bizSAFE Personal Protective Equipment (PPE) 2

Question 1

For work in a confined space where the atmosphere is oxygen-deficient (below 19.5%), which respiratory protection is required?

Accepted Answer

Self-Contained Breathing Apparatus (SCBA) or airline respirator

Answer

Disposable N95 dust mask

Answer

Chemical cartridge air-purifying respirator

Answer

Powered air-purifying respirator with P100 filters

Question 2

When working at heights on a bizSAFE worksite, which PPE combination is typically required?

Accepted Answer

Full-body safety harness, shock-absorbing lanyard, and safety helmet

Answer

Safety helmet and work gloves only

Answer

Safety boots and high-visibility vest only

Answer

Face shield and hearing protection

Question 3

What is the correct first step when removing (doffing) contaminated PPE to prevent self-contamination?

Accepted Answer

Remove outer gloves first, as they are the most contaminated item

Answer

Remove the safety helmet first

Answer

Remove respiratory protection first

Answer

Remove all items simultaneously

Question 4

Which eye and face protection is most appropriate for grinding operations that produce sparks and high-velocity particles?

Accepted Answer

Indirect-ventilated goggles, ideally with an additional face shield

Answer

Standard prescription spectacles

Answer

Safety spectacles with side shields alone

Answer

Face shield used alone without goggles

Question 5

What does a Noise Reduction Rating (NRR) value on hearing protection represent?

Accepted Answer

The laboratory-measured noise attenuation capability of the device

Answer

The exact decibel reduction workers will experience in all environments

Answer

The maximum noise level the hearing protector can physically withstand

Answer

The MOM-certified minimum protection level for Singapore sites

Question 6

High-visibility (hi-vis) garments are classified into performance classes. Which class offers the highest level of conspicuity for workers near fast-moving traffic?

Accepted Answer

Class 3 — maximum visibility for high-risk environments

Answer

Class 1 — minimum visibility for low-risk environments

Answer

Class 2 — intermediate visibility for medium-risk environments

Answer

Class 4 — specialised chemical-resistant hi-vis garments

Question 7

What action should a worker immediately take if their PPE becomes damaged or defective during a task?

Accepted Answer

Stop work, replace or report the defective PPE before resuming

Answer

Continue working until the end of the shift and report it then

Answer

Attempt to repair the PPE themselves on-site

Answer

Reduce the pace of work and monitor the damage