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Objective Questions

Latest UKSSSC Technician Grade II Exam Question (Objective Questions), MCQ in English

Subjects : Electrical

Question Bank UKSSSC Technician Grade II Exam (Electrical) - English
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Electrical

Question 1Single Answer
The SI unit of electric charge is:
  1. A
    Ampere
  2. B
    Coulomb
  3. C
    Volt
  4. D
    Ohm
Question 2Single Answer
The charge on one electron is approximately:
  1. A
    1.6 × 10⁻¹⁹ C positive
  2. B
    9.1 × 10⁻³¹ C
  3. C
    1.6 × 10⁻¹⁹ C negative
  4. D
    6.25 × 10¹⁸ C
Question 3Single Answer
Electric current is the rate of flow of:
  1. A
    Charge
  2. B
    Resistance
  3. C
    Energy
  4. D
    Power
Question 4Single Answer
The SI unit of electric current is:
  1. A
    Volt
  2. B
    Watt
  3. C
    Coulomb
  4. D
    Ampere
Question 5Single Answer
One ampere is equal to:
  1. A
    1 W/s
  2. B
    1 J/C
  3. C
    1 C/s
  4. D
    1 Ω/V
Question 6Single Answer
Potential difference is measured in:
  1. A
    Watt
  2. B
    Joule
  3. C
    Ampere
  4. D
    Volt
Question 7Single Answer
One volt is equal to:
  1. A
    1 C/J
  2. B
    1 W/A²
  3. C
    1 A/s
  4. D
    1 J/C
Question 8Single Answer
The instrument used to measure current is:
  1. A
    Voltmeter
  2. B
    Megger
  3. C
    Wattmeter
  4. D
    Ammeter
Question 9Single Answer
A voltmeter is connected:
  1. A
    In series
  2. B
    In parallel
  3. C
    Across supply only
  4. D
    In short circuit
Question 10Single Answer
An ammeter is normally connected:
  1. A
    In parallel
  2. B
    Across earth
  3. C
    In series
  4. D
    Across neutral only
Question 11Single Answer
Electrical resistance opposes the flow of:
  1. A
    Current
  2. B
    Voltage
  3. C
    Power
  4. D
    Energy
Question 12Single Answer
The SI unit of resistance is:
  1. A
    Siemens
  2. B
    Farad
  3. C
    Henry
  4. D
    Ohm
Question 13Single Answer
According to Ohm's law:
  1. A
    V = I/R
  2. B
    V = IR
  3. C
    I = VR
  4. D
    R = VI
Question 14Single Answer
Current through a 10 Ω resistor connected to 20 V is:
  1. A
    0.5 A
  2. B
    20 A
  3. C
    10 A
  4. D
    2 A
Question 15Single Answer
Resistance of a circuit carrying 5 A at 100 V is:
  1. A
    5 Ω
  2. B
    10 Ω
  3. C
    50 Ω
  4. D
    20 Ω
Question 16Single Answer
Voltage across a 4 Ω resistor carrying 3 A is:
  1. A
    7 V
  2. B
    12 V
  3. C
    1.33 V
  4. D
    24 V
Question 17Single Answer
Electrical power is given by:
  1. A
    P = VI
  2. B
    P = V/I
  3. C
    P = I/V
  4. D
    P = R/V
Question 18Single Answer
The SI unit of electrical power is:
  1. A
    Joule
  2. B
    Coulomb
  3. C
    Watt
  4. D
    Kilowatt-hour
Question 19Single Answer
Electrical energy is commonly billed in:
  1. A
    Kilowatt-hour
  2. B
    Volt
  3. C
    Watt
  4. D
    Ampere-hour
Question 20Single Answer
One kilowatt-hour equals:
  1. A
    3.6 × 10³ J
  2. B
    3.6 × 10⁶ J
  3. C
    3.6 × 10⁵ J
  4. D
    3.6 × 10⁴ J
Question 21Single Answer
Power dissipated in a resistor can be expressed as:
  1. A
    V²I
  2. B
    I/R²
  3. C
    R/I
  4. D
    I²R
Question 22Single Answer
Another expression for resistive power is:
  1. A
    V²/R
  2. B
    R²/V
  3. C
    V/R²
  4. D
    VI²
Question 23Single Answer
A 100 W lamp operated for 10 hours consumes:
  1. A
    0.1 kWh
  2. B
    1 kWh
  3. C
    10 kWh
  4. D
    100 kWh
Question 24Single Answer
Kirchhoff's Current Law is based on conservation of:
  1. A
    Charge
  2. B
    Energy
  3. C
    Power
  4. D
    Resistance
Question 25Single Answer
Kirchhoff's Voltage Law is based on conservation of:
  1. A
    Energy
  2. B
    Charge
  3. C
    Current
  4. D
    Conductance
Question 26Single Answer
According to KCL, algebraic sum of currents at a junction is:
  1. A
    One
  2. B
    Zero
  3. C
    Infinite
  4. D
    Maximum
Question 27Single Answer
According to KVL, algebraic sum of voltages around a closed loop is:
  1. A
    Supply current
  2. B
    One
  3. C
    Zero
  4. D
    Resistance
Question 28Single Answer
If 5 A enters a junction and 2 A leaves through one branch, the remaining current is:
  1. A
    2 A
  2. B
    3 A
  3. C
    5 A
  4. D
    7 A
Question 29Single Answer
In a series circuit, current is:
  1. A
    Different in every resistor
  2. B
    Always zero
  3. C
    Same through all components
  4. D
    Proportional to resistance only
Question 30Single Answer
In a parallel circuit, voltage across each branch is:
  1. A
    Same
  2. B
    Zero
  3. C
    Different
  4. D
    Half supply voltage
Question 31Single Answer
Equivalent resistance of resistors connected in series is:
  1. A
    Product of resistances
  2. B
    Sum of resistances
  3. C
    Reciprocal of sum
  4. D
    Always smaller than smallest resistor
Question 32Single Answer
Two 10 Ω resistors in series have equivalent resistance of:
  1. A
    5 Ω
  2. B
    20 Ω
  3. C
    10 Ω
  4. D
    100 Ω
Question 33Single Answer
Two equal 10 Ω resistors connected in parallel give:
  1. A
    5 Ω
  2. B
    10 Ω
  3. C
    20 Ω
  4. D
    100 Ω
Question 34Single Answer
Equivalent resistance of parallel resistors is always:
  1. A
    Greater than largest resistance
  2. B
    Less than smallest resistance
  3. C
    Equal to largest resistance
  4. D
    Infinite
Question 35Single Answer
Three 6 Ω resistors connected in parallel have resistance:
  1. A
    18 Ω
  2. B
    2 Ω
  3. C
    3 Ω
  4. D
    6 Ω
Question 36Single Answer
Conductance is reciprocal of:
  1. A
    Resistance
  2. B
    Current
  3. C
    Voltage
  4. D
    Power
Question 37Single Answer
The SI unit of conductance is:
  1. A
    Tesla
  2. B
    Ohm
  3. C
    Weber
  4. D
    Siemens
Question 38Single Answer
Resistance of a conductor is directly proportional to its:
  1. A
    Length
  2. B
    Cross-sectional area
  3. C
    Diameter squared inversely
  4. D
    Conductivity
Question 39Single Answer
Resistance is inversely proportional to:
  1. A
    Length
  2. B
    Resistivity
  3. C
    Temperature in all materials
  4. D
    Cross-sectional area
Question 40Single Answer
Resistivity depends mainly on:
  1. A
    Shape only
  2. B
    Area only
  3. C
    Length only
  4. D
    Material and temperature
Question 41Single Answer
The unit of resistivity is:
  1. A
    Ω/m
  2. B
    S/m²
  3. C
    Ω·m²
  4. D
    Ω·m
Question 42Single Answer
Copper is widely used for wiring because of its:
  1. A
    High conductivity
  2. B
    High resistivity
  3. C
    High brittleness
  4. D
    Magnetic property
Question 43Single Answer
A material having nearly zero resistance is called:
  1. A
    Superconductor
  2. B
    Dielectric
  3. C
    Insulator
  4. D
    Semiconductor
Question 44Single Answer
A fixed resistor has:
  1. A
    Approximately constant resistance value
  2. B
    Continuously adjustable resistance
  3. C
    Zero resistance
  4. D
    Infinite resistance
Question 45Single Answer
A rheostat is a:
  1. A
    Fixed capacitor
  2. B
    Variable resistor
  3. C
    Transformer
  4. D
    Rectifier
Question 46Single Answer
A potentiometer is commonly used as a:
  1. A
    Inductor
  2. B
    Fuse
  3. C
    Voltage divider
  4. D
    Relay
Question 47Single Answer
An LDR changes resistance with:
  1. A
    Light intensity
  2. B
    Pressure
  3. C
    Magnetic flux
  4. D
    Humidity only
Question 48Single Answer
A thermistor changes resistance mainly with:
  1. A
    Temperature
  2. B
    Frequency
  3. C
    Voltage only
  4. D
    Light
Question 49Single Answer
In an NTC thermistor, resistance decreases when temperature:
  1. A
    Decreases
  2. B
    Increases
  3. C
    Remains constant
  4. D
    Becomes zero only
Question 50Single Answer
A carbon composition component is a type of:
  1. A
    Capacitor
  2. B
    Inductor
  3. C
    Resistor
  4. D
    Transformer
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