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Latest SSC JE Electrical Engineering Exam Question (Objective Questions), MCQ in English

Subjects : General Engineering (Electrical)

Question Bank SSC JE Electrical Engineering Exam Paper 2 - English
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General Engineering (Electrical)

Question 1Single Answer
Connected load is 313 kW and maximum demand is 191.9 kW. Demand factor is:
  1. A
    61.3
  2. B
    163.1321
  3. C
    1.6313
  4. D
    0.613
Question 2Single Answer
Sum of individual maximum demands is 281.2 kW and group maximum demand is 214 kW. Diversity factor is:
  1. A
    0.314
  2. B
    1.314
  3. C
    131.4
  4. D
    0.761
Question 3Single Answer
A 165 kW load improves pf from 0.8 to 0.95. Capacitor rating required is about:
  1. A
    123.75 kvar
  2. B
    54.23 kvar
  3. C
    69.52 kvar
  4. D
    34.76 kvar
Question 4Single Answer
A 166 kW, 400 V, 3-phase load operates at 0.8 pf. Line current is:
  1. A
    518.75 A
  2. B
    239.6 A
  3. C
    299.5 A
  4. D
    149.75 A
Question 5Single Answer
A 3-phase line carries 28 A and has 0.218 Ω resistance per phase. Copper loss is:
  1. A
    0.018 kW
  2. B
    0.256 kW
  3. C
    0.513 kW
  4. D
    0.171 kW
Question 6Single Answer
Average load is 113.7 kW and maximum demand is 219 kW. Load factor is:
  1. A
    0.519 %
  2. B
    51.9 %
  3. C
    50 %
  4. D
    192.678 %
Question 7Single Answer
Connected load is 320 kW and maximum demand is 198.4 kW. Demand factor is:
  1. A
    0.62
  2. B
    62
  3. C
    1.6129
  4. D
    161.2903
Question 8Single Answer
Sum of individual maximum demands is 291.9 kW and group maximum demand is 221 kW. Diversity factor is:
  1. A
    0.757
  2. B
    1.321
  3. C
    0.321
  4. D
    132.1
Question 9Single Answer
A 172 kW load improves pf from 0.8 to 0.95. Capacitor rating required is about:
  1. A
    72.47 kvar
  2. B
    36.23 kvar
  3. C
    56.53 kvar
  4. D
    129 kvar
Question 10Single Answer
A 173 kW, 400 V, 3-phase load operates at 0.8 pf. Line current is:
  1. A
    312.13 A
  2. B
    156.06 A
  3. C
    249.7 A
  4. D
    540.62 A
Question 11Single Answer
A 3-phase line carries 35 A and has 0.225 Ω resistance per phase. Copper loss is:
  1. A
    0.276 kW
  2. B
    0.024 kW
  3. C
    0.827 kW
  4. D
    0.413 kW
Question 12Single Answer
Average load is 118.9 kW and maximum demand is 226 kW. Load factor is:
  1. A
    190.114 %
  2. B
    50 %
  3. C
    0.526 %
  4. D
    52.6 %
Question 13Single Answer
Connected load is 327 kW and maximum demand is 205 kW. Demand factor is:
  1. A
    1.5949
  2. B
    159.4896
  3. C
    0.627
  4. D
    62.7
Question 14Single Answer
Sum of individual maximum demands is 302.8 kW and group maximum demand is 228 kW. Diversity factor is:
  1. A
    0.753
  2. B
    0.328
  3. C
    132.8
  4. D
    1.328
Question 15Single Answer
A 179 kW load improves pf from 0.8 to 0.95. Capacitor rating required is about:
  1. A
    37.71 kvar
  2. B
    75.42 kvar
  3. C
    58.83 kvar
  4. D
    134.25 kvar
Question 16Single Answer
A 180 kW, 400 V, 3-phase load operates at 0.8 pf. Line current is:
  1. A
    324.76 A
  2. B
    259.81 A
  3. C
    562.5 A
  4. D
    162.38 A
Question 17Single Answer
A 3-phase line carries 42 A and has 0.232 Ω resistance per phase. Copper loss is:
  1. A
    1.228 kW
  2. B
    0.614 kW
  3. C
    0.409 kW
  4. D
    0.029 kW
Question 18Single Answer
Average load is 124.2 kW and maximum demand is 233 kW. Load factor is:
  1. A
    0.533 %
  2. B
    50 %
  3. C
    187.617 %
  4. D
    53.3 %
Question 19Single Answer
Connected load is 334 kW and maximum demand is 211.8 kW. Demand factor is:
  1. A
    1.5773
  2. B
    157.7287
  3. C
    63.4
  4. D
    0.634
Question 20Single Answer
Sum of individual maximum demands is 313.7 kW and group maximum demand is 235 kW. Diversity factor is:
  1. A
    133.5
  2. B
    0.335
  3. C
    0.7491
  4. D
    1.335
Question 21Single Answer
A 186 kW load improves pf from 0.8 to 0.95. Capacitor rating required is about:
  1. A
    139.5 kvar
  2. B
    39.18 kvar
  3. C
    61.14 kvar
  4. D
    78.36 kvar
Question 22Single Answer
A 187 kW, 400 V, 3-phase load operates at 0.8 pf. Line current is:
  1. A
    168.69 A
  2. B
    584.38 A
  3. C
    337.39 A
  4. D
    269.91 A
Question 23Single Answer
A 3-phase line carries 49 A and has 0.239 Ω resistance per phase. Copper loss is:
  1. A
    0.035 kW
  2. B
    0.574 kW
  3. C
    1.722 kW
  4. D
    0.861 kW
Question 24Single Answer
Average load is 129.6 kW and maximum demand is 240 kW. Load factor is:
  1. A
    185.185 %
  2. B
    50 %
  3. C
    0.54 %
  4. D
    54 %
Question 25Single Answer
Connected load is 341 kW and maximum demand is 218.6 kW. Demand factor is:
  1. A
    64.1
  2. B
    0.641
  3. C
    1.5601
  4. D
    156.0062
Question 26Single Answer
Sum of individual maximum demands is 324.8 kW and group maximum demand is 242 kW. Diversity factor is:
  1. A
    0.7452
  2. B
    1.342
  3. C
    134.2
  4. D
    0.342
Question 27Single Answer
Illuminance is measured in:
  1. A
    candela only
  2. B
    lux
  3. C
    watt
  4. D
    lumen
Question 28Single Answer
One lux equals:
  1. A
    one lumen per square metre
  2. B
    one watt per metre
  3. C
    one lumen per cubic metre
  4. D
    one candela per metre
Question 29Single Answer
Luminous flux is measured in:
  1. A
    watt-hour
  2. B
    lumen
  3. C
    lux
  4. D
    ohm
Question 30Single Answer
The lumen method is used for:
  1. A
    motor speed control
  2. B
    earth testing only
  3. C
    lighting estimation
  4. D
    cable capacitance
Question 31Single Answer
Earthing provides a low-impedance path for:
  1. A
    fault current
  2. B
    frequency
  3. C
    illumination
  4. D
    normal load power
Question 32Single Answer
Equipment earthing mainly protects:
  1. A
    power factor
  2. B
    motor speed
  3. C
    persons from shock
  4. D
    lamp efficiency
Question 33Single Answer
Earth resistance should generally be:
  1. A
    low
  2. B
    high
  3. C
    infinite
  4. D
    equal to load resistance
Question 34Single Answer
A fuse is connected in the:
  1. A
    equipment body
  2. B
    neutral only
  3. C
    earth conductor
  4. D
    live conductor
Question 35Single Answer
A switch is normally connected in the:
  1. A
    earth conductor
  2. B
    live conductor
  3. C
    equipment body
  4. D
    protective conductor
Question 36Single Answer
Cable size selection considers:
  1. A
    lamp shape
  2. B
    frequency only
  3. C
    current capacity and voltage drop
  4. D
    color only
Question 37Single Answer
Motor installation requires suitable:
  1. A
    lamp holder
  2. B
    energy meter only
  3. C
    bridge only
  4. D
    starter and protection
Question 38Single Answer
A 2.1 kW single-phase resistive installation at 230 V draws:
  1. A
    18.26 A
  2. B
    9.13 A
  3. C
    4.57 A
  4. D
    483 A
Question 39Single Answer
A 5.2 kW, 400 V, 3-phase installation at 0.8 pf draws:
  1. A
    7.51 A
  2. B
    16.25 A
  3. C
    9.38 A
  4. D
    4.69 A
Question 40Single Answer
A single-phase circuit carries 8 A over 13 m one-way. Conductor resistance is 0.01 Ω/m. Approximate loop voltage drop is:
  1. A
    1.04 V
  2. B
    Zero
  3. C
    2.08 V
  4. D
    4.16 V
Question 41Single Answer
For 104 lux over 44 m², lamp flux 2400 lm, CU=0.5, MF=0.8. Required lamps are about:
  1. A
    3.81 lamps
  2. B
    9.53 lamps
  3. C
    1.91 lamps
  4. D
    4.77 lamps
Question 42Single Answer
A 2.5 kW single-phase resistive installation at 230 V draws:
  1. A
    575 A
  2. B
    10.87 A
  3. C
    5.43 A
  4. D
    21.74 A
Question 43Single Answer
A 5.6 kW, 400 V, 3-phase installation at 0.8 pf draws:
  1. A
    10.1 A
  2. B
    8.08 A
  3. C
    5.05 A
  4. D
    17.5 A
Question 44Single Answer
A single-phase circuit carries 12 A over 17 m one-way. Conductor resistance is 0.01 Ω/m. Approximate loop voltage drop is:
  1. A
    Zero
  2. B
    2.04 V
  3. C
    8.16 V
  4. D
    4.08 V
Question 45Single Answer
For 108 lux over 48 m², lamp flux 2800 lm, CU=0.5, MF=0.8. Required lamps are about:
  1. A
    1.85 lamps
  2. B
    4.63 lamps
  3. C
    9.26 lamps
  4. D
    3.7 lamps
Question 46Single Answer
A 2.9 kW single-phase resistive installation at 230 V draws:
  1. A
    6.3 A
  2. B
    25.22 A
  3. C
    667 A
  4. D
    12.61 A
Question 47Single Answer
A 6 kW, 400 V, 3-phase installation at 0.8 pf draws:
  1. A
    8.66 A
  2. B
    10.83 A
  3. C
    18.75 A
  4. D
    5.41 A
Question 48Single Answer
A single-phase circuit carries 16 A over 21 m one-way. Conductor resistance is 0.01 Ω/m. Approximate loop voltage drop is:
  1. A
    13.44 V
  2. B
    3.36 V
  3. C
    6.72 V
  4. D
    Zero
Question 49Single Answer
For 112 lux over 52 m², lamp flux 2200 lm, CU=0.5, MF=0.8. Required lamps are about:
  1. A
    2.65 lamps
  2. B
    5.29 lamps
  3. C
    13.24 lamps
  4. D
    6.62 lamps
Question 50Single Answer
A 3.3 kW single-phase resistive installation at 230 V draws:
  1. A
    14.35 A
  2. B
    759 A
  3. C
    28.7 A
  4. D
    7.17 A
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