What should you do if discover a valve with extreme blockage?

A. Contact a supervisor.
B. Use a rod-out tool to clear the blockage.
C. Contact the maintenance department.
D. Remove the valve and its associated piping from service.


A. Incorrect. In cases of extreme blockage, it may be necessary to remove the valve and its associated piping from service to clear the blockage.
B. Incorrect. In cases of extreme blockage, it may be necessary to remove the valve and its associated piping from service to clear the blockage.
C. Incorrect. In cases of extreme blockage, it may be necessary to remove the valve and its associated piping from service to clear the blockage.
D. Correct. In cases of extreme blockage, it may be necessary to remove the valve and its associated piping from service to clear the blockage.

Trades & Technology

You might also like to view...

Myoepithelial cells are smooth muscle cells surrounding the alveolus

Indicate whether the statement is true or false

Trades & Technology

The terms "terminal" and "connector" refer to the same part in a wiring harness

Indicate whether the statement is true or false

Trades & Technology

How many rotations of the crankshaft are required to complete each stroke of a four-stroke cycle engine?

A) Two B) One-fourth C) One-half D) One

Trades & Technology

At least ____ screws must be used to make connections for round metal ductwork.

A. 1 B. 2 C. 3 D. 4

Trades & Technology