MCQ on Illumination Engineering with Answers

MCQ on Illumination Engineering

1. A radiant energy from a hot body which produces the visual sensation upon the human eyes is known as ...........

A) Light

 B) Colour vision   

C) Lux  

D)candle Power

2. Utilization factor is also known as

A) Depreciation Factor

B) Glare

C) Absorption Factor

D) Co-Efficient of utilization

3. According to inverse square Law E=I/?

A) Area

B) r (distance)

C) r^2 

D) (area)^2

4. If lamp has flux of 1500 lumens what is MSCP 

A) 120

B) 150

C) 170

D) 100

5. Sodium Vapour Lamp gives ………………… coloured light

A)  White

 B) Pink

C) Yellow

 D) Blue

6. Mercury Vapour lamp having life approximately

A) 5000hrs

B) 200hrs

C) 1000hrs

D) 500hrs

7.  ……………… are not properties of filament material of incandescent lamp

A) High Resistivity

B) Low Vapour pressure

C) low melting point

D) high mechanical strength

8. Lamp selection for advertising 

A) Incandescent lamp

 B) Arc Lamp

 C) Neon Lamp

D) Fluorescent tube

9.  ………………. Lamp is selected for flood lighting

A) Halogen Lamp

 B) Incandescent Lamp

C) Fluorescent lamp

 D) CFL

10. …………………. Lamp is not used for street lighting purpose

A) Laser

B) Fluorescent Tube

 C) Mercury Vapour Lamp

 D) LED

11. The Efficiency of mercury iodine lamp is

A) 50 To  55 lumen/watt

B) 10 to 20 lumen/watt

C) 30 to 40 lumen/watt

D) 70 to 90 lumen/watt

12. Which of the following is lighting calculation method

A) Light flux  method

B) Watt/ m2 method

C) point to point method

D) All of the above

13. …………………… is the application of Auto Transformer Dimmer

A) Stage Lighting

B) Recreation Halls

C) Drama Theatres Lighting

D) All of the Above

14.  Purpose of light control is

A) to avoid shadow

B) Uniform Illumination on the area

C) Spacing of Luminaries

D) All of the Above

15.  In Auto Transformer dimmer many lamps can be controlled simultaneously

A) True

B) False

C) Depends upon output voltage

D) None of these

16. Which of the following is electronic dimmer

A) Auto transformer Dimmer

B) salt Water Dimmer

C) Triac Operated Dimmer

D) Two Winding transformer Dimmer

17.  ………………….. is not advantages of resistive type dimmer

A) Simple Operation

B) Less Maintenance

C) Less Power loss

D) Portable unit

18.……………………… is a sub types of variable resistance type Dimmer

A) Auto transformer Dimmer

B) salt Water Dimmer

C) Triac Operated Dimmer

D) Two Winding transformer Dimmer

19. Which of the following will need the highest level of illumination ?

(A) Proof reading

(B) Bed rooms

(C) Hospital wards

(D) Railway platforms.

20. Which of the following will need lowest level of illumination ?

(A) Displays

(B) Fine engraving

(C) Railway platform

(D) Auditoriums.

21. The illumination level in houses is in the range

(A) 10-20 lumen/m2

(B) 30 - 50 lumen/m2

(C) 40-75 lumen/m2

(D) 100-140 lumen/m2.

22. Which of the following application does not need ultra-violet lamps ?

(A) Medical purposes

(B) Aircraft cockpit dashboard lighting

(C) Car lighting

(D) Blue print machines.

 23. The illumination required for normal reading is around

(A) 500 lumens/m2

(B) 300 - 400 lumens/m2

(C) 100 - 250 lumens/m2

(D) 60 - 100 lumens/m2.

24. What is the reason  to provide daylight into interiors.

A) Healthier and more satisfactory indoor environment;

B)Economic advantage in energy savings;

C) Conserves earth’s resources and improves company's “Green Image.

D) All of the above.

25. The lighting of any interior should fulfil which functions ?

A. To ensure the safety of people using the building.

B. Enhance the visual environment.

C. To facilitate the performance of the variety of visual tasks required.

D. All of the above

26. Selection of light source for interior application depends upon:

A) Availability of daylight.

B) Area & colour of Room/Hall.

C) Non of the above

D) Both A & B.

27. Which of the following is NOT outdoor application of illumination

A) Street lights

B) fluid lights

C) Operation theatre

D) sport ground

28. Which of the following is general requirement of factory lighting:

A) operation & control should be simple.

B) safety precautions should be considered.

C) maintenance should be less & simple.

D) All of the above.

29. Which is NOT main objectives of street lighting.

A) To make the road clearly visible.

B) To produce more Glare.

C) To make the street more attractive.

D) To promote safety & convenience to the traffic.

30. Which of the Following is  important terms in road lighting:

A) span & spacing between poles.

B) Mounting Height

C) Both A & B

D) Non of the above.

31. ....... ........means flooding of large surface area with light from powerful sources using

projector.

A) street light.

 B) flood light.

C) platform lighting.

D) factory lighting.

32. which of the following lamps are  used for decorative purpose?

A) Flood Fight

B) Neon Lamp

C) Multi colour LED Lamp

D) All of the above

33. At the time of sports light,  designing factor are :

A) working plane, area.

B) factor waste light factor, depreciation factor

C) Either A or Either B

D) Both A & B.

34. For Railway platform lighting , recommended value of illumination is .........

A) 10-20 lux

B) 30 - 50 lux

C) 40-75 lux

D) 100-150 lux.

35. If any type of agriculture or horticulture premises if the natural sunlight is not available then .................. lamps are to be used

A) high pressure sodium lamps.

B)  metal halide

C) Either A or Either B

D) Both A & B.

36. In hospital at ICU Ward , recommended value of illumination is .........

A) 500- 700 lux.

B) 40-75 lux

C) 10-20 lux

D) 30 - 50 lux

37. In hospital at General Ward , recommended value of illumination is .........

A) 100- 200 lux.

B) 300- 500lux

C) 600-700 lux

D) 800 - 900 lux

38. The following types of lamps are used by light house at shipyards.

 A) Arc lamp.

 B)Metal halide Lamp .

 C) High wattages neon lamps.

 D) All of the Above.

39. Why CFL, LED lamps are used for malls and supermarkets ?

A) Above lamps provide required illumination.

B) Higher Energy saving.

C) High working hours & Less maintenance.

 D) All of the Above

 

40. In hospital at corridor & circulation , recommended value of illumination is .........

A) 15- 17 lux.

B) 40- 60lux

C) 10-20 lux

D) 300- 500lux