26. Compartments that contain compressed
gases are ventilated for what length of
time if ventilation has been secured?
1.
5 minutes
2. 10 minutes
3. 15 minutes
4. 20 minutes
27. Oxygen and chlorine cylinders may be
stored in close proximity (near) to fuel
or gas cylinders.
1. True
2. False
28. Only trained and medically qualified
personnel are authorized to remove asbestos.
1. True
2. False
29. A tool is classified as power-driven if it has
which of the following power sources?
1. Pneumatic
2. Hydraulic
3. Electrical
4. Each of the above
30. 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
31. When operating rotating machinery, you
should never wear which of the following
items?
1. Jewelry
2. Neckties
3. Loose-fitting clothes
4. All of the above
32. Compressed air can be used to clean
disassembled machinery parts provided the
pressure doesn’t exceed how many pounds
per square inch (psi)?
1. 30 psi
2. 45 psi
3. 60 psi
4. 75 psi
33. 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
34. You should not use liquid soaps or scented
disinfectants to clean up spilled sewage for
what reason?
1. They cause too many suds
2. They have poor cleaning characteristics
3. They may temporarily disguise inadequate
clean-up procedures
35. You shouldn’t 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
36. Continuous exposure to high-level noises
could cause which of the following kinds
of hearing loss?
1. Temporary
2. Permanent
3. Both 1 and 2 above
37. When working in machinery rooms and
repair shops, you may be required to wear
double-hearing protection.
1. True
2. False
38. When driving or riding in a Navy vehicle,
you are required to wear seat belts.
1. True
2. False
39. Which of the following precautions should
you follow when lifting heavy objects?
1. Keep the load close to the center
of your body
2. Pull the load toward you; then lift
gradually
3. If too heavy to lift alone, get help
4. All of the above
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