A mechanical seal that is actually two seals, with one inner seal designed to handle full system pressure, and one outer seal that serves as a backup if the inner seal fails, is known as a _____ seal
A) back-to-back B) face-to-face C) single inside D) tandem
D
Trades & Technology
You might also like to view...
Plate thickness is given as a common fraction of an inch.
Answer the following statement true (T) or false (F)
Trades & Technology
A meter that uses a moving pointer or needle to indicate a value on a scale is called a(n) __________ meter.
a. LCD b. analog c. digital d. parallax
Trades & Technology
During operation, the compressor motor will rotate in the opposite direction to change the direction of refrigerant flow.
Answer the following statement true (T) or false (F)
Trades & Technology
A soil developed in transported parent materials will likely have properties related to the properties of the rock below the C horizon
Indicate whether the statement is true or false
Trades & Technology