Which of the following is one of the main components of a fire alarm system?
a. Class A fire extinguisher
b. Class B signal line
c. control panel
d. signaling appliance
c. control panel
You might also like to view...
Coolant around the _________signal(s) that the water pump seal is failing.
A. reservoir cap B. radiator cap C. telltale hole D. thermostat
Proper lifting usually requires the vehicle to be ________
A) Centered in the stall B) Positioned with the front wheel centered on the tire pad C) Both A and B D) Neither A nor B
In an inductive AC circuit, the phase relationship between the voltage and the current is such that the:
A) current is 180 degrees out of phase with voltage. B) voltage is 360 degrees out of phase with voltage. C) voltage is lagging the current. D) current is lagging the voltage.
How does a PN junction photodiode operate?
What will be an ideal response?