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Engineering Mechanics

Engineering Mechanics
A pendulum which executes one beat per second is known as

Torsional pendulum
Simple pendulum
Compound pendulum
Second's pendulum

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Engineering Mechanics
A block of mass 20 kg lying on a rough horizontal plane is connected by a light string passing over a smooth pulley to another mass 5 kg, which can move freely in the Vertical direction, as shown in the below figure. The tension in the string will ___________ with the increase in coefficient of friction.

Decrease
Not be effected
None of these
Increase

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Engineering Mechanics
The forces, whose lines of action are parallel to each other and act in the same directions, are known as

Unlike parallel forces
Like parallel forces
Coplanar concurrent forces
Coplanar non-concurrent forces

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Engineering Mechanics
The force applied on a body of mass 100 kg to produce an acceleration of 5 m/s2, is

20 N
None of these
100 N
500 N

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Engineering Mechanics
One kg force is equal to

9.8 N
7.8 N
8.9 N
12 N

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Engineering Mechanics
For a self locking machine, the efficiency must be

1
Less than 50%
Equal to 50%
Greater than 50%

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MORE MCQ ON Engineering Mechanics

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