Energy Sources and Electrical Machines Quiz

Which of the following is a non-renewable energy source?

• Solar energy

• Wind energy

• Coal

• Hydroelectric power

Which of the following is a renewable source of energy?

• Diesel

• Natural Gas

• Wind

• Nuclear

What does magnetism refer to?

• The force that acts between magnets and magnetic materials

• The force that acts between electric charges

• The force that acts between gravitational bodies

• The force that acts between chemical compounds

The following are among the parts of power system except

• Generation

• Fuse

• Transmission

• Distribution

The following are found in Hydroelectric generating plant except

• Dam

• Turbine

• Generator

• Boiler

What is the role of a step-down transformer in the power distribution system?

• To increase the voltage for long-distance transmission

• To generate electricity

• To decrease the voltage for safe home usage

• To store electricity

Electrical machine that converts mechanical energy into electrical energy is called a Generator

• True

• False

Load curves in power system are grouped into two, these are

• Mechanical and magnetic

• Base and peak load

• Heat and light loads

• Industrial and commercial loads

In which direction does the magnetic field flow externally to the magnet?

• From south (S) to north (N)

• From east (E) to west (W)

• From north (N) to south (S)

• From west (W) to east (E)

What is the symbol for magnetic flux?

• Φ (phi)

• γ (gamma)

• β (beta)

• α (alpha)