EUSR SHEA Power Mock Test
Passmark 12/15
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What is the most effective way to prevent electrical shock on site?
Use insulated tools, PPE, and follow safe isolation procedures
Only touch live wires quickly
Wear gloves
Before working on electrical equipment, you must:
Test for voltage and isolate the equipment if safe
Assume it is safe if it looks off
Ask a colleague to check while you start work
Which of these is a hazard unique to power sites?
Tripping over cables in a home office
Slippery office floors
Overhead lines and exposed live conductors
What should you do if you see an exposed live wire on site?
Touch it carefully to check
Report it immediately and prevent access
Avoid it and report it at the end of your shift if safe
When working near high voltage equipment, what is essential?
Wearing rubber soled boots
Following safety clearances, PPE, and barriers
Working faster to finish sooner
Which of the following reduces the risk of arc flash incidents?
Wearing arc-rated PPE and following safe working procedures
Using rubber gloves
Only relying on experience
How should portable electrical tools be maintained on a power site?
Regular inspection and PAT testing
Visually inspect annually
PAT Test annually
What is the safest way to work near overhead power lines?
Use a wooden ladder
Call the Health and Safety Executive at the end of your shift
Use insulated equipment and maintain safe distances
How should chemical hazards (e.g., oil or transformer fluids) be managed?
Leave small spills for later
Contain and clean using correct procedures and PPE
Pour water on all spills
What is the main purpose of a site risk assessment on a power network?
Identify hazards and apply control measures to prevent accidents
Fill out paperwork for management
Wait for them to recover
Which of these is a correct action if a colleague is electrocuted on site?
Attempt to pull them away
Isolate the power source if safe, call emergency services, and administer first aid
The premises owner
Why is following lockout/tagout procedures critical?
To avoid paperwork
To ensure electrical circuits are safely isolated before work
Only for high-voltage transformers
What personal protective equipment is recommended when working on live electrical systems?
Arc-rated gloves, helmet, and face shield
Standard gloves and helmet only
No PPE needed if careful
How can environmental hazards on power sites be minimized?
Leave small leaks for the end of the week
Prevent oil leaks, dispose of chemicals safely, and report spills
Only focus on electrical safety
Which of the following is the best general approach to staying safe on a power site?
Planning work, identifying hazards, using PPE, and following procedures
Relying on experience alone
Only using PPE without assessing risks
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