1. If a centralized heating systems provides heat through pipes, it is a

Select one:

a. hot water based system

b. cold air base system

c. cold water based system

d. hot air based system

2. Which of the following statement about security cameras is false?

Select one:

a. Security cameras are considered crime stoppers rather than deterrents

b. Sometimes security cameras are mounted at the eye level of a sitting person.

c. The use of security cameras is decreasing with time, and nowadays, they are not as widely used as before.

d. Security cameras are mostly mounted high up on a wall or ceiling.