Ventilation and Air Conditioning - Building Services - Architecture and Planning Previous Year Questions

1

2008 · Architecture and Planning · Building Services · Ventilation and Air Conditioning

Architecture and Planning (AR) 2008

Function of Air Handling Unit in a building is to

A

purify and re-circulate the cool air.

B

supply purified bulk of air from outside to the window air-conditioner.

C

collect the stale air from the room and throw it outside the building.

D

act as a container in which air is carried from one place to the other.

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2

2008 · Architecture and Planning · Building Services · Ventilation and Air Conditioning

Architecture and Planning (AR) 2008

Recommended temperature and fresh air flow for HVAC systems in office buildings in India are

A

21°C with maximum of 30°C in summer and 25°C in winter, with fresh air provisions of 18-22 litres per second per person.

B

29°C with maximum of 32°C in summer and 36°C in winter, with fresh air provisions of 28-32 litres per second per person.

C

30°C with maximum of 36°C in summer and 32°C in winter, with fresh air provisions of 38-42 litres per second per person.

D

21°C with maximum of 24°C in summer and 22°C in winter, with fresh air provisions of 8-12 litres per second per person.

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3

2008 · Architecture and Planning · Building Services · Ventilation and Air Conditioning

Architecture and Planning (AR) 2008

Stack effect is

A

the process of supplying fresh air by electro-mechanical means both vertically and horizontally.

B

the tendency of hot air in a shaft to rise and create a draft of cool air intake.

C

the air-supply to a motor-driven louvered opening in basement.

D

the circulation of fresh air through windows from the plenum level.

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4

2008 · Architecture and Planning · Building Services · Ventilation and Air Conditioning

Architecture and Planning (AR) 2008

If a bedroom of 3m x 3m x 3m requires 3 air-changes per hour, and difference in temperature between inside and outside (ΔT) = 12 deg C, then Ventilation Heat Flow Rate (Qv) will be:

A

0.12 kW

B

0.35 kW

C

0.70 kW

D

1.17 kW

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5

2008 · Architecture and Planning · Building Services · Ventilation and Air Conditioning

Architecture and Planning (AR) 2008

For a given air velocity of 2m/s, the necessary cross-sectional area of supply-duct will be:

A

0.0375 sq.m.

B

0.0225 sq.m.

C

0.0113 sq.m.

D

0.0037 sq.m.

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6

2009 · Architecture and Planning · Building Services · Ventilation and Air Conditioning

Architecture and Planning (AR) 2009

The parameter that does NOT appear in a Psychrometric Chart is

A

Wind speed

B

Dry bulb temperature

C

Wet bulb temperature

D

Relative humidity

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7

2009 · Architecture and Planning · Building Services · Ventilation and Air Conditioning

Architecture and Planning (AR) 2009

A microwave oven of 3 kW rating is operated for 30 minutes, a hot water geyser of 1 kW rating is operated for 15 minutes, and 5 fluorescent lamps of 60 W are operated for 6 hours. The total power consumed (in kWh) will be

A

1.80

B

3.55

C

18.01

D

35.50

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8

2009 · Architecture and Planning · Building Services · Ventilation and Air Conditioning

Architecture and Planning (AR) 2009

If 20 lit/sec/person of air is extracted from the office, calculate the ventilation rate in terms of air changes/hour.

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9

2013 · Architecture and Planning · Building Services · Ventilation and Air Conditioning

Architecture and Planning (AR) 2013

Star Rating of an Air Conditioner is determined by its

A

Power Consumption

B

Energy Efficiency Ratio

C

Cooling Capacity

D

Power of Compressor

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10

2013 · Architecture and Planning · Building Services · Ventilation and Air Conditioning

Architecture and Planning (AR) 2013

If the area coverage of one sprinkler is 20 m², with a maximum and minimum spacing of 4.6 m and 1.8 m respectively, the minimum number of sprinklers required to be arranged in a regular orthogonal grid to cover the area of a 15 m x 20 m room would be ______.

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