Power Transmission Chapter 1

Question 1

What is Friction?

Answer 1

Resistance to movement.

Question 2

What is Force?

Answer 2

A push or pull on an object.

Question 3

What force makes the body move?

Answer 3

Net force.

Question 4

Friction work’s opposite of force.

Answer 4

True

Question 5

Torque is defined as?

Answer 5

Rotational force.

Question 6

The formula for Torque is?

Answer 6

T=FxD (torque equals rotational force times distance)

Question 7

Formula for diameter is?

Answer 7

Radius x 2 (2 x R)

Question 8

Formula for circumference is?

Answer 8

Pie x D (pie x diameter)

Question 9

The area of a circle formula is?

Answer 9

.7854 x D2 or pie x r2

Question 10

The definition of RPM is?

Answer 10

Rate of rotation

Question 11

What is the definition of Power?

Answer 11

Rate at which work is done.

Question 12

Formula for work? (Power)

Answer 12

Work done = Linear force x Distance

Question 13

Work is defined as?

Answer 13

Linear force.

Question 14

What is the formula for horse power? (FTPDS)

Answer 14

HP = Torque x rpm divided by 5252.

Question 15

What is the most important formula in power transmission?

Answer 15

Horsepower.

Question 16

Can energy be created or destroyed.

Answer 16

No but it can change forms.

Question 17

What is efficiency?

Answer 17

Power out
——————
power in

Question 18

Diameter x 3/2 = size for bolt head and nut

Answer 18

Add 1/8” for the nut on grade 8 and heavy