The first step in troubleshooting an electrical circuit is to ensure that _____.

Question

The first step in troubleshooting an electrical circuit is to ensure that _____. A. all power is OFF B. the circuit has power C. the proper voltage is present D. all motors are properly lubricated A(n) _____ is any current above the normal current level A(n) _____ is the part of an electrical circuit that connects the loads to the main power lines. Fuses open and CBs trip the moment power is turned _____ when there is a short circuit. _____ load problems occur when more than one load in a system does not operate A(n) ______ diagram shows the basic operation of the circuit. _____ in a circuit is used by lights, motors, solenoids, etc. _____ contacts have a built-in time delay to allow a motor to start. A short circuit is caused when power lines (L1 and L2) are connected. A short circuit occurs if one of the ungrounded power lines is connected to ground. _____ are devices that convert electrical energy to mechanical energy, heat, light, or sound Circuit overcurrent protection is provided by fuses, CBs, and _____. A(n) ______ circuit occurs when the current in a circuit takes a shortcut around the normal path of current flow. The building main and feeder circuits are designed to open the circuit during a fault. The line diagram is used to find the actual test points at which a meter is connected. Reset main breaker and turn circuits ON one at a time Check main switchboard for power Ensure power coming into building is correct

Explanation / Answer

1) Option C is correct... because for testing any electrical equipment it requires proper voltage.

2) Short circuit or fault current is any current above the normal current level.

3) A distributions network is the part of the electrical system that connects loads to the main power lines.

4)Fuse open and CB trips the moment power is turned OFF when there is a short circuit .

9)True.... When two separate power lines are connected it causes short circuit.

10) True.... When line is connected to ground it is a short circuit fault

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