Quiz Questions - Test2batch1

Question 1 1 Marks

What is the name of the pair of metal strips used in battery cell?

A

Cathode

B

Electrolyte

C

Electrodes

D

Carbon rod

Question 2 1 Marks

Which electrolyte is used in lead-acid battery?

A

Zinc chloride

B

Sulphuric acid

C

Alkaline solution

D

Potassium hydroxide solution

Question 3 1 Marks

How batteries are classified?

A

Dry cells and alkaline cells

B

Button cells and lithium cells

C

Primary cells and secondary cells

D

Cylindrical cells and rectangular cells

Question 4 1 Marks

Which battery is used for cellular phones?

A

Nickel ion

B

Lithium ion

C

Zinc chloride

D

Sodium sulphur

Question 5 1 Marks

Which material is used for negative terminal of alkaline manganese dioxide batteries?

A

Zinc

B

Lithium

C

Cadmium

D

Nickel hydroxide

Question 6 1 Marks

What is the unit of electric charge?

A

Volts

B

Hertz

C

Ampere

D

Coulomb

Question 7 1 Marks

What is the rated voltage of a single cell in lead acid battery?

A

1.5 V

B

2.0 V

C

2.2 V

D

12 V

Question 8 1 Marks

Which energy is converted by the battery to produce electricity?

A

Electrical energy into light energy

B

Chemical energy into electrical energy

C

Mechanical energy into electrical energy

D

Electrical energy into mechanical energy

Question 9 1 Marks

What is the effect on a secondary cell supplying current to the load?

A

Leaking

B

Charging

C

Unloading

D

Discharging

Question 10 1 Marks

Electrical conductivity of gold is

A

56%

B

67%

C

94%

D

100%

Question 11 1 Marks

What is stationary electric charges?

A

Static charges

B

Kinetic charges

C

Chemical charges

D

Electrical charges

Question 12 1 Marks

What is the unit of electric charge?

A

Volts

B

Hertz

C

Ampere

D

Coulomb

Question 13 1 Marks

Which material contains eight electrons in valency layer?

A

Insulators

B

Conductors

C

Semiconductors

D

Intrinsic semiconductors

Question 14 1 Marks

Which material is used as electrical insulator?

A

Gallium

B

Porcelain

C

Aluminium

D

Germanium

Question 15 1 Marks

Which electrical parameter opposes the flow of electrons?

A

Power

B

Voltage

C

Current

D

Resistance

Question 16 1 Marks

How the single strand wire is called?

A

Flexible wire

B

Twisted wire

C

Hook up wire

D

Multi strand wire

Question 17 1 Marks

What is the purpose of covering provided over the electrical conductor?

A

Increase current flow

B

Reduce current flow

C

Decrease voltage rating

D

Protection against weather

Question 18 1 Marks

Which material conducts electricity?

A

Mica

B

Paper

C

Glass

D

Copper

Question 19 1 Marks

How many electrons are contained in coulomb of electric charge?

A

6.25 x 108 electrons

B

6.25 x 1012 electrons

C

6.25 x 1016 electrons

D

6.25 x 1018 electrons

Question 20 1 Marks

How the movement of electrons through a conductor in a particular direction is called?

A

Resistance

B

Inductance

C

Conductance

D

Electric current

Question 21 1 Marks

Which metal has very good conductivity to the electric current?

A

Gold

B

Copper

C

Silver

D

Aluminium

Question 22 1 Marks

Which electrical property opposes the flow of electrons?

A

Power

B

Voltage

C

Current

D

Resistance

Question 23 1 Marks

How many gauge numbers in SWG, changed to double the cross section area of the conductor?

A

Two gauge sizes decreased

B

Four gauge sizes increased

C

Five gauge sizes increased

D

Three gauge sizes decreased

Question 24 1 Marks

What are the fundamental properties of insulation materials?

A

Length and cross sectional area

B

Low resistance and thermal heat

C

Temperature and electrical hazards

D

Insulation resistance and dielectric strength

Question 25 1 Marks

What is the shape of standard wire gauge?

A

Square metal disk

B

Circular metal disk

C

Cylindrical glass disk

D

Rectangular plastic disk