Important #'S

Question 1

What is the most important thing for compressors/ pneumatic systems?

Answer 1

Volume of air

Question 2

What is the purpose of a diagram in a compressor?

Answer 2

Prevents short cycling of air
Stops air from leaking from one size to another

Question 3

On your piston rings , the dots , are they going up or down?

Answer 3

They go up

Question 4

Pascals law formula

Answer 4

F= P x A
P= F/A
A= F/P

Question 5

When starting up a system, what is one thing that needs to be done?

Answer 5

Purge the system (Air)

Question 6

Why would you want / require external supply?

Answer 6

Want new/clean liquid

Question 7

What type of dryer style is the best?

Answer 7

Refrigerant style

Question 8

How to calculate vacuum?

Question 9

What is the slope of air lines?

Answer 9

1 inch over 10ft

Question 10

What is the purpose of breathers on a tank?

Answer 10

Ensures that the pressure within storage tank remains within safe limits.

Question 11

What is wrong with Compressor not building pressure?

Answer 11

Either problem with check valve, pressure switch
Or Compressor itself

Question 12

Always have the T facing?

Answer 12

Up

Question 13

What end needs thrust bearing?

Answer 13

Top end / load end

Question 14

Process piping , how do you test type of pipe?

Answer 14

Spark test

Question 15

What is your pumping valve in bottom of an accumulator ?

Answer 15

Access a Check valve

Question 16

What type of pressure gauge has a tube that’s straighten ?

Answer 16

Bordon take

Question 17

How do you increase flow in an axial piston pump

Answer 17

Adjust the squash plate

Question 18

How are check valves seated?

Answer 18

Gravity
Spring

Question 19

What does FRL stand for?

Answer 19

Filter regular lubricant

Question 20

What is Dew point?

Answer 20

When moisture drops out of suspension because of a rapid temperature change

Question 21

How do you find area of a circle?

Answer 21

A=pie r2

Question 22

What are the pump elements of a reciprocating pump?

Answer 22

A plunger
A piston
A diaphragm

Question 23

What can cause pump to change?

Answer 23

1. wear 2. Leaks 3. Restriction I. Temperature of liquid

Question 24

How are pumps sized?

Answer 24

Flow rate

Question 25

Bernoulli principle

Answer 25

Velocity increases inversely to pressure

Question 26

How to check for soft foot ?

Answer 26

At the foot of the machine , set up dial indicator or using an feelergauge under the foot. Unloosen the bolts and this will determine now much soft foot you have. Correct with shims

Question 27

How to adjust vane pump

Answer 27

Pressure is adjusted by turning an screw clockwise to increase the pressure, and turning it anticlockwise reduce the pressure

Question 28

DBS ?

Answer 28

Dial bar sag

Question 29

Open/closed impellers

Question 30

Why would you use a stainless tank?

Answer 30

Keep corrosion away

Question 31

Why use a blower instead of a fan?

Answer 31

More pressure

Question 32

What is soft foot?

Answer 32

Uneven feet /footing making it wobble

Question 33

What is max # of shims to be used together ?

Answer 33

3

Question 34

How do you measure shims?

Answer 34

Micrometer

Question 35

What is something you should do with shims before using?

Answer 35

Clean, measure

Question 36

What does DBS stand for ?

Answer 36

Dial bar sag

Question 37

Why would you purposely misalign a pump?

Answer 37

Account for thermal expansion

Question 38

What does NPT stand for?

Answer 38

National pipe tape

Question 39

What is used to measure air pressure?

Answer 39

Barometer

Question 40

What valve is used with an accumulator ?

Answer 40

Shuttle valve

Question 41

What is the purpose of a detent ?

Answer 41

To resist or arrest the movement of A mechanical device