Chapter 3: Confined Spaces

Question 1

When testing for atmospheric hazards, select the correct order of testing from the following list.

I. Combustible gases and vapors
II. Oxygen
III. Toxic gases and vapors

A. I, II, III
B. I, III, II
C. II, III, I
D. II, I, III
E. III, II, I

Question 2

Rescue and emergency service personnel must practice making permit space rescues at least once every ______.

A. 4 months
B. 6 months
C. 12 months
D. 18 months

Answer 2

C. 12 months

Question 3

The entry ______ shall terminate entry and cancel the entry permit when the entry operations covered by the entry permit have been completed.

A. Attendant
B. Employer
C. Supervisor
D. Team

Answer 3

C. Supervisor

Question 4

An entry supervisor also may serve as an attendant or as an authorized entrant, as long as that person is trained and equipped as required.

True or False

Answer 4

True

Question 5

“Oxygen-deficient atmosphere” means an atmosphere containing less than ______ oxygen by volume.

A. 18.5%
B. 19.5%
C. 20.5%
D. 23.5%

Answer 5

B. 19.5%

Question 6

Within certain confined spaces, forced air ventilation may constitute elimination of atmospheric hazards, but only if the employer can demonstrate that forced air ventilation alone will control all atmospheric hazards in the space that permit safe entry.

True or False

Answer 6

True

Question 7

Where inerting is used to displace hazardous gases within a confined space, inerting ______ the oxygen concentration within the confined space.

A. Does not affect
B. Has little effect on
C. Lowers
D. Raises

Answer 7

C. Lowers

Question 8

Whenever the employer has reason to believe that there are deviations from the permit space entry procedures, the employer must train each ______.

A. Affected employee
B. Attendant
C. Authorized Entrant
D. Entry supervisor

Answer 8

A. Affected employee