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MCQ Questions for CBSE Class 12 with Answers
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Fluid Mechanics Class 10 MCQ Questions With Answers
1.
The pressure in a liquid at a given depth is...
surface tension
gas pressure
hydrostatic
hydraulic
2.
For water...
1 mL = g/mL
1 mL = 1 g
1 L = 1 G
1 mL = 1 L
3.
If an object weighing 50.0 N displaces a volume of water with a weight of 10.0 N, what is the buoyant force on the object?
10 N
60 N
40 N
20 N
4.
An object submerged in a fluid experiences pressure
-on all sides
from above the object
from below object
5.
What device measures in mmHg?
baromometer
thermometer
graduated cylinder
sphygomometer
6.
Water pressure increases as depth increases.
True
False
7.
What is the principle of flotation?
floating objects displace a fluid equal to the weight of the fluid displaced
floating objects displace a fluid equal to their own weight
floating objects exert an upward buoyant force
8.
What is the pressure in the hydraulic fluid?
1210 N
484 N/m2
8000 N
3025 N/m2
9.
An object will sink in a fluid if
gravity is stronger than buoyant force
buoyant force is stronger than gravity
a fluid can be a gas or a liquid
if the object is solid
10.
If a hydraulic system has 1000 N applied to the input piston and has an area of 81 cm2, what is the pressure?
12.35 Pa
12,346 Pa
1235 Pa
123,457 Pa
11.
If there is a leak in a hydraulic or pneumatic system, the pressure will increase.
True
False
12.
The pressure caused by gravity pulling on the atmosphere.
atmospheric pressure
buoyant force
pascal pressure
density pressure
13.
The deeper a person dives in the ocean the ___ pressure felt by the diver.
-more
less
14.
The air pressure for a certain tire is 109kPa. What is the pressure in atmospheres?
813 atm
99.82 atm
471.2 atm.
1.08 atm
15.
A system that multiplies force by transmitting pressure from a small surface area through a confined fluid to a larger surface area.
hydraulic system
archimedes system
pressure system
bernoulli effect
16.
A material that flows is a
-fluid
liquid
pressure
compression
17.
If an object sinks in a fluid, the weight of the object is
greater than the weight of fluid displaced by the object
less than the weight of fluid displaced by the object
equal to the weight of the fluid displaced by the object
obeying the flotation principle
18.
The SI unit of pressure
Newton
Gram
Pascal
Pound
19.
What is the force up on the mailbox?
1210 N
8000 N
7744 N
5655 N
20.
How can a water strider walk on a pond?
hydrostatic pressure
buoyancy
surface tension of water
density
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