220-1002 · Question #144
Which of the following steps should a technician take FIRST to prevent an electrical hazard when repairing a PC?
The correct answer is C. Disconnect the power before servicing the PC. The question specifically asks about preventing an electrical hazard - meaning danger to the technician from shock, not component damage from ESD. Wearing an ESD strap (A), placing components on an ESD mat (B), and using a grounded workbench (D) all protect components from…
Question
Which of the following steps should a technician take FIRST to prevent an electrical hazard when repairing a PC?
Options
- APut on an ESD strap.
- BPlace components on an ESD mat
- CDisconnect the power before servicing the PC
- DPlace the PC on a grounded work bench
How the community answered
(18 responses)- A6% (1)
- C94% (17)
Explanation
The question specifically asks about preventing an electrical hazard - meaning danger to the technician from shock, not component damage from ESD. Wearing an ESD strap (A), placing components on an ESD mat (B), and using a grounded workbench (D) all protect components from electrostatic discharge but do not protect the technician from live electrical current. Disconnecting the power (C) is always the FIRST step because it eliminates the risk of electric shock before any other safety measure is taken. Safety of the person takes priority over protection of the equipment.
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