Direction: Choose the letter of the best answer. Write the answer on your
notebook
1. What types of wiring method is commonly found in an older home?
a. open wiring
b. open knob and tube wiring
c. concealed wiring
d. none of these
2. In installing an electrical wiring system with the exposed knob and
tube wiring method, what is the minimum distance between conductors
that should be maintain?
a 4 centimeters
b. 6 centimeters
C 12 centimeters
d. 30 centimeters
3. In installing an electrical wiring system with the exposed knob and
tube wiring method, the knobs must have how many centimeter distance
apart?
a 4 centimeters
b. 6 centimeters
c. 12 centimeters
d. 30 centimeters
4. What electrical materials are necessary to provide whenever wires
cross each other because it gives the wire extra protection from injury?
a. mica tube
b. porcelain tube
c. circular loom
d. all of these
5. What type of control device that controls the bulb in two different
Jocations?
a. Three-way switch
b. Switchgear
c. Four-way switch
d. single pole switch​