What does the acronym HIRARC stand for in the context of Malaysian occupational safety and health management?
Hazard Identification And Risk Assessment
Question · Easy
Never enter a tank before testing the air
Short
Which of the following is classified as an ergonomic hazard under the Guidelines for Hazard Identification, Risk Assessment and Risk Control (HIRARC)?
According to the Hierarchy of Controls, which control measure is considered the most effective for mitigating risk?
In a standard HIRARC assessment, how is the Risk level mathematically calculated?
Using the DOSH Malaysia HIRARC Guidelines, what does a likelihood rating of 5 typically represent?
Question · Medium
Spin the wheel: name the extinguisher
In the DOSH HIRARC Guidelines severity rating scale, a consequence resulting in approximately one single fatality is classified under which severity level?
If a risk assessment yields a Risk rating of "High" (e.g., a score of 15 or above on a 5x5 matrix), what is the required operational action?
Which hazard identification technique involves dividing a job into individual sequential steps and analyzing the hazards of each step?
Installing an acoustic enclosure around a noisy compressor is an example of which type of control in the Hierarchy of Controls?
What a Safety Data Sheet tells you
Implementing job rotation to limit a worker's exposure to hand-arm vibration is classified under which type of risk control?
Under Malaysian safety practices, which of the following triggers an immediate requirement to review and revise an existing HIRARC assessment?
What is meant by the term "residual risk" in hazard control and risk assessment?
Which type of machine guard is permanently attached to the machine frame and can only be removed using tools?
Machinery Safety
Under Section 15 of the Factories and Machinery Act 1967, what is the legal obligation regarding dangerous parts of machinery?
How does an interlocking machine guard function to protect the operator?
In machinery safety, what is an "in-running nip point"?
Which of the following is a key limitation of a "self-adjusting" guard on a circular table saw?
What is the primary function of a "two-hand control" device on a mechanical power press?
What is the first step that must be taken under a standard Lockout/Tagout (LOTO) procedure before servicing a machine?
Under the Factories and Machinery Act 1967, who is legally authorized to inspect and issue a Certificate of Fitness (CF) for hazardous machinery?
Which of the following describes a "shearing hazard" associated with moving machinery?
During a LOTO procedure, why is it critical to "dissipate residual energy" after locking out the main electrical switch?
Which machinery guarding device uses a light curtain to detect if any part of a person's body enters the danger zone?
Which electrical parameter is the primary determinant of the severity of physiological damage during an electric shock?
Electrical Safety
What is the primary safety purpose of "earthing" (grounding) the metal enclosure of an electrical appliance?
Which device is designed to detect a tiny imbalance between the live and neutral currents, tripping the circuit to prevent lethal electric shocks?
Electrical equipment marked with a "double square" symbol represents what class of protection and safety design?
When performing Lockout/Tagout (LOTO) for electrical maintenance, what is the critical step that must be done immediately after applying the physical locks?
What is an "electric arc flash" hazard in industrial electrical systems?
Question · Hard
Under standard Malaysian OSH guidelines, what is the threshold voltage above which electrical systems are generally classified as "High Voltage"?
For portable power tools used in wet or outdoor construction environments, what is the recommended safety practice to minimize shock hazards?
Why does a standard fuse or circuit breaker NOT protect a human being from a fatal electric shock in the event of direct contact with a live wire?
What is the first and most critical action to take when responding to a coworker who is in contact with a live electrical conductor?
What is the safety design concept of "Intrinsically Safe" (IS) electrical equipment?
Which of the following elements represents the fourth factor in the "Fire Tetrahedron" model, extending the traditional fire triangle?
Fire Safety
Under British and Malaysian standards (MS 1539), a fire involving ordinary combustible materials such as wood, paper, and textiles is classified as:
Which type of fire extinguisher is specifically designed for Class B (flammable liquids) and electrical hazards, leaving no residue after application?
Why is it dangerous to use a standard water-based fire extinguisher on an electrical fire?
Class D fires involve combustible metals such as magnesium, titanium, and sodium. Which extinguishing agent must be used to control these fires?
Which of the following is classified as an "Active Fire Protection" system in a building?
What is the primary function of "Passive Fire Protection" (PFP) in building safety?
What is the safety rule regarding fire doors in a commercial building?
In fire dynamics, what does the term "flashover" describe?
Which class of fire involves cooking oils and fats, requiring wet chemical extinguishing agents that undergo saponification?
Which of the following is the most common cause of industrial fires related to electrical systems?
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