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Author Question: Which of the following is a type of security system? a. motion detectors. b. light sensors. ... (Read 17 times)

jhjkgdfhk

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on: Aug 28, 2018
Which of the following is a type of security system?
 
  a. motion detectors.
 
   b. light sensors.
 
   c. electronic pass codes.
 
   d. all of the above.

Question 2

An acceptable sound level to conduct concentrated work is
 
  a. 10 dB.
 
   b. 30 dB.
 
   c. 70 dB.
 
   d. 130 dB.


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paavo

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Reply #1 on: Aug 28, 2018
Answer to Question 1

D

Answer to Question 2

B


jhjkgdfhk

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Reply #2 on: Aug 28, 2018
Both answers were spot on, thank you once again


paavo

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Reply #3 on: Aug 28, 2018
Great! Please up vote :D


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