When should a stem-type service valve be front-seated?
A. during normal operation
B. when taking gauge readings
C. whenever the compressor has to be isolated
D. all of the above
Answer: C
You might also like to view...
Which type of refrigerant hose is used with an R-134a system?
A) Flexible, porous hose B) Barrier hose C) A solid nylon type hose D) Rigid hose
To obtain complete voltage control, the triac, like the SCR, must be ____________________.
Fill in the blank(s) with the appropriate word(s).
Civil Engineering consulting firms that provide services to outlying communities are vulnerable to a number of factors that affect the financial condition of the communities, such as bond issues, real estate developments, etc. A small consulting firm entered into a fixed- price contract with a spec home builder, resulting in a stable income of $320,000 per year in years 1 through 4. At the end of that time, a mild recession slowed the development, so the parties signed another contract for $150,000 per year for two more years. Determine the present worth of the two contracts at an interest rate of 10% per year.
What will be an ideal response?
Communicating systems record the system ________ history, allowing service technicians to view the problems that have occurred in each of the system components
A) temperature B) fault C) pressure D) manufacturing