MASS Power Plant Safety 2

Question 1

Before performing maintenance on a steam turbine, which procedure ensures the equipment cannot be accidentally energized?

Accepted Answer

Lockout/Tagout (LOTO)

Answer

Posting a verbal warning

Answer

Reducing the load to 50%

Answer

Closing the control room door

Question 2

What is the primary purpose of a confined space entry permit in a power plant?

Accepted Answer

To verify atmospheric testing and rescue provisions before entry

Answer

To track tool inventory

Answer

To schedule overtime

Answer

To log visitor access

Question 3

A worker notices steam escaping from a high-pressure line joint. What is the correct first action?

Accepted Answer

Evacuate the area and report it through proper channels

Answer

Tighten the joint immediately by hand

Answer

Spray water on the leak

Answer

Stand closer to assess the temperature

Question 4

Which gas is the primary asphyxiation concern when entering a nitrogen-purged vessel?

Accepted Answer

Oxygen displacement by nitrogen

Answer

Carbon dioxide

Answer

Methane buildup

Answer

Excess hydrogen

Question 5

What does a Class C fire extinguisher rating indicate it is suitable for?

Accepted Answer

Energized electrical equipment

Answer

Ordinary combustibles

Answer

Flammable liquids

Answer

Combustible metals

Question 6

Why must hearing protection be worn in turbine and pump halls?

Accepted Answer

Because sustained high noise levels can cause permanent hearing loss

Answer

To block radio chatter

Answer

To keep workers warm

Answer

To filter dust particles

Question 7

What is the main reason for grounding electrical equipment in a power plant?

Accepted Answer

To provide a safe path for fault current and prevent shock

Answer

To improve appearance

Answer

To increase voltage output

Answer

To reduce maintenance frequency