Basic Civil Engineering Questions and Answers – Building Services
This set of Basic Civil Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Building Services”.
1. Desiccants are chemicals that:
a) Remove humidity
b) Add humidity
c) Add moisture
d) Remove moisture
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2. In a building, to provide ultimate comfort to occupants ________ can be used.
a) AC
b) HVAC
c) Ventilators
d) HAC
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a) IS 27752
b) IS 38665
c) IS 14665
d) IS 27855
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a) 1 in 35
b) 1 in 20
c) 1 in 15
d) 1 in 10
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5. How many types of ventilation are there?
a) 3
b) 4
c) 2
d) 5
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a) Radiation
b) Heat
c) Light
d) Smoke
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7. When exposed to fire, concrete has very little strength left after:
a) 500oC
b) 300oC
c) 200oC
d) 600oC
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a) True
b) False
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1. Desiccants are chemicals that:
a) Remove humidity
b) Add humidity
c) Add moisture
d) Remove moisture
View Answer
Answer: d
Explanation: Air-conditioning is one of the building services. It can be made based on desiccants, which are chemicals that remove moisture from air.
Explanation: Air-conditioning is one of the building services. It can be made based on desiccants, which are chemicals that remove moisture from air.
a) AC
b) HVAC
c) Ventilators
d) HAC
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Answer: b
Explanation: HVAC stands for heating ventilation and air-conditioning. This system is installed in buildings to give all the comforts to the occupants via a single unit.
3. Which IS codes gives details about elevators?Explanation: HVAC stands for heating ventilation and air-conditioning. This system is installed in buildings to give all the comforts to the occupants via a single unit.
a) IS 27752
b) IS 38665
c) IS 14665
d) IS 27855
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Answer: c
Explanation: IS 14665 gives specifications for elevators. It gives the number, capacity of elevator depending upon floor area and number of floors to be served.
4. The slope of a ramp should not be more than:Explanation: IS 14665 gives specifications for elevators. It gives the number, capacity of elevator depending upon floor area and number of floors to be served.
a) 1 in 35
b) 1 in 20
c) 1 in 15
d) 1 in 10
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Answer: c
Explanation: Ramps are provided in buildings to allow easy passage for elderly and physically challenged occupants. The slope should not be too steep, it should not be more than 1 in 15.
Explanation: Ramps are provided in buildings to allow easy passage for elderly and physically challenged occupants. The slope should not be too steep, it should not be more than 1 in 15.
a) 3
b) 4
c) 2
d) 5
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Answer: a
Explanation: The three types are natural (differential temperature of air), mechanical (fans),
hybrid or mixed-mode ventilation (design of building).
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6. A fire detector cannot detect:Explanation: The three types are natural (differential temperature of air), mechanical (fans),
hybrid or mixed-mode ventilation (design of building).
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a) Radiation
b) Heat
c) Light
d) Smoke
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Answer: c
Explanation: A fire detector can detect the three characteristics of fire-radiation (flame), heat and smoke. It cannot detect the light produced by a fire.
Explanation: A fire detector can detect the three characteristics of fire-radiation (flame), heat and smoke. It cannot detect the light produced by a fire.
7. When exposed to fire, concrete has very little strength left after:
a) 500oC
b) 300oC
c) 200oC
d) 600oC
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Answer: d
Explanation: Concrete decomposes when exposed to heat. Water evaporates, sand, gravel become molten lava like. Up to 200oC, no changes are noticed. At about 600oC, significant lossoccurs. At 800-1000oC, it completely gives in.
8. While calculating the handling capacity of lift, the weight of a person is taken as 65kg.Explanation: Concrete decomposes when exposed to heat. Water evaporates, sand, gravel become molten lava like. Up to 200oC, no changes are noticed. At about 600oC, significant lossoccurs. At 800-1000oC, it completely gives in.
a) True
b) False
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Answer: b
Explanation: Lifts can carry people from a range of just 4 to a good 20 number. To decide this,the weight of each person is to be considered. It is assumed as 68kg for one person.
Explanation: Lifts can carry people from a range of just 4 to a good 20 number. To decide this,the weight of each person is to be considered. It is assumed as 68kg for one person.
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