Hydraulics/Pneumatics Exam 1

Question 1

Force

Answer 1

A force is any influence capable of producing a change in the motion of a body

Question 2

Pound

Answer 2

One unit for measuring force

Question 3

3 ways Force can change the motion of a body

Answer 3

1. Cause a body to move
2. Cause a body to slow down or stop
3. Change the direction of the body

Question 4

Any force that can stop or retard the movement of a body is…

Answer 4

Resistance

Question 5

Friction Resistance

Answer 5

Always present between the contacting surfaces of two objects when they are moving across one another

Question 6

The reluctance of a body to change its motion

Answer 6

Inertia

Question 7

A force that can cause a body to move

Answer 7

Energy

Question 8

Mechanical, Heat, Electrical, Light, Chemical and Sound are all forms of…

Answer 8

Energy

Question 9

Law of Conservation of Energy

Answer 9

Energy can neither be created no destroyed, although it may change from one form to another

Question 10

When energy is moving it is in _________ state

Answer 10

Kinetic

Question 11

When energy is stored and waiting to spring into action it is in __________ state

Answer 11

Potential

Question 12

The application of a force to cause movement of an object through a distance

Answer 12

Work

Question 13

The speed or rate at which work is done

Answer 13

Power

Question 14

The unit for measuring power

Answer 14

Horsepower

Question 15

1 Horsepower is equal to approximately _______ W

Answer 15

746 Watts

Question 16

The measure of a force’s intensity

Answer 16

Pressure

Question 17

The combination of kinetic energy and pressure

Answer 17

Working Energy

Question 18

Energy must be _________ to the ___________ object. This is usually done mechanically, electrically, pneumatically, or hydraulically

Answer 18

Energy must be transmitted to the resisting object