Question

1. in an event of a fire, elevators are not

true
false

1. what are the two types of smoke dete

ionization and photogenetic
oxidation and photoelectric
ionization and photoelectric
none of the above

1. what three things cause fires?

fuel, oxygen, ignition
fuel, c02, ignition
oxygen, wood, c02
none of the above

Explanation:

• In a fire, elevators can malfunction, trap people, and spread fire and smoke, so they are not to be used, making the first statement true.
• The two main types of smoke detectors are ionization and photoelectric, so the option "None of the above" for the second question is incorrect.
• The fire - triangle consists of fuel, oxygen, and ignition source, which are the three things that cause fires.

Answer:

1. True
2. Ionization and Photoelectric
3. Fuel, Oxygen, Ignition