Quiz Questions - MONTHLY TEST OF SEPTEMBER -26

Question 1 1 Marks

Electrical conductivity of gold is

A

56%

B

67%

C

94%

D

100%

Question 2 1 Marks

What is the unit of electric charge?

A

Volts

B

Hertz

C

Ampere

D

Coulomb

Question 3 1 Marks

Which material contains eight electrons in valency layer?

A

Insulators

B

Conductors

C

Semiconductors

D

Intrinsic semiconductors

Question 4 1 Marks

Which material is used as electrical insulator?

A

Gallium

B

Porcelain

C

Aluminium

D

Germanium

Question 5 1 Marks

Which electrical parameter opposes the flow of electrons?

A

Power

B

Voltage

C

Current

D

Resistance

Question 6 1 Marks

How the single strand wire is called?

A

Flexible wire

B

Twisted wire

C

Hook up wire

D

Multi strand wire

Question 7 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 8 1 Marks

Which material conducts electricity?

A

Mica

B

Paper

C

Glass

D

Copper

Question 9 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 10 1 Marks

What is the percentage of conductivity of electric current in silver?

A

0.56

B

0.67

C

0.94

D

1

Question 11 1 Marks

What is the percentage of conductivity of electric current in aluminium?

A

0.22

B

0.47

C

0.56

D

0.76

Question 12 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 13 1 Marks

Which metal has very good conductivity to the electric current?

A

Gold

B

Copper

C

Silver

D

Aluminium

Question 14 1 Marks

Which electrical property opposes the flow of electrons?

A

Power

B

Voltage

C

Current

D

Resistance

Question 15 1 Marks

What is the percentage of conductivity of electric current in copper?

A

0.56

B

0.67

C

0.94

D

1

Question 16 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 17 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

Question 18 1 Marks

Which formula is used to find the conductance?

A

Q / V

B

I x R

C

V / I

D

I / V

Question 19 1 Marks

Which materials are used for semiconductor?

A

Gallium and indium

B

Silver and aluminium

C

Arsenic and antimony

D

Silicon and germanium

Question 20 1 Marks

Which metal has very good conductivity of electric current?

A

Gold

B

Silver

C

Copper

D

Aluminium

Question 21 1 Marks

What is the name of the motion of charged particles in any medium?

A

Current

B

Voltage

C

Resistance

D

Frequency

Question 22 1 Marks

What is the purpose of standard wire gauge (SWG)?

A

Measure current

B

Measure voltage

C

Measure diameter of wire

D

Measure insulation of wire

Question 23 1 Marks

Which electrical parameter is measured by the megger?

A

Current

B

Voltage

C

Insulation resistance

D

Frequency

Question 24 1 Marks

Which tool is used for the simplest method of skinning wires?

A

Electrician's knife

B

Manual wire stripper

C

Thermal wire stripper

D

Mechanical wire stripper

Question 25 1 Marks

Which tool is used to measure the size of wire?

A

Try square

B

Steel rule

C

Feeler gauge

D

Standard wire gauge