____ are used to pressurize air to levels that are above atmospheric pressure.

A. Compressors
B. Hydraulic systems
C. Pneumatic systems
D. Pumps


Answer: A

Trades & Technology

You might also like to view...

A(n) ____________________ plan is prepared by the architect or structural engineer and shows the footings, foundation walls, and any items that support the structure.

Fill in the blank(s) with the appropriate word(s).

Trades & Technology

Which component of a hot oil system moves oil through the circulation and heating systems?

A) Storage tank B) Oil pump C) Oil circulation system D) Oil heating system

Trades & Technology

The cause of “mini trails” through the interior of the leaf is the action of ____

a. thrips c. scale b. leaf miner larvae d. honeydew

Trades & Technology

Reducing the field voltage __________ the speed of the motor and __________ its torque.

A. increases, decreases B. decreases, increases C. has no effect on

Trades & Technology