English For Electronic And Electrical Engineering

Question 1

A circuit in which wires are disconnected

Answer 1

A broken circuit

Question 2

A device that provides power

Answer 2

Source

Question 3

A complete circuit with no breaks at all

Answer 3

Closed circuit

Question 4

A device that consumes electric power

Answer 4

Load

Question 5

A protective device

Answer 5

Fuse

Question 6

What does a simple circuit consist of?

Answer 6

A power source, two conducting wires

Question 7

What is function of a switch?

Answer 7

Open or close a circuit

Question 8

When does a short circuit occur?

Answer 8

There is a drop in the resistence or a broken insulation

Question 9

What can we use to prevent short cicuits?

Answer 9

Fuses

Question 10

How does a fuse work?

Answer 10

It melts when too much current flows throught them, interrupting this way the circuit

Question 11

Charge - điện tích

Answer 11

Coulomb - C

One coulomb is one ampere per second

Question 12

Force

Answer 12

Newton - N

One newton is one kilogram metre per second squared

Question 13

Work - công

Answer 13

Joule - J

One joule is one newton metre

Question 14

Power

Answer 14

Watt - W

One watt is one joule per second

Question 15

Electrical potential

Answer 15

Volt - V

One volt is one joule per coulomb

Question 16

Resistence

Answer 16

Ohm

One ohm is one volt per ampere

Question 17

Conventional power plants?

3

Answer 17

Nuclear power plants
thermoelectric power planta
Hydroelectronic power plants

Question 18

Alternative power sources?

5

Answer 18

Solar energy
Wind energy
Tidal energy
Geothermal energy
Biomass energy

Question 19

A device that interrupts the circuit

Answer 19

A switch

Question 20

What produces a turning movement in an electric motor?

Answer 20

An electric current and magnetic field

Question 21

Function of an armature?

Answer 21

Converts an electromagnetic energy to rotation

Question 22

Function of bearings?

Answer 22

support the drive shaft

Question 23

Function of brushes?

Answer 23

supply current to the armature

Question 24

Function of cummutator?

Answer 24

reversed the current to the armature

Question 25

Function of drive shaft?

Answer 25

Tranfers rotation from the motor

Question 26

Function of field windings?

Answer 26

create an electromagnetic field

Question 27

Components of an simple DC motor?

Answer 27

a field magnet and an armature

Question 28

Components of an armature?

Answer 28

Commutator and a loop of wire. | Commutator consists of brushes

Question 29

The piston moves down the cylinder?

Answer 29

This draws in fuel from the carburettor

Question 30

The piston creates a vacuum?

Answer 30

This creates a partial vacuum

Question 31

The piston moves up the cylinder?

Answer 31

This compresses the mixture.

Question 32

The gas expand quickly?

Answer 32

This pushes the piston down.

Question 33

The piston moves up and down?

Answer 33

This rotates the crankshaft.

Question 34

The crankshaft spins round?

Answer 34

This turns the rotor at 3000 rpm.

Question 35

The armature of the alternator rotates?

Answer 35

This induces a current in the stator windings.

Question 36

The alternator runs at a steady 3000 rpm?

Answer 36

This generates around 700 watts.

Question 37

6 stages in the distribution system?

Answer 37

1. Electricity leaves the power plant. 2. The voltage is increased at a step-up station. 3. Transmission lines carry high-voltage electricity to different substations. 4. Electricity is stepped down by transformers. 5. Power levels are lowered by small transformers mounted on poles. 6. Current at lower voltages is transmitted to homes and offices.

Question 38

Four strokes cycle?

Answer 38

Intake stroke -> compression stroke -> power stroke/expansion stroke -> exhaust stroke

Question 39

The piston moves down the cylinder?

Answer 39

This draws in fuel from the carburettor

Question 40

The piston creates a vacuum?

Answer 40

This creates a partial vacuum

Question 41

The piston moves up the cylinder?

Answer 41

This compresses the mixture.

Question 42

The gas expand quickly?

Answer 42

This pushes the piston down.

Question 43

The piston moves up and down?

Answer 43

This rotates the crankshaft.

Question 44

The crankshaft spins round?

Answer 44

This turns the rotor at 3000 rpm.

Question 45

The armature of the alternator rotates?

Answer 45

This induces a current in the stator windings.

Question 46

The alternator runs at a steady 3000 rpm?

Answer 46

This generates around 700 watts.

Question 47

6 stages in the distribution system?

Answer 47

1. Electricity leaves the power plant. 2. The voltage is increased at a step-up station. 3. Transmission lines carry high-voltage electricity to different substations. 4. Electricity is stepped down by transformers. 5. Power levels are lowered by small transformers mounted on poles. 6. Current at lower voltages is transmitted to homes and offices.

Question 48

Four strokes cycle?

Answer 48

Intake stroke -> compression stroke -> power stroke/expansion stroke -> exhaust stroke