Lighting, Acoustics and Vertical Transportation - Building Services - Architecture and Planning Previous Year Questions

1

2007 · Architecture and Planning · Building Services · Lighting, Acoustics and Vertical Transportation

Architecture and Planning (AR) 2007

Parallel sound rays incident on a convex surface of a fibre-board will

A

converge and reduce in intensity

B

converge and increase in intensity

C

disperse and reduce in intensity

D

disperse and increase in intensity

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2

2007 · Architecture and Planning · Building Services · Lighting, Acoustics and Vertical Transportation

Architecture and Planning (AR) 2007

For incandescent lamps the distribution of total energy emission is

A

5 % light & 95 % heat

B

25 % light & 75 % heat

C

50 % light & 50 % heat

D

75 % light & 25 % heat

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3

2007 · Architecture and Planning · Building Services · Lighting, Acoustics and Vertical Transportation

Architecture and Planning (AR) 2007

Match the statements about elevators & escalators in Group I with True/False in Group II. Group I: P. Handling capacity of elevators for residential buildings as per Indian standards is 7.5 %, Q. Minimum height from the top floor to the bottom of the lift machine room should be 3,000 mm, R. Minimum width for escalators as per Indian standards is 1,000 mm, S. Recommended angle with the horizontal for escalators is 30°. Group II: 1. True, 2. False

A

P-1, Q-2, R-1, S-2

B

P-2, Q-2, R-2, S-1

C

P-2, Q-1, R-1, S-1

D

P-1, Q-2, R-2, S-1

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4

2007 · Architecture and Planning · Building Services · Lighting, Acoustics and Vertical Transportation

Architecture and Planning (AR) 2007

The lumen output required for the above lamp is

A

12,000

B

16,666

C

30,000

D

33,333

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5

2007 · Architecture and Planning · Building Services · Lighting, Acoustics and Vertical Transportation

Architecture and Planning (AR) 2007

The depreciation factor for the above lamp is

A

0.6

B

1.25

C

1.33

D

1.66

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6

2007 · Architecture and Planning · Building Services · Lighting, Acoustics and Vertical Transportation

Architecture and Planning (AR) 2007

The sound absorption power required in the auditorium in m²-sabins is approximately

A

250

B

400

C

600

D

800

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7

2007 · Architecture and Planning · Building Services · Lighting, Acoustics and Vertical Transportation

Architecture and Planning (AR) 2007

During a convocation programme in the same auditorium, the absorption power increases by 200 m²-sabins. The reverberation time in seconds will now be

A

0.4

B

0.6

C

0.8

D

1.2

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8

2008 · Architecture and Planning · Building Services · Lighting, Acoustics and Vertical Transportation

Architecture and Planning (AR) 2008

Luminaire efficiency is defined as the

A

sum of the light outputs of the lamps operating inside the luminaire to the ratio of the sum of the light output of the luminaire operating outside the luminaire.

B

sum of the individual light outputs of the lamps operating outside the luminaire to the ratio of the light output of the luminaire.

C

ratio of the light output of the luminaire to the sum of the individual light outputs of the lamps operating outside the luminaire.

D

ratio of the light output of the luminaire to the individual light output of the lamp operating outside the luminaire.

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9

2008 · Architecture and Planning · Building Services · Lighting, Acoustics and Vertical Transportation

Architecture and Planning (AR) 2008

Identify the formula for calculating the reverberation time (t) of a hall of volume V cu.m., where S represents sound absorption area.

A

t = 16V / S

B

t = 0.16V² / S

C

t = 0.16V / S

D

t = 16V / S²

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10

2008 · Architecture and Planning · Building Services · Lighting, Acoustics and Vertical Transportation

Architecture and Planning (AR) 2008

A school auditorium has a capacity of 800 persons. Considering 3.5 cu.m. of volume per person and reverberation time of 1.25 sec, the total sound absorption area required would be:

A

348 sq.m.

B

358 sq.m.

C

368 sq.m.

D

378 sq.m.

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11

2009 · Architecture and Planning · Building Services · Lighting, Acoustics and Vertical Transportation

Architecture and Planning (AR) 2009

The reverberation time of the empty hall (in seconds) will be

Check answer

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12

2009 · Architecture and Planning · Building Services · Lighting, Acoustics and Vertical Transportation

Architecture and Planning (AR) 2009

When the same seminar hall is filled with audience, the reverberation time is recorded as 2.0 seconds. Then the total absorption of all acoustic materials (in m^2-sabines) will be

Check answer

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13

2010 · Architecture and Planning · Building Services · Lighting, Acoustics and Vertical Transportation

Architecture and Planning (AR) 2010

Primary colours of natural light are

A

Red, Blue, Yellow

B

Red, Green, Blue

C

Red, Violet, Yellow

D

Red, Green, Yellow

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14

2010 · Architecture and Planning · Building Services · Lighting, Acoustics and Vertical Transportation

Architecture and Planning (AR) 2010

Considering the total heat losses from all fluorescent lamps to be 79%, the Heating load (Btu / hr) due to office illumination with 48 ceiling mounted luminaires, each containing four 40 W fluorescent lamps and flat surface diffusers will be

A

10000 Btu / hr

B

15000 Btu / hr

C

17500 Btu / hr

D

21000 Btu / hr

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15

2010 · Architecture and Planning · Building Services · Lighting, Acoustics and Vertical Transportation

Architecture and Planning (AR) 2010

From the following, identify the factors which influence the loudness of sound to a listener in an enclosure
P. Loudness of sound at source
Q. Directivity factor
R. Length/Width ratio of the enclosure
S. Distance between sound source and listener
T. Sound absorption co-efficient of all enclosing surfaces
U. Surface area of enclosing surfaces
V. Inside temperature level of the enclosure

A

P, Q, S, Y, V

B

Q, R, S, U, Y

C

P, R, S, U, V

D

P, Q, S, U, V

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16

2010 · Architecture and Planning · Building Services · Lighting, Acoustics and Vertical Transportation

Architecture and Planning (AR) 2010

Match the lamps in Group I with their Colour Rendering Index (CRI) in Group II
Group I
P. Mercury Vapour
Q. Metal Halide
R. High-pressure sodium
S. Low-pressure sodium
Group II
1. 65 - 70
2. 40 - 55
3. 20 - 25
4. 60 - 64

A

P - 4, Q - 2, R - 1, S - 3

B

P - 3, Q - 2, R - 4, S - 1

C

P - 2, Q - 1, R - 4, S - 3

D

P - 4, Q - 3, R - 2, S - 1

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17

2010 · Architecture and Planning · Building Services · Lighting, Acoustics and Vertical Transportation

Architecture and Planning (AR) 2010

In a display window of height H = 8.66 m, of a retail store, a luminaire of intensity L is mounted at a distance L = 5 m away from the rear. Its light beam is cast at an angle of 45° from the ceiling, as shown in the figure alongside.
The ratio of illumination at points P₁ and P₂ is

A

1 : √3

B

√3 : 2

C

√2 : 1

D

1 : 2

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18

2010 · Architecture and Planning · Building Services · Lighting, Acoustics and Vertical Transportation

Architecture and Planning (AR) 2010

Assuming that each floor has one hose, the delivery rate (in litre per second) of the fire hose at greatest pressure is

A

75

B

78

C

81

D

84

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19

2011 · Architecture and Planning · Building Services · Lighting, Acoustics and Vertical Transportation

Architecture and Planning (AR) 2011

Maximum horizontal angle from the speaker in a seating area of a lecture theatre should be

A

70°

B

90°

C

120°

D

140°

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20

2011 · Architecture and Planning · Building Services · Lighting, Acoustics and Vertical Transportation

Architecture and Planning (AR) 2011

The reverberation time of the auditorium is

A

1.0 second

B

1.5 second

C

2.0 second

D

2.5 second

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