Nesc practice test course 5001

What is the primary role of the Electrical Inspectorate Division in Trinidad and Tobago?

• To inspect and certify electrical works for safety and compliance.

• To collect revenue when everyone month comes.

• To erect and inspect high tenton electrical poles.

• To disconnect metering device when you are not code compliant.

In a single-phase system, what is the typical color for a hot (live) conductor in the United States?

• Black

• White

• Blue

• Yellow

What is the minimum height of the meter from top.

• 5 ft

• 6ft

• 2 ft

• 5.5 ft

For a 20A general receptacle circuit in a dwelling, which size copper conductor is typically required for the ampacity, according to Annex C of the Trinidad and Tobago Wiring Code?

• 2.5mm²

• 4.0mm2

• 1.5mm2

• 10mm2

What is the minimum height from the finished floor for installing a receptacle outlet?

• 1 foot (30 cm)

• 2 feet (60 cm)

• 3 feet (90 cm)

• 4 feet (120 cm)

How is the cross-sectional area of a grounding conductor determined?

• It must be half the area of the current-carrying conductor.

• It must be the same area of the current- carrying conductor.

• It must be the same size of the earthing electrode.

• It must be the same size of the bounding conductor.

In a single-phase electrical system, what is the purpose of the neutral conductor?

• To carry unbalanced current.

• To curry the current.

• To curry the voltage to the equipment

• To ensure that the circuit is grounded

n a 120/240 V single-phase system, what must be grounded?

• Only the hot conductors.

• Only the neutral conductor.

• Only the panel.

• Only the receptacle outlets

What is the minimum height requirement for a service head above the ground?

• 3.7m

• 3.5m

• 3m

• 3.9m

According to Trinidad and Tobago's Wiring Code, what is the purpose of using concrete slabs to protect underground cables?

• To prevent accidental damage from digging or construction work.

• To prevent moving of the underground conductor.

• To improve insulation resistance of the under ground conductor.

• To increase the cost of the work.