Recap Physical Hazards

What is the fundamental definition of a physical hazard?

• An agent that causes harm through chemical reactions.

• An exposure to harmful biological agents.

• An agent, environmental factor, or condition that can cause harm through physical contact or exposure, potentially leading to injury, illness, or death.

• A psychological and social condition of the work environment.

Which of the following is considered a type of mechanical hazard?

• Heat stress.

• Whole-body vibration.

• Entanglement hazard.

• Ionizing radiation.

What is the daily noise exposure level limit for employees?

• 115 dB(A).

• 80 dB(A)

• 85 dB(A)

• 90 dB(A)

Which of the following is a symptom of Heat Stroke, considered a medical emergency?

• Heavy sweating.

• Dizziness and nausea.

• Muscle cramps.

• Confusion and loss of consciousness.

What is a key characteristic of ionizing radiation?

• It has enough energy to remove electrons from atoms.

• It includes radio waves and microwaves.

• It is a source of heat stress.

• It can be detected by smell.

What is the purpose of a Lockout/Tagout (LOTO) procedure in the context of machinery hazards?

• To provide training and supervision.

• To protect the operator from flying chips.

• To prevent unauthorized persons from using the machines.

• To use cut-resistant gloves.

What is a "point of operation" in a machine, and why is it a hazard?

• It is the area where the work of cutting, shearing, or drawing is done, and it is a hazard because it is the location where the operator is most likely to be injured.

• It is the area where machine guards are installed, and it is a hazard because guards can fail.

• It is the area where power controls are located, and it is a hazard because of electrical shock.

• It is the area where the machine is inspected, and it is a hazard because of a lack of maintenance.

What is a preventive measure for machinery hazards that protects operators from rotating parts?

• Using a constant-pressure switch.

• Providing guarding.

• Implementing PPE.

• Using lockout/tagout procedures.

Which of the following is a health effect associated with exposure to whole-body vibration?

• Carpal tunnel syndrome.

• Finger blanching.

• Chronic back pain.

• Loss of grip strength.

What is the function of a fuse or circuit breaker in an electrical protection system?

• To double insulate the equipment.

• To reduce the low-voltage system.

• To interrupt the flow of electric current when there is a fault or overload.

• To isolate the worker from the equipment.