433A Pneumatic Systems 6

Question 1

What is the function of an air receiver tank in a pneumatic system?

Accepted Answer

To store compressed air, dampen pressure pulsations, and provide reserve capacity for peak demand periods

Answer

To compress the air

Answer

To dry the compressed air

Answer

To distribute air to multiple outlets

Question 2

What is the proper method for detecting leaks in a pneumatic system?

Accepted Answer

Apply soapy water solution to joints and connections and look for bubbles, or use an ultrasonic leak detector

Answer

Visual inspection only

Answer

Listen for leaks by ear only

Answer

Increase system pressure until leaks become visible

Question 3

What is a rodless pneumatic cylinder and when is it used?

Accepted Answer

A cylinder where the piston transmits force through a slot or magnetic coupling to an external carriage, used when stroke length equals or exceeds available mounting space

Answer

A cylinder without any moving parts

Answer

A cylinder that uses vacuum instead of pressure

Answer

A very small cylinder for light-duty work

Question 4

What is the purpose of a pneumatic manifold?

Accepted Answer

To centralize valve mounting and air distribution, reducing tubing connections and simplifying maintenance

Answer

To generate compressed air

Answer

To increase air pressure beyond compressor output

Answer

To filter and dry compressed air

Question 5

Why is it important to properly size an air compressor for the system demand?

Accepted Answer

An undersized compressor causes low pressure and poor performance, while an excessively oversized one wastes energy through frequent cycling and unloaded running

Answer

An oversized compressor is always better

Answer

Compressor size does not affect system performance

Answer

The smallest available compressor should always be used

Question 6

What does the free air delivery (FAD) rating of a compressor specify?

Accepted Answer

The volume of air delivered per unit time, corrected to atmospheric (free air) conditions

Answer

The maximum pressure the compressor can produce

Answer

The noise level of the compressor

Answer

The weight of air the compressor can move