Cylinders And Compressors

Question 1

Two basic types of hydrostatic motors are what?

Answer 1

Piston and vane

Question 2

A turbine motor is also called a what?

Answer 2

Hydrokinetic motor

Question 3

A motor that spins forward and reverse is called what?

Answer 3

Bidirectional

Question 4

What are 2 categories for pneumatic tools?

Answer 4

Percussive and rotary

Question 5

Give an example of a percussive and rotary tool?

Answer 5

Percussive- air hammer

Rotary- impact wrench

Question 6

A cylinder converts…..

Answer 6

Fluid power stored energy into straight line mechanical energy

Question 7

How does a check valve work?

Answer 7

Allows air to flow only in 1 direction

Question 8

Stroke adjusters limit stroke only in….

Answer 8

The retract position

Question 9

Most popular type of cylinder?

Answer 9

Double acting cylinder

Question 10

When cylinder rod is extended it is called the what?

Answer 10

Thrust load

Question 11

When cylinder rod is retracted it is called the what?

Answer 11

Tension load

Question 12

What bad thing can happen when the cylinder rod is fully extended?

Answer 12

Buckling from rod sag

Question 13

To power a double acting cylinder in both directions you at least have to have a what?

Answer 13

4 way DCV

Question 14

What is a popular primary seal?

Answer 14

Lip seal

Question 15

What does a wiper seal do?

Answer 15

Keeps contaminants from entering that managed to pass through the primary seal

Question 16

Name 3 cylinder mounting styles

Answer 16

Trunnion, clevis and side lug

Question 17

3 reasons rod buckling can happen?

Answer 17

1. Diameter of the rod
2. Way cylinder is mounted
3. Forces being applied

Question 18

What are 2 compressor types?

Answer 18

Displacement and dynamic

Question 19

Most common type of positive displacement compressor found in an industrial pneumatic system is what?

Answer 19

Reciprocating piston compressor

Question 20

What do vane compressors do?

Answer 20

Generate pumping action by causing vanes to track along circular housing

Question 21

Difference between motors and compressors?

Answer 21

Motors have the smallest volume chamber.

Compressors have the largest to smallest volume chamber

Question 22

What are centrifugal compressors used for?

Answer 22

Moving large amounts of air at low pressures

Question 23

5 unloading methods?

Answer 23

1. Bypass
2. Stop start
3. Inlet throttling
4. Inlet valve regulation
5. Inlet closure

Question 24

What do cushions do?

Answer 24

Slows down cylinder at the end of stroke, prevents shock