USCG USCG Electrical
Set 1 • Question #9 of 142
Launch Interactive Practice Room To properly use a hook-on-type volt/ammeter to check current flow, you must FIRST __________.
A
de-energize the circuit to allow connection of the instrument in series
B
hook the jaws of the instrument around the insulated conductor
✓ Correct Answer
C
connect the voltage test leads to the appropriate terminals
D
short the test leads and calibrate the instrument to zero
USCG NMC Regulatory Explanation
In USCG Marine Electrical Systems (IEEE 45 and 46 CFR), regarding 'To properly use a hook-on-type volt/ammeter to check current flow, you must FIRST', the compliant technical standard is: 'hook the jaws of the instrument around the insulated conductor'.
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