-When testing a basic power supply, you see that the primary fuse is blown. This typically indicates that
A) a short exists somewhere in the power supply.
B) an open exists somewhere in the power supply.
C) the fuse itself is the most likely cause of the circuit failure.
D) Any of the above conditions could exist.

Question

-When testing a basic power supply, you see that the primary fuse is blown. This typically indicates that
A) a short exists somewhere in the power supply. 
B) an open exists somewhere in the power supply. 
C) the fuse itself is the most likely cause of the circuit failure. 
D) Any of the above conditions could exist.

Quizplus · Accepted Answer

A blown fuse often indicates a short circuit somewhere in the power supply, as the excessive current flow would cause the fuse to blow in order to protect the circuit.

-When Testing a Basic Power Supply, You See That the Primary