Soal Ruang Terbatas CGL 2 (Eng. Ver)

What oxygen level is permitted for working in a confined space?

• 23%-30%

• 19.5%-23%

• 15.5%-18.5%

• 30%-35%

This image shows a device...

• Thermometer

• Gas detector

• Sound level meter

• Barometer

This image shows a CO indicator. What does the CO indicator mean?

• A gas produced by the body's metabolic processes.

• A toxic gas from burning gasoline, wood, charcoal, propane, or other fuels.

• A colorless, toxic, flammable gas with a rotten egg odor.

• A green-yellow gas with a very strong odor.

A colorless, toxic, flammable gas that smells like rotten eggs is...

• H2S

• O2

• LEL

• CO

A workplace is considered a confined space if it meets the following criteria:

• A space designed for continuous work

• A space with limited access, not designed for continuous work, with the potential for oxygen depletion and exposure to toxic gases

• A space with adequate ventilation

• A space with very wide access

If a gas leak occurs in a confined space, the gas detector indicator will show the following signs, except...

• Alarm sounds

• The indicator light flashes and vibrates

• The display on the screen changes to a higher level

• The device turns itself off

What does the sign mean? This...

• Danger, confined space work, anyone may enter

• Danger, confined space work, only authorized personnel may enter

• Danger, no one is permitted to enter the confined space work

• Danger, confined space, move away from the area

Should a permit and JSA be attached before performing confined space work?

• Not necessary

• Only if requested

• Must be attached

• Depends on the worker's mood

Before entering a confined space, a supervisor must be present. The supervisor's role in confined space work is, except…

• To ensure the safety of workers inside the confined space

• To monitor environmental conditions

• To ensure safety procedures are followed and provide assistance in emergencies

• To chat with workers inside to prevent boredom

One of the main hazards often encountered in confined spaces is…

• High noise

• Ultraviolet radiation

• Lack of oxygen and toxic gases

• Dangers from heavy vehicles