Medium and large commercial buildings typically use:
A) Medium- or high-pressure steam boilers. B) Low-pressure hot-water boilers.
C) Medium- or high-pressure hot-water boilers. D) Low-pressure steam boilers.
A
You might also like to view...
With programmable logic controllers, each line of logic must end with a(n) ____________________.
Fill in the blank(s) with the appropriate word(s).
Technician A says that a hose clamp can be used to compress the retainer fingers of a parking brake cable in order to remove it from the backing plate. Technician B says a box-end wrench can be used instead of a hose clamp. Which technician is correct?
A) Technician A only B) Technician B only C) Both Technicians A and B D) Neither Technician A nor B
The primary control for all HVACR functions in a direct digital control (DDC) system is:
A) A multistage thermostat. B) A computer. C) A relay pack. D) Not necessary. DDC systems do not use primary controllers.
Common hand jointers have a length of _____
a. 18? b. 12? c. 6? d. 4?