WorksheetsB.E.E
Total questions: 124
Worksheet time: 1hrs 2mins
Name
Class
Date
1.
How do you avoid danger due to electricity?
a)
Good quality equipment
b)
Proper Wiring
c)
Efficient Maintainance
d)
All the above
2.
Working under wet conditions with electricity is ______
a)
Good Practice
b)
Bad Practice
c)
Not allowed
d)
Both B&C
3.
How do you avoid danger due to electricity?
a)
Good quality equipment
b)
Proper Wiring
c)
Efficient Maintainance
d)
All the above
4.
Working under wet conditions with electricity is ______
a)
Good Practice
b)
Bad Practice
c)
Not allowed
d)
Both B&C
5.
Heating of conducting and insulating materials results in _________.
a)
Operator burns
b)
Emission of toxic gases
c)
Component burns
d)
All the above
6.
Which of the following is a preventive measures against electricity accident?
a)
Touching live wire
b)
Working in wet condition
c)
Don't touch live wire
d)
Working under poor insulated condition
7.
What are the causes of electrical accidents?
a)
Over Voltage
b)
Over Current
c)
Short Circuit
d)
All the above
8.
Heating of conducting and insulating materials results in _________.
a)
Operator burns
b)
Emission of toxic gases
c)
Component burns
d)
All the above
9.
Which of the following is a preventive measures against electricity accident?
a)
Touching live wire
b)
Working in wet condition
c)
Don't touch live wire
d)
Working under poor insulated condition
10.
Human body is a ---------- conductor of electricity
a)
Good
b)
Bad
c)
Worst
d)
None of the above
11.
Electrical shocks always needs _____.
a)
Unplugging the appliance
b)
Turn off supply
c)
Medical emergency
d)
All the above
12.
Human body is a ---------- conductor of electricity
a)
Good
b)
Bad
c)
Worst
d)
None of the above
13.
Electrical shocks always needs _____.
a)
Unplugging the appliance
b)
Turn off supply
c)
Medical emergency
d)
All the above
14.
he perception of electric shock depends on ______.
a)
Current
b)
Voltage
c)
Resistance
d)
Both A& B
15.
The heating effect of current can cause _____.
a)
Severe burns
b)
Heart blockage
c)
Muscle damage
d)
Nerves damage
16.
The perception of electric shock depends on ______.
a)
Current
b)
Voltage
c)
Resistance
d)
Both A& B
17.
The heating effect of current can cause _____.
a)
Severe burns
b)
Heart blockage
c)
Muscle damage
d)
Nerves damage
18.
Where are the long nose pliers commonly used?
a)
Squees in tight spaces
b)
To move
c)
To bend/ loop
d)
All the above
19.
Where are the long nose pliers commonly used?
a)
Squees in tight spaces
b)
To move
c)
To bend/ loop
d)
All the above
20.
Which substances allow electric current to pass through them?
a)
Conductor
b)
Semiconductor
c)
Insulator
d)
None of these
21.
Which substances do not allow electric current to pass through them?
a)
Conductor
b)
Semiconductor
c)
Insulator
d)
None of these
22.
Which materials conduct electricity partially?
a)
Conductor
b)
Semiconductor
c)
Insulator
d)
None of these
23.
________ is an example of insulator material.
a)
Mica
b)
Silicon
c)
Copper
d)
Gold
24.
The best semiconductor material is __________.
a)
Silicon
b)
Germanium
c)
carbon
d)
All of these
25.
Which substances allow electric current to pass through them?
a)
Conductor
b)
Semiconductor
c)
Insulator
d)
None of these
26.
Which substances do not allow electric current to pass through them?
a)
Conductor
b)
Semiconductor
c)
Insulator
d)
None of these
27.
Which materials conduct electricity partially?
a)
Conductor
b)
Semiconductor
c)
Insulator
d)
None of these
28.
________ is an example of insulator material.
a)
Mica
b)
Silicon
c)
Copper
d)
Gold
29.
The best semiconductor material is __________.
a)
Silicon
b)
Germanium
c)
carbon
d)
All of these
30.
Which of the following is an example of conductor material?
a)
Gold
b)
Germanium
c)
Mica
d)
Plastic
31.
Which of the following is an example of a conductor?
a)
wood
b)
metal
c)
rubber
d)
rock
32.
Which of the following material is having high melting and boiling point?
a)
Conductor
b)
Semiconductor
c)
Insulator
d)
None of these
33.
Which of the following materials ALLOW heat and electricity to move easily through them?
a)
Conductor
b)
Semiconductor
c)
Insulator
d)
None of these
34.
Which of the following is an example of conductor material?
a)
Gold
b)
Germanium
c)
Mica
d)
Plastic
35.
Which of the following is an example of a conductor?
a)
wood
b)
metal
c)
rubber
d)
rock
36.
Which of the following material is having high melting and boiling point?
a)
Conductor
b)
Semiconductor
c)
Insulator
d)
None of thes
37.
Which of the following materials ALLOW heat and electricity to move easily through them?
a)
Conductor
b)
Semiconductor
c)
Insulator
d)
None of these
38.
esistor is an _________________ component/device.
a)
Passive
b)
Active
c)
both a & b
d)
none of these
39.
An electronic component which can procees the signal is called ______________
a)
Passive
b)
Active
c)
both a & b
d)
none of these
40.
Transistor is an _________________ component/device.
a)
Passive
b)
Active
c)
both a & b
d)
none of these
41.
Inductor is an _________________ component/device.
a)
Passive
b)
Active
c)
both a & b
d)
none of these
42.
An electrical component that does not generate power but dissipates, stores, and/or releases are called as _____________
a)
Passive
b)
Active
c)
both a & b
d)
none of these
43.
Resistor is an _________________ component/device.
a)
Passive
b)
Active
c)
both a & b
d)
none of these
44.
An electronic component which can procees the signal is called ______________
a)
Passive
b)
Active
c)
both a & b
d)
none of these
45.
Transistor is an _________________ component/device.
a)
Passive
b)
Active
c)
both a & b
d)
none of these
46.
Inductor is an _________________ component/device.
a)
Passive
b)
Active
c)
both a & b
d)
none of these
47.
What is the unit of resistance?
a)
Ohm
b)
Mho
c)
Coulomb
d)
henry
48.
What are the main characteristics of a resistor?
a)
Current and Voltage
b)
Current and Power
c)
Resistance and Power
d)
Resistance and Current
49.
Which is the most common type of Resistor?
a)
Wire Wound Resistor
b)
Carbon Resistor
c)
Film Type Resistor
d)
Fusible Resistor
50.
The capacitor plates are separated by an insulating material known as a _______________
a)
Insulators
b)
Isolators
c)
Both a and b
d)
None of the these
51.
What is the measure of capacitance?
a)
Watts
b)
Henry
c)
Farads
d)
none of these
52.
How does the inductor store energy?
a)
Electric field
b)
Electromagnetic field
c)
Magnetic field
d)
none of these
53.
An inductor opposes any change in ___________
a)
Voltage
b)
Current
c)
Frequency
d)
none of these
54.
What is the ability of an inductor to store magnetic energy called?
a)
impedance
b)
capacitance
c)
inductance
d)
Resistance
55.
Choose the odd one out.
a)
rubber
b)
wood
c)
plastic
d)
copper
56.
Which materials allow the current to pass through them?
a)
good material
b)
bad material
c)
conductor
d)
insulator
57.
Which materials do not allow the current to pass through them?
a)
good material
b)
bad material
c)
conductor
d)
insulator
58.
"Nail" belongs to which category of materials
a)
insulator
b)
iron
c)
conductor
d)
all
59.
Choose the odd one out.
a)
rubber
b)
wood
c)
plastic
d)
copper
60.
Which materials allow the current to pass through them?
a)
good material
b)
bad material
c)
conductor
d)
insulator
61.
Which materials do not allow the current to pass through them?
a)
good material
b)
bad material
c)
conductor
d)
insulator
62.
Bare wire used for overhead transmission and for underground wiring is made up of what metals?
a)
copper or aluminium
b)
thermoplastic material
c)
insulated wire
d)
heat, moisture and flame resistant material
63.
What information is required to select correct wire gauge?
a)
length and size
b)
ampere and wattage
c)
type of insulator
d)
all
64.
Why each wire in 3 -core cable is insulated?
a)
to keep wire strands warm
b)
to keep wire strand cool
c)
to prevent electrical connection between each strand
d)
none
65.
The size of the cable 7/1.4 indicates
a)
7 indicates no:of conductor ; 1.4 indicates diameter of conductor
b)
7 indicates the diameter of conductor and 1.4 indicates no : of conductor
c)
7 is wire gauge and i.4 is diameter of conductor
d)
none
66.
SWG stands for __________.
a)
standard wire gauge
b)
simple wire gauge
c)
stranded wire gauge
d)
s-wire gauge
67.
In SWG measuring system what do the higher wire gauge number indicate?
a)
higher diameter of conductor
b)
lesser diameter of conductor
c)
very good conductor
d)
high current carrying conductor
68.
The current carrying capacity of a paticular cross sectional area of the wire conductor depends on what factors?
a)
type of conductor
b)
type of insulator
c)
single phase and three phase
d)
all
69.
19/1.80 this fraction indicates what parameters of a wire conductor?
a)
19 no :of strands 1.8 indicates cross sectional area
b)
19 indicates no: of strands 1.8 indicates dia i n mm
c)
19 indicates no: of cables , 1.8 indicatesdia in mm
d)
all
70.
SWG wire gauge indicates diameter of wire gauge in which unit?
a)
in mm
b)
in inch
c)
in both units
d)
none
71.
While selecting the wire size one should consider ______.
a)
future load
b)
length of the cable run
c)
permissible voltage drop in the cable
d)
all
72.
Bare wire used for overhead transmission and for underground wiring is made up of what metals?
a)
copper or aluminium
b)
thermoplastic material
c)
insulated wire
d)
heat, moisture and flame resistant material
73.
What information is required to select correct wire gauge?
a)
length and size
b)
ampere and wattage
c)
type of insulator
d)
all
74.
Why each wire in 3 -core cable is insulated?
a)
to keep wire strands warm
b)
to keep wire strand cool
c)
to prevent electrical connection between each strand
d)
none
75.
What is the S.I unit of elctric current?
a)
amperes
b)
volts
c)
ohm
d)
none of these
76.
The device use to measure current known as
a)
Digital ammeter
b)
analog ammeter
c)
both are correct
d)
none of these
77.
1 ampere is equal to-----------
a)
1000milli-ampere
b)
100milli-ampere
c)
1milli-ampere
d)
100000milli-ampere
78.
Ammeter is connected in --------with circuit
a)
parallel
b)
series
c)
combination of series and parallel
d)
neither in series nor in parallel
79.
Flow of electron is known as _____.
a)
voltage
b)
current
c)
resistance
d)
potential difference
80.
What is the S.I unit of elctric current?
a)
amperes
b)
volts
c)
ohm
d)
none of these
81.
The device use to measure current known as
a)
Digital ammeter
b)
analog ammeter
c)
both are correct
d)
none of these
82.
Flow of electron is known as _____.
a)
voltage
b)
current
c)
resistance
d)
potential difference
83.
Full form of CRO is-----------
a)
cathode-reflect oscilloscope
b)
cathode-ray oscilloscope
c)
cathode-ray optimisation
d)
cathode-ray tube oscilloscope
84.
Digital Multimeter and Analog Multimeter is the types of __________
a)
Multimeter
b)
Digital ammeter
c)
voltmeret
d)
CRO
85.
What can multimeters measure?
a)
frequency
b)
Time period
c)
resistance
d)
none of these
86.
What does the conductivity of metals depend upon?
a)
The nature of the material
b)
Number of free electrons
c)
Resistance of the metal
d)
Number of electrons
87.
Which part of nucleus is positively charged?
a)
nucleus
b)
atom
c)
proton
d)
electron
88.
Which part of an atom is neutrally charged?
a)
proton
b)
electron
c)
shell
d)
neutron
89.
All matters are made up of ___________
a)
atom
b)
molecules
c)
nucleus
d)
proton
90.
What is the unit of potential difference?
a)
Amp
b)
Volt
c)
V
d)
Ohm
91.
Which part of nucleus is positively charged?
a)
nucleus
b)
atom
c)
proton
d)
electron
92.
Which part of an atom is neutrally charged?
a)
proton
b)
electron
c)
shell
d)
neutron
93.
ll matters are made up of ___________
a)
atom
b)
molecules
c)
nucleus
d)
proton
94.
What is the unit of potential difference?
a)
Amp
b)
Volt
c)
V
d)
Ohm
95.
What is the SI unit of current?
a)
Coulomb ©
b)
Ampere (A)
c)
Farad (F)
d)
Newton (N)
96.
Which of these is a correct definition of conventional current?
a)
Current that flows from lower potential to higher potential
b)
The current which remains static
c)
Current constituted by the flow of ions
d)
Current that flows from higher potential to lower potential
97.
Which type of current is flowing through a circuit?
a)
Static current
b)
Conventional current
c)
Electronic current
d)
Potential current
98.
Resistance is a measure of a material’s opposition to _______.
a)
voltage
b)
current
c)
electric force.
d)
movement of protons.
99.
What is the SI unit of Reistance?
a)
Ohm
b)
Volt
c)
Ampere (A)
d)
Farad (F)
100.
Ohm’s law states which relationship between electrical quantities?
a)
volts = current times the resistance
b)
volts = current divided by amps
c)
volts = coulombs divided by charge
d)
volts = resistance times charge
101.
What is the Voltage of a circuit that has a resistance of 5 Ω and a current of 2 A?
a)
25 V
b)
2.5 V
c)
0.4 V
d)
10 V
102.
Resistance ______.
a)
"slows down" electrons
b)
"speeds up" electrons
c)
Moving electrons
d)
"pushes" electrons
103.
Current entering and leaving a point in a circuit should be
a)
equal
b)
decreasing
c)
increasing
d)
variable
104.
The total current in a parallel circuit equals the sum of the individual branch currents."
a)
Ohm's Law
b)
Kirchhoff's Voltage Law
c)
Kirchhoff's Current Law
d)
Bolen's Law
105.
The sum of all voltage drops in a series circuit equals the total applied voltage." This is know as what?
a)
Ohm's Law
b)
Kirchhoff's Voltage Law
c)
Kirchhoff's Current Law
d)
Bolen's Law
106.
Sum of e.m.f around any loop equals
a)
sum of current
b)
sum of potential difference
c)
sum of resistances
d)
sum of charges passing through it per second
107.
Which of the following is NOT a protective device?
a)
Fuses
b)
Circuit Breakers
c)
Relay
d)
GFCI
108.
A simple protective device which is enclosed with a length of wire that has a low melting point is known as __________.
a)
Fuse
b)
Resistor
c)
Thermistor
d)
MCB
109.
election of fuse is based on
a)
Steady load
b)
Fluctuating load
c)
A & B
d)
None of these
110.
What is the full form of MCB?
a)
Miniature Circuit Broker
b)
Maximum Circuit Breaker
c)
Miniature Circuit Breaker
d)
Minimum Circuit Breaker
111.
MCB is a small protection device used to protect electric circuit form overload or over current. What type of device is the MCB?
a)
Fuse
b)
Magnetic Switch
c)
Electromagentic switch
d)
Two Way Switch
112.
The type B MCB trips _____________ times the rated current.
a)
3 to 5
b)
5 to 10
c)
10 to 20
d)
more than 50
113.
The type C MCB trips _____________ times the rated current.
a)
3 to 5
b)
5 to 10
c)
10 to 20
d)
more than 50
114.
The type D MCB trips _____________ times the rated current.
a)
3 to 5
b)
5 to 10
c)
10 to 20
d)
more than 50
115.
What is the full form of ELCB?
a)
Electrolytic Circuit Breaker
b)
Earth Locking Circuit Breaker
c)
Earth Leakage Circuit Breaker
d)
Electric Leakage Circuit Breaker
116.
ELCB is _____________________ operated device.
a)
Voltage
b)
Current
c)
Power
d)
Frequency
117.
What is the full form of RCCB?
a)
Residual Capacitive Circuit Breaker
b)
Residual Current Circuit Breaker
c)
Residual Closed Circuit Breaker
d)
Residual Counter Circuit Breaker
118.
Earth Leakage Circuit Breaker is also known as ______________
a)
Residual Current Circuit Breaker
b)
Miniature Case Circuit Breaker
c)
Oil Control Breaker
d)
Moulded Circuit Breaker
119.
Which single device that ensures efficient protection from electrical hazard of shock and fire caused by over current, short circuit,earth leakage and earth fault?
a)
Miniature Circuit Breaker
b)
Earth Leakage Circuit Breaker
c)
ELCB +RCCB Combination Breaker
d)
Miniature Current Circuit Breaker
120.
The size of the earth or ground wire is based on what factors?
a)
aximum fault current carrying through the ground wire
b)
rated current carrying capacity of the service line
c)
depends on the soil resistance
d)
both ((A)and (c)
121.
What is earth wire or ground wire made of?
a)
galvanized steel
b)
copper
c)
aluminium
d)
iron
122.
Why is generally grounding provided?
a)
only for the safety of the equipment
b)
only for the safety of the operating personnel
c)
both ((A)and (b)
d)
none of the above
123.
Ground resistance should be designed such that _______.
a)
grounding resistance should be as low as possible
b)
grounding resistance should be as high as possible
c)
grounding resistance should be always zero
d)
none of the above
124.
Which of the following is not used as earth continuity conductor?
a)
water pipes
b)
gas pipes
c)
structural steel members
d)
all of the above.
100 %
