T1

Question 1

Power is transmitted by what 3 means?

Answer 1

1. Mechanical
2. Electrical
3. Fluid

Question 2

6 Major components of fluid power systems

Answer 2

1. Prime Movers
2. Pumps or Compressors
3. Pipes
4. Hoses
5. Valves
6. Actuators

Question 3

Major advantages of fluid power systems

Answer 3

1. Ability to control power output
2. Variable speed control
3. Easily controlled by mechanical, electrical or electronic means

Question 4

Major disadvantages of fluid power systems

Answer 4

1. High safety factors
2. Susceptibility to impure environment
3. High cost
4. Fire hazards and noise levels

Question 5

5 System functions

Answer 5

1. Energy Conversion
2. Fluid distribution
3. Fluid control
4. Work performance
5. Fluid conditioning

Question 6

5 Component groups

Answer 6

1. Power unit
2. Actuators
3. Conductors
4. Control valves
5. Fluid conditioning unit

Question 7

3 types of control valves

Answer 7

1. Directional control valves
2. Pressure control valves
3. Flow control valves

Question 8

3 main types of conductors

Answer 8

1. Pipes
2. Tubes
3. Hoses

Question 9

What are fittings used for?

Answer 9

Used to connect conductors to other conductors

Question 10

What are adapters used for?

Answer 10

Connects conductors of different sizes or to other system components

Question 11

DCV consists of

Answer 11

1. body
2. internal moveable elements
3. external elements
4. ports
5. seals

Question 12

FCV consists of

Answer 12

1. body
2. internal elements
3. external elements
4. ports
5. seals

Question 13

A basic filter consists of

Answer 13

1. housing
2. filtration elements
3. bypass valve
4. ports

Question 14

Hydraulic path

Answer 14

Reservoir -> Filter -> Pump -> PCV -> DCV -> FCV -> Actuator -> Reservoir

Question 15

Pneumatics path

Answer 15

Air intake -> Compressor -> Receiver -> Filter -> Regulator -> Lubricator -> DCV -> Actuator -> FCV ->Exhaust

Question 16

3 methods to extinguish a fire

Answer 16

1. Starvation
2. Smothering
3. Cooling

Question 17

6 forms of energy that pose a safety hazard

Answer 17

1. Kinetic (Moving)
2. Potential (Stored energy/ mechanical waves)
3. Thermal (heat)
4. Electrical (Current & Voltage)
5. Chemical
6. Radiant (Electromagnetic waves)

Question 18

4 Environmental work conditions

Answer 18

1. General cleanliness
2. Air quality
3. Lighting levels
4. Sound levels

Question 19

Energy is the capacity to do work and it can be found in what 6 forms?

Answer 19

1. Potential
2. Kinetic
3. Thermal
4. Electrical
5. Chemical
6. Radiant

Question 20

Friction is what?

Answer 20

Force occurring between two surfaces in contact

Question 21

Torque produces what?

Answer 21

Rotational motion

Question 22

Motor actuators produce what?

Answer 22

A combination of torque and rotational speed

Question 23

3 modes of heat transfer

Answer 23

1. Conduction (occurs in solids)
2. Convection (occurs in fluids)
3. Radiation (occurs in electromagnetic waves)

Question 24

3 modes of heat transfer

Answer 24

1. Conduction (occurs in solids)
2. Convection (occurs in fluids)
3. Radiation (occurs in electromagnetic waves)

Question 25

Sea level pressure

Answer 25

101325 Pa

Question 26

4 types of symbols used in fluid power systems

Answer 26

1. Graphic 2. Pictorial 3. Cutaway 4. Combination