Which type of condenser is on the back of a non-frost-free refrigerator?
A) A packaged air-cooled condenser B) An induced-draft air-cooled condenser
C) A natural-draft air-cooled condenser D) A forced-draft air-cooled condenser
C
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The locations where HVAC equipment is installed in a large commercial building are normally shown on _____.
a. structural plans b. floor plans c. mechanical plans d. plumbing plans
Find the value of the sine of 28° to the nearest ten thousandth.
What will be an ideal response?
If a closed-loop servo system is in a balanced condition, the feedback signal will __________ if the set point changes.
A. increase B. decrease C. either a or b
All of the follow are true about engine thermostats EXCEPT:
A. A thermostat may be removed from a system if it is running hot. B. A faulty thermostat will effect vehicle emissions. C. A stuck closed thermostat will cause engine overheating. D. A stuck open thermostat will cause engine overcooling.