Enclosed Space

What is an enclosed space?

• A space with adequate ventilation

• A space with continuous worker occupancy

• A space with unlimited openings for entry and exit

• A space with limited openings for entry and exit

What is the purpose of risk assessment in enclosed space entry?

• To identify the hazard

• To evaluate the risk associated with the hazard

• To control the hazard

• To analyze the risk

What should be done before opening the manhole door of the tanks?

• Ignore the air vent arrangements

• Ensure the tanks are full

• Check the tank soundings

• Open the manhole door immediately

What should be done to prevent falls into the enclosed space?

• Remove all safety measures

• Encourage unauthorized entry

• Keep the space dark

• Place guards on any opening

What is the purpose of intrinsically safe blowers in enclosed spaces?

• To create noise

• To provide lighting

• To ensure sufficient ventilation

• To control temperature

What should be done if the oxygen level falls below 18% in the tank atmosphere?

• Ignore the low oxygen level

• Continue working

• Stop work and evacuate

• Increase the number of workers

Where does methane gas tend to rise in an enclosed space?

• Top

• Middle

• Everywhere equally

• Bottom

What is the purpose of a self-contained breathing apparatus?

• To provide oxygen for welding

• To supply breathable air in emergencies

• To cool down the space

• To increase toxic gases

What is the minimum service time of a self-contained compressed air apparatus?

• 5 minutes

• 15 minutes

• 30 minutes

• 1 hour

What should be done before entering an enclosed space?

• Carry a camera

• Wear personal protective equipment

• Bring food for lunch

• Ignore safety precautions