Chapter 108

Question 0

An advantage of an electric control system over pneumatic systems is that:
A) the controllers can accept a wide variety of inputs
B) they provide better control
C) they are simple and easy to install
D) the controllers can be used outdoors

Answer 0

C) they are simple and easy to install

Question 1

In a capacitor type control motor, the rotor and gear train are sealed inside a housing that is partially filled with:
A) air
B) oil
C) antifreeze
D) refrigerant

Answer 1

B) oil

Question 2

Which of the following types of switching devices are used in conjunction with bimetallic strips to control electric circuits?
A) open-contact switch
B) Mercury bulb switch
C) snap switch
D) all of the above

Answer 2

D) all of the above

Question 3

A heat anticipatory gives a thermostat timed \_\_\_\_\_\_ position action to prevent the room temperature from overshooting.
A) single
B) two
C) three
D) multiple

Answer 3

B) two