If the needle on the pressure gauge fluctuates erratically during a hydrostatic test, this indicates that _____

a. the pressure is too high
b. the pressure is too low
c. there is a leak
d. there is air trapped in the system


d

Trades & Technology

You might also like to view...

What are other ways foods are treated today to prevent the growth of bacteria

and other organisms?

What will be an ideal response?

Trades & Technology

Old brake shoes are often returned to the manufacturer when new friction material is installed. These old shoes are usually called the ________

A) Nib B) Rim C) Core D) Web

Trades & Technology

DEX-COOL is ________

A) Propylene glycol B) Silicate and phosphate free C) Ethylene glycol D) Both B and C

Trades & Technology

Technician A says most corrosion hot spots can be slowed by etching, priming, and sealing them from the elements. Technician B says some anti-corrosion compounds are made of recycled rubber. Who is correct?

A. Technician A only B. Technician B only C. Both Technicians A and B D. Neither Technician A nor B

Trades & Technology