Firefighter Technical Rescue 2

Question 1

In confined space rescue, what atmospheric hazard is most commonly fatal to would-be rescuers?

Accepted Answer

Oxygen deficiency

Answer

Excess oxygen

Answer

High humidity

Answer

Cold temperatures

Question 2

What is the minimum acceptable oxygen concentration for a normal breathable atmosphere in a confined space?

Accepted Answer

19.5%

Answer

16.5%

Answer

21.0%

Answer

23.5%

Question 3

During a trench rescue, at what depth does OSHA require a protective system?

Accepted Answer

5 feet

Answer

3 feet

Answer

8 feet

Answer

10 feet

Question 4

What soil action is the leading cause of trench collapse fatalities?

Accepted Answer

Sudden cave-in burying workers

Answer

Erosion over weeks

Answer

Slow settling

Answer

Surface dust

Question 5

Before entering a trench for rescue, spoil piles should be kept how far from the edge?

Accepted Answer

At least 2 feet

Answer

At least 6 inches

Answer

Directly at the edge

Answer

Inside the trench

Question 6

What device is used to test confined-space atmospheres before entry?

Accepted Answer

Four-gas monitor

Answer

Thermal imaging camera

Answer

Pulse oximeter

Answer

Sound meter

Question 7

In a permit-required confined space rescue, who must remain outside to track entrants?

Accepted Answer

An attendant

Answer

The incident commander only

Answer

A bystander

Answer

No one is required