Quiz: Electrical Engineering
Exam: SSC-JE
Topic: Miscellaneous
Each question carries 1 mark.
Negative marking: 1/4 mark
Time: 10 Minute
Q1. The SI unit of conductivity is:
(a) Ohm/meter
(b) Ohm-meter
(c) Siemens/meter
(d) Siemens – meter
Q2. The SI unit of conductance is:
(a) Coulomb
(b) Ohm
(c) Siemens
(d) Newton
Q3. A mho relay is used for protection of:
(a) Protection of a transformer against external fault
(b) Long Transmission Line
(c) Protection of a transformer against all the internal faults and external fault
(d) Medium Length lines
Q4. Slip ring of an induction motor is usually made up of
(a) Carbon
(b) Copper
(c) Aluminium
(d) Phosphor bronze
Q5. Condition for maximum power delivered in D.C. Generator is_______:
(a) Back EMF = (2 × Supply voltage)
(b) Back EMF = Supply voltage
(c) Back EMF = (Supply voltage/4)
(d) Back EMF = (Supply voltage/9)
Q6. Under-commutation gives rise to …….
(a) sparking at the leading edge of the brush
(b) sparking at the trailing edge of the brush
(c) no sparking at all
(d) sparking at the middle of the brush
Q7. Moving system of the induction type single phase energy meter has _
(a) heavy aluminium disc
(b) light aluminium disc
(c) medium aluminium disc
(d) no aluminium disc
Q8. On which load power factor zero voltage regulation will be achieved?
(a) 0
(b) 1
(c) Leading
(d) Lagging
Q9. Sumpner’s test is conducted on transformers to study effect of __
(a) Temperature
(b) Stray losses
(c) All-day efficiency
(d) none of these
Q10. What will be the total resistance of the given circuit?
(a) 200 Ω
(b) 125 Ω
(c) 50 Ω
(d) 150 Ω
