HSA Site Safety Exam Prep Exam Questions & Answers 2026 (21–30)

Question 1

During a pre-use check, a dumper's reversing alarm is found to be faulty, but a vehicle marshal is available. What is the correct action?

TheoryPractice · Accepted Answer

Do not use the dumper until repaired. Isolate the dumper immediately. Safety devices like reversing alarms must be functional; a marshal is an additional control, not a substitute for defective equipment.

Question 2

Under LOLER, when is a new lifting accessory exempt from a thorough examination before its first use on a site?

TheoryPractice · Accepted Answer

With a Declaration of Conformity under 1 year old. A Declaration of Conformity issued within the last 12 months exempts new equipment from immediate thorough examination, as it certifies manufacturing safety compliance.

Question 3

What is the most effective immediate control measure to minimize silica dust exposure when cutting concrete kerbs?

TheoryPractice · Accepted Answer

Use on-tool water suppression. Wet cutting suppresses dust at the source. This engineering control is significantly more effective than PPE or administrative measures in preventing airborne silica exposure.

Question 4

A mobile plant vehicle must reverse in a confined area with pedestrians. What is the most effective safety measure?

TheoryPractice · Accepted Answer

Use barriers and a vehicle marshal. Physical segregation combined with a vehicle marshal is most effective. This prevents pedestrians entering the danger zone, unlike mirrors or alarms which have limitations.

Question 5

An operative discovers a cut in an electrical cable exposing the inner wires. What is the immediate action?

TheoryPractice · Accepted Answer

Stop use and remove the cable. Immediately remove the cable from service. Taping is not a safe repair; only a competent person can properly restore insulation integrity and mechanical strength.

Question 6

Who is legally responsible for carrying out the daily pre-use check on a piece of plant before the shift begins?

TheoryPractice · Accepted Answer

The plant operator. The operator is responsible for checking their equipment before use to ensure it is safe for the shift.

Question 7

When an excavator is used to lift suspended loads, what specific documentation is required under LOLER?

TheoryPractice · Accepted Answer

Thorough examination report. Using an excavator for lifting duties classifies it as lifting equipment under LOLER, requiring a Report of Thorough Examination.

Question 8

Which position presents the highest risk of crushing for a vehicle marshal guiding a reversing truck?

TheoryPractice · Accepted Answer

Between the truck and a wall. Standing between a vehicle and a fixed structure creates a crushing zone with no escape route for the marshal.

Question 9

A safety-critical fault on a tool has been repaired. What must be done before it is used again?

TheoryPractice · Accepted Answer

Carry out a pre-use check. Operators must perform a pre-use check to verify the tool is safe and ready for use after any repairs.

Question 10

What is the primary factor when selecting hearing protection for using a breaker?

TheoryPractice · Accepted Answer

The specific noise level. Hearing protection must be matched to the noise level to provide adequate attenuation without over-protecting.

HSA Site Safety Exam Prep Exam Questions & Answers 2026 (21–30)

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