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

Question # 3

The SI unit of viscosity is

Question # 4

The un-steady streamline flow is called

Question # 5

The internal pressure of the blood is

Question # 6

The fluid is incompressible, if itsdensity is

Question # 7

Rate of flow can be expressed in

Question # 8

A tube tapers from 20 cm diameter to 2 cm, the velocity at first cross-section is 50 ms-1then velocity at second cross-section is

Question # 9

Pressure exerted by a gas on the walls of its container in due to

Question # 10

A fluid at a certain point has 50 J of potential energy per unit volume, 75 J of kinetic energy per unit volume,and 35 J of pressure energy per unit volume. the total energy of the fluid is

Question # 11

Bernoulli's equation is important in the field of

Question # 12

Which of the following has the greatest coefficient of viscosity?

Question # 13

N s m-2is unit of:

Question # 14

At the starting point of the free fall motion of an object, its acceleration will be

Question # 15

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

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 Ball pen functions on the principle of
A. Viscosity
B. Boyle's law
C. Gravitational force
D. Surface tnesion
2 A tube tapers from 20 cm diameter to 2 cm, the velocity at first cross-section is 50 ms-1then velocity at second cross-section is
A. 5000 cms-1
B. 500 cms-1
C. 50 cms-1
D. 0.5 cm/s
3 Internal friction of fluid is called
A. Surface tension
B. Viscosity
C. Resistance
D. Cohesive force
4 Substances that flow easily have
A. large coefficient of viscosity
B. small coefficient of viscosity
C. either of them
D. none of them
5 Viscosity is defined as
A. the friction between fluid and its container's walls
B. the internal friction between two layers of fluid
C. the resistance to flow a fluid experiences
D. the extent to which outside factors effect the fluid's flow
6 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
7 Rate of flow can be expressed in
A. litre/sec
B. litre-sec
C. sec/litre
D. sec/litre-m
8 The direction of the streamlines is the same as the direction of the
A. force
B. torque
C. velocity
D. weight
9 Matter is made up of very tiny particles called
A. Atoms
B. Molecules
C. Ions
D. None of these
10 At the starting point of the free fall motion of an object, its acceleration will be
A. maximum
B. minimum
C. zero
D. none of them

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