Electricity Generation

The process of energy conversion taking place when the turbine which is couple to the generator to produce electricity is

• chemical energy to mechanical energy.

• mechanical energy to electrical energy.

• heat energy to mechanical energy.

• chemical energy to  heat energy.

The process of energy conversion taking place when the superheated steam turns the turbine is

• chemical energy to heat energy.

• heat energy to mechanical energy.

• mechanical energy to electrical energy.

• chemical energy to mechanical energy.

A power station using crude oil, natural gas or coal as source of energy known as

• hydro-electric power station.

• chemical power station.

• thermal power station.

• nuclear power station.

Power station which uses the potential energy of the water fall to drive the prime mover of the generator is known as

• Solar power station.

• Nuclear power station.

• Thermal power station.

• Hydro-electric power station.

Which one of the following devices is used to generate electricity in a power station?

• Transformers

• Alternators.

• Turbines.

• Boilers.

Which one of the following power is used to drive the turbine in a thermal power plant?

• Wind power.

• Solar power.

• Water power.

• Steam power.

Which one of the methods of producing electricity as listed below is classified by environmentalists as pollution-free?

• Waste.

  Waste.

• Nuclear.

• Solar power

• Tidal barrages.

The two common types of fuel used for generating electricity in Singapore is oil and

• coal.

• diesel.

• liquefied Nature gas (LNG).

• liquefied petroleum gas (LPG).

The cooling medium used in the condenser unit at the power station in Singapore is

• industrial water.

• liquid nitrogen.

• sea water

• dry ice

In Singapore the line terminal voltage at the generator is about

• 6.6 kV.

• 13.8 kV.

• 22.0 kV.

• 66.0 kV.