25. What person must approve the use of personal
electrical equipment before you can use it
1. The division officer
2. The engineer officer
3. The department head
4. The division chief
26. Compartments used to store compressed gas
cylinders should not be allowed to rise above
what maximum temperature?
27. On noncargo ships, in what position should
compressed gas cylinders be stored?
1. Vertically, valve up
2. Vertically, valve down
3. Horizontally, valve up
4. Horizontally, valve down
28. Compartments that contain compressed gases
are ventilated for what length of time if
ventilation has been secured?
2. 10 minutes
3. 15 minutes
4. 20 minutes
29. Oxygen and chlorine cylinders may be stored
in close proximity (near) to fuel or gas
30. Only trained and medically qualified
personnel are authorized to remove asbestos.
31. A tool is classified as power-driven if it has
which of the following power sources?
4. Each of the above
32. Personnel assigned to a fire watch during a
welding operation must remain at their
location for what minimum length of time
after the job is completed?
1. 10 minutes
2. 20 minutes
3. 30 minutes
4. 40 minutes
33. When operating rotating machinery, you
should never wear which of the following
3. Loose-fitting clothes
4. All of the above
34. Compressed air can be used to clean
disassembled machinery parts provided the
pressure doesnt exceed how many pounds per
square inch (psi)?
1. 30 psi
2. 45 psi
3. 60 psi
4. 75 psi
35. Sewage wastes contain bacteria and viruses.
They can enter your body through which of
the following means?
1. Your nose
2. Your mouth
3. Open sores
4. All of the above
36. You should not use liquid soaps or scented
disinfectants to clean up spilled sewage for
1. They cause too many suds
2. They have poor cleaning characteristics
3. They may temporarily disguise inadequate
37. You shouldnt smoke around sewage-handling
equipment for what reason?
1. Germs found in the sewage can be inhaled
2. Smoke adds to the odor
3. Gases found around equipment and given
off by sewage are explosive