Questions and Answers
100% Correct
What is a stratified atmosphere? - Answer- Layered due to weight ratio of gas
What is vapor density? - Answer- The weight of a gas
What are forms of hazards? - Answer- Solids, liquids and gasses
How many types of ventilation are there and what are they? - Answer- 2, natural and
mechanical
How many types of mechanical ventilation are there and what are they? - Answer- 2,
positive and negative
What is the goal of ventilating? - Answer- To circulate the air as many times as possible
with a minimum of 7 times
What is the best form of ventilation to supply oxygen - Answer- Positive
What is level B PPE? - Answer- Strongest level of respiratory protection with lesser
level of skin protection
What is level A PPE? - Answer- Strongest level of respiratory protection with strongest
level of skin protection
What is level C PPE? - Answer- When the hazard is known
What should always be worn while using SAR (supplied air respirator)? - Answer-
Escape bottle
What does the acronym OATH stand for? - Answer- Ok 1 pull, Allow slack 2 pulls, take
slack 3 pulls, help 4 pulls
What is a disadvantage of a 4:1 block and tackle? - Answer- Decreases the distance
you can enter because a 4:1 is only good for up to 50 feet