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PHYSICS

Physics
A single fixed pulley is used to draw water from a well because

Force is applied in a convenient direction
Mechanical advantage is high
Velocity ratio is low
Efficiency is 100%

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Physics
What type of simple machine is an axe?

The screw
Lever
Wedge
Both A & B

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Physics
While ascending a hill, the driver of the vehicle keeps the gear ratio

Less than 1
Either equal to or greater than 1
Equal to 1
Greater than 1

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Physics
The size of gear is usually specified by

Pitch circle diameter
Pressure angle
Circular pitch
Diametral pitch

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Physics
Which of the following is a compound machine?

Bicycle
Ramp
Knife
Screw

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