Pneumatic Systems

Question 1

What are the three times of commonly piping systems used?

Answer 1

Grid, decentralized , loop

Question 2

What is the simplest system?

Answer 2

Grid

Question 3

What is absolute temperature?

Answer 3

All molecular actions ceases zero degrees

Question 4

What is the pressure at absolute pressure ?

Answer 4

O

Question 5

How do you measure vacuum?

Answer 5

With an barometer

Question 6

What is slope of an air line ?

Answer 6

1 inch over 10 feet

Question 7

What is dew point?

Answer 7

When moisture drops out of suspension because of a rapid temperature

Question 8

What is one of the biggest problems?

Answer 8

Moisture

Question 9

What is a quick exhaust valve used for?

Answer 9

Quickly releasing pressure

Question 10

When would you use a needle valve?

Answer 10

, When you want to control flow in both direction

Question 11

How are check valves seated?

Answer 11

By gravity and spring

Question 12

What does FRL stand for?

Answer 12

Filter regulator lubricant

Question 13

Why is the order of FRL important ?

Answer 13

Not following those steps in order can cause wear/damage to equipment that is unnecessary

Question 14

What is the two most common types of traps / drains?

Answer 14

Mechanical and electrical

Question 15

How are compressors cooled?

Answer 15

Air , water and lubricant

Question 16

What is isothermal?

Answer 16

When Heat is generated and removed at such a rate as to maintain a constant temperature

Question 17

What is adiabatic ?

Answer 17

No Heat is added or subtracted

Question 18

What does the air intake filter control?

Answer 18

Amount of airborne contaminants allowed to enter the Compressor

Question 19

How is an air receiver classified?

Answer 19

Unfired pressure vessel

Question 20

What are the two types of compressed air?

Answer 20

Instrument air
Plant air

Question 21

When you have higher pressure , you need more?

Answer 21

Cooling

Question 22

When you have more cooling, that can lead to?

Answer 22

More condensation and moisture

Question 23

What do air inlet filters do?

Answer 23

Protect compressor from atmosphere airborne particles

Question 24

What are some advantages of pneumatics ?

Answer 24

Smooth acceleration and deceleration
Non - toxic
Presents little to No explosive hazards
Serves as a ready of energy storage

Question 25

0 degrees kelvin = ?? degrees Celsius

Answer 25

-273. 15

Question 26

If Rakin is 0, what is the degrees in Fahrenheit?

Answer 26

- 459.73F

Question 27

What are some disadvantages of pneumatic?

Answer 27

Compressed air is not cheap Improperly maintained Wastage can occur

Question 28

Define condensation

Answer 28

As the change in the state of water Vapor to liquid water in contact with any surface

Question 29

What is the purpose of a dryer in a pneumatic system?

Answer 29

Lower the dew point so that it does not cause problems in the system

Question 30

What is the purpose of a safety relief valve in a pneumatic system?

Answer 30

Bleed of excess system pressure

Question 31

What are two logical starting points when trouble shooting pneumatics?

Answer 31

Starting at the actuator Working way through air supply

Question 32

What are pneumatic interlocks?

Answer 32

Prevent personal injury to operators as well as damage to machine,

Question 33

What is the five types of grouping elements?

Answer 33

Energy supply Input elements Processing elements Control elements Power components

Question 34

What are the three seal Types?

Answer 34

Piston Rod Rod wiper

Question 35

What motor prevents coasting and protects from being back driven?

Answer 35

Gerotor motor

Question 36

What valve increases speed of a cylinder?

Answer 36

Quick exhaust valve

Question 37

What piping system is subject to air starvation if upstream demand is high?

Answer 37

Grid system

Question 38

What is the difference between non-venting and venting?

Answer 38

Non-venting regulators cannot regulate pressures downstream above the pressure setting the valve. Venting regulators can