RCDD chapter 14
Overhead paging
Life safety
Noise masking
Sound reinforcement
All the above
True
False
Centrally amplified systems
Alert or alarm tones
Distributed amplified systems
Group call
Centrally amplified
Constant current
Distributed amplified
Constant voltage
1 m (3.3 ft), one watt
2 m (6.6 ft), two watt
3 m (10 ft), 3 watt
2
3
4
5
55
45
25
65
100 dB
95 dB
85 dB
75 dB
Hexagonal
Triangle
Square
Rectangle
Twice
Quadruple
Three times
2.4 to 3.7m (8 to 12 ft)
4.4 to 5.4 m (14 to 17 ft)
1.4 to 2.4 m (5 to 12 ft)
3.4 m (11 ft)
2.4 m (8 ft)
4.4 m (14 ft)
1.4 m ( 5 ft)
7 m (24 ft)
6 m (20 ft)
8 m (26 ft)
5 m (17 ft)
True
False
True
False
Three
Two
Four
Five
In-phase
Out-of-phase
60 V system
20 V system
70 V system
40 V system
70 V system
40 V system
20 V system
25 V system
Speaker
Power supply
Amplifier
Control unit
Quiz Review Timeline +
Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.
Wait!
Here's an interesting quiz for you.