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Worksheetsnc2 reviewer Set A-1
Total questions: 15
Worksheet time: 8mins
A kind diagram that is used in designing or troubleshooting electrical installation control equipment or arrangement to simplify the tracing of the circuit.
schematic diagram
pictorial drawing
wiring diagram
electrical lay-out
Which of the following electrical parameters apply or labelled to all kind of switches?
rated current and rated voltage
rated power and rated voltage
rated resistance and rated current
rated power and rated current
When tightening a terminal screw connection with the splice wire, the end of the splice wire should pass around the screw on the same direction as the screw is turned, so that ________________.
the wire will set as the locknut
any pull on the wire will tighten the screw
the screw can be removed more easily
the wire will not turn off
One most advantage of using rubber insulation tape in splice is _________________.
does not deteriorate with age
does not absorb much moisture
is able to withstand high temperature
all of the above
Locknut, bushing or connectors are called electrical __________.
conduit
fittings
expander
tighteners
What is the commonly used conduit in Service Entrance?
Flex Conduit
RSC/IMC
EMT
PVC
What do you call a fitting resembling a pipe or a box with a removable cover access to electric conduit?
conduit strap/clamp
condulet
connector
locknut and bushing
The box used for convenience outlet is _________.
splice box
full box
square box
utility box
A mechanical connector that is crimped unto a conductor for both splice and termination is known as _________.
split bolt connector
bolt connector
solderless connector
mechanical lug
Commonly used adhesive materials for joining of PVC conduit.
PVC cement
PVC varnish
PVC solvent
PVC adhesive
The size of circuit breaker to be used in 40 A motor full load current is
Equal to 100AT
More than 115% of the full load
Less than 50AT
Not less than 125% of the full load
A live duplex wire can be de-energized quickly and safety by cutting ____.
Across with an electrical pliers
One by one using a diagonal cutter
Across using a mechanical pliers
One by one with a knife
When measuring load current, an ammeter is connected _____.
in series with the load
parallel with the load
across the terminals of the load
from one load terminal to ground
When measuring load resistance, the ohmmeter is connected____.
in series with the load
across the terminals of the load
from one load terminal to ground
parallel with the source
What is the ampacity of #8.0 sq.mm. THW wires?
35 amperes
20 amperes
25 amperes
50 amperes
