ACCURATE SOLUTIONS
Galvanometers are used to measure what - Precise Answer ✔✔current
A 4-20mA single CT has a max range of 150 amp what is the amps at
14mA? - Precise Answer ✔✔105A
When testing fuses, whether by resistance measurement or voltage
measurement, the test probes should contact______________ or
_______________. - Precise Answer ✔✔the metal end caps of ferrule
fuses and the blades on knife-blade fuses.
Buchholz relays are used to protect: - Precise Answer ✔✔Liquid
transformers
For high-voltage bushings without a capacitance tap, at what level would
a hot collar watt-loss test indicate possible contamination? - Precise
Answer ✔✔100mW
Who is the main federal agency charged with the enforcement of safety
and health legislation? - Precise Answer ✔✔Occupational Safety and
Health Administration
what does this schematic symbol represent - Precise Answer ✔✔battery
, From a safety perspective, which of the following tests is most important
when servicing medium-voltage circuit breakers? - Precise Answer
✔✔First-trip testing
Which protective relay functions on a predetermined value of polyphase
voltage in the desired phase sequence? - Precise Answer ✔✔47
DEVICE
Transformers work on which of the following principles: - Precise
Answer ✔✔Faradays Law
In a three-phase motor, the speed of rotation of the magnetic field is
called the _____ speed. - Precise Answer ✔✔synchronous
The shunt-type DC motor is known to have: - Precise Answer ✔✔good
speed regulation
Capacitance is directly proportional to the area of the plates. - Precise
Answer ✔✔TRUE
Five lines on a bolt head in the shape of a pentagon is a grade __ bolt -
Precise Answer ✔✔7
six lines on a bolt head in the shape of a hexagon is a grade __ bolt -
Precise Answer ✔✔8