What is the role of the cooling systems in a transformer?

• To conduct electricity

• To dissipate heat

• To insulate the core

• To generate magnetic flux

Which of the following is NOT a primary source of energy?

• Wind

• Solar

• Coal

• Photon

The output from the cooling tower would be

• Sulphur

• Smoke

• Water

• Coal dust

What is a key component of the magnetic circuit in a transformer?

• Radiator

• Insulator

• Conductor

• Core

What is the function of a circuit breaker in an electrical system?

• To provide a continuous power supply

• To increase the voltage level

• To automatically interrupt power flow during a fault

• To convert AC to DC

The power stations connected to the grid has

• Same supply voltage

• Same supply frequency

• Same capacity

• Same efficiency

Generation, transmission and distribution system relationships are maintained by

• Oftel

• Ofcom

• Ofgem

• Ofsted

Underground cables are less expensive than overheads only in terms of

• Maintenance

• Repair and jointing

• Manufacture

• Installation

PME are also named as

• TN-S

• TN-C-S

• SNE

• TT

A neutral in SNE four wire system is to provide

• 230V Supply

• 400V Supply

• Balanced load

• Bonding condition