[Answered] Which of the following is a type of security system? a. motion detectors. b. light sensors. ...

This topic contains a solution. Click here to go to the answer

Author Question: Which of the following is a type of security system? a. motion detectors. b. light sensors. ... (Read 18 times)

jhjkgdfhk

Hero Member
Posts: 569

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.

Need homework help now?

Ask unlimited questions for free

Ask a Question

Marked as best answer by a Subject Expert

paavo

Sr. Member
Posts: 301

Reply #1 on: Aug 28, 2018

Answer to Question 1

D

Answer to Question 2

B

jhjkgdfhk

Hero Member
Posts: 569

Reply #2 on: Aug 28, 2018

Both answers were spot on, thank you once again

paavo

Sr. Member
Posts: 301

Reply #3 on: Aug 28, 2018

Great! Please up vote

« previous next »

Did you know?

The largest baby ever born weighed more than 23 pounds but died just 11 hours after his birth in 1879. The largest surviving baby was born in October 2009 in Sumatra, Indonesia, and weighed an astounding 19.2 pounds at birth.

Did you know?

To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.

Did you know?

More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

Did you know?

There are 20 feet of blood vessels in each square inch of human skin.

Did you know?

Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%