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
Explanation: Air-conditioning is one of the building services. It can be made based on desiccants, which are chemicals that remove moisture from the air.
2. In a building, to provide ultimate comfort to occupants ________ can be used.
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?
a) IS 27752
b) IS 38665
c) IS 14665
d) IS 27855
Explanation: IS 14665 gives specifications for elevators. It gives the number, capacity of elevator depending upon floor area and a number of floors to be served.
4. The slope of a ramp should not be more than:
a) 1 in 35
b) 1 in 20
c) 1 in 15
d) 1 in 10
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.
5. How many types of ventilation are there?
Explanation: The three types are natural (differential temperature of air), mechanical (fans), hybrid or mixed-mode ventilation (design of building).
6. A fire detector cannot detect:
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:
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: 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.
Sanfoundry Global Education & Learning Series – Basic Civil Engineering.
To practice all areas of Basic Civil Engineering, here is complete set of 1000+ Multiple Choice Questions and Answers.
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