Quiz: Electrical Engineering
Exam: SSC JE
Topic: Utilization of electrical energy
Each question carries 1 mark.
Negative marking: 1/4 mark
Time: 10 Minute
Q1. Which of following method is not employed for lighting Calculation?
(a) Inverse square law
(b) Stefan Tube method
(c) Watts per square method
(d) Lumen method
Q2. Which of the following will need lowest level of illumination?
(a) Display
(b) fine engraving
(c) Railway platform
(d) Auditorium
Q3. A mercury lamp vapour lamp gives
(a) pink light
(b) Yellow light
(c) greenish blue light
(d) White light
Q4. Principles are used in street lighting is
(a) diffusion and specular reflection
(b) induction
(c) electromagnetic
(d) electrostatic
Q5. High pressure mercury discharge lamps are not used in
(a) park
(b) in the street light of play ground
(c) stage lighting
(d) drawing room
Q6. Which of the following lamp gives nearly monochromatic light?
(a) Sodium vapour lamp
(b) GLS lamp
(c) Tube light
(d) Mercury vapour lamp
Q7. Power factor is highest in case of
(a) mercury arc lamp
(b) sodium vapour lamp
(c) Tube lights
(d) GLS lamp
Q8. To prevent excessive brightness which type of lighting is used
(a) direct
(b) indirect
(c) general
(d) local
Q9. The most important factor with respect to lighting quality is
(a) color
(b) glare
(c) illumination
(d) uniform lighting
Q10. Arc can be produced by
(a) AC current only
(b) DC current only
(c) Either AC & DC current
(d) none of the above
Solution
S1. Ans. (b)
Sol. Stefan Tube method is not used for lighting calculation method.
S2. Ans. (c)
Sol. Railway platform
S3. Ans. (c)
Sol. greenish blue light
S4. Ans. (a)
Sol. diffusion and specular reflection
S5. Ans. (d)
Sol. drawing room
S6. Ans. (a)
Sol. Sodium vapour lamp
S7. Ans. (d)
Sol. Power factor is highest in case of GLS lamp.
S8. Ans. (b)
Sol. Indirect
S9. Ans. (b)
Sol. Glare
S10. Ans. (c)
Sol. Either AC or DC
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