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

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

Question # 2

A water hose with an internal diameter of 20 mm at the outlet discharges 30 kg of water in 60 s. What is water speed at the outlet if density of water is 1000 kg/m3during its steady flow

Question # 3

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

Question # 4

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

Question # 5

The study of fluid in motion basically involves law of conservation of:

Question # 6

Blood has a density

Question # 7

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

Question # 8

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

Question # 9

A person standing near the track of a fast moving train has tendency to fall towards it because of

Question # 10

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

Question # 11

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

Question # 12

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

Question # 13

When the speed of a body in a fluid increases then the drag force

Question # 14

The rain drop falling from the sky reach the ground with

Question # 15

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

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 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
2 Blood pressure is measured by the instrument
A. stethoscope
B. sphygmomanometer
C. barometer
D. none of them
3 Drag force increases if speed of the object moving through the fluid:
A. Increases
B. Decreases
C. Remains constant
D. None of these
4 The rain drop falling from the sky reach the ground with
A. Constant terminal velocity
B. Constant gravitational acceleration
C. Variable acceleration
D. acceleration greater than g
5 With the increase of temperature viscosity
A. Increase
B. Decrease
C. Remains same
D. Doubles
6 The fluid is incompressible, if itsdensity is
A. zero
B. constant
C. very high
D. very small
7 An object moving through a fluid experiences a retarding force called a
A. frictional force
B. terminal force
C. opposing force
D. drag force
8 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
9 The drag force acting on a spherical droplet of radius 10-5m moving with a velocity of 1 cm/sec in a fluid of velocity 5.31 x 10-7m/sec. The units comes out to be:
A. 10-16N
B. 10-14N
C. 10-12N
D. 10-10N
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
A. 125 J
B. 90 J
C. 160 J
D. 85 J

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