The controller for a humidifier, a humidistat, has an element that is ____-sensitive.
A. moisture
B. light
C. infrared
D. temperature
Answer: A
You might also like to view...
Answer the following statement(s) true (T) or false (F)
1. A timer is an example of a decision or logic device. 2. As an input device, a pyrometer would provide information about pressure. 3. In some counters, the output contacts can be adjusted to perform in a specific manner. 4. When the stepping motor is deenergized, the contacts return to the reset condition. 5. A typical electromechanical counter is generally available with digital set and readout dials.
One sure-fire way to determine if the system is operating with less than a full charge of refrigerant is to evaluate the ____.
A. cooling thermostat setting B. evaporator superheat C. nitrogen pressure D. defrost timer
A weeping relief valve on a hot water boiler may be an indication of:
A) A water-logged expansion tank problem. B) Low return water temperature. C) An extinguished pilot light. D) A circulating pump that is running continuously.
Two ___________________ in close proximity that are separated by some type of insulating material form a device called a capacitor
Fill in the blank(s) with the appropriate word(s).