D:-Chlorination
Correct Answer:- Option-C
Question75:-The total land area that contributes surface runoff to a river or lake is called a
A:-Watershed
B:-Drainage basin
C:-Catchment area
D:-All of the above
Correct Answer:- Option-D
Question76:-In electrification the installation of decentralized facilities that are not connected to existing transmission
and/or distribution grids
A:-Grid electrification
-Off-grid electrification
C:-Both of the above
D:-None of the above
Correct Answer:- Option-B
Question77:-A brittle form of iron which is weaker in tension than in compression. It has a relatively low melting point,good
fluidity, castability, excellent machinability and wear resistance
A:-Wrought iron
B:-Cast iron
C:-Both of the above
D:-None of the above
Correct Answer:- Option-B
Question78:-What is FRP?
-Fiber Reinforced Polymers
B:-Fiber Reinforced Plastic
C:-Foam Reinforced Polymers
D:-Foam Reinforced Plastic
Correct Answer:- Option-A
Question79:-The fire performance of timber is dependent on the
A:-Charring rate
B:-The loss in strength
C:-Modulus of elasticity
D:-All of the above
Correct Answer:- Option-D
Question80:-The air conditioning offers whole-house or large-commercial-space cooling, and often offers moderate
multi-zone temperature control capability by the addition of air-louver-control boxes
A:-Central air conditioning
B:-Split system
C:-Portable unit
D:-All of the above
Correct Answer:- Option-A
Question81:-The components of an ecosystem that are all of the nonliving elements. They include the water, the air, the
temperature and the rocks and minerals that make up the soil is known 25
A:-Biotic
-Abiotic
C:-Terrestrial
D:-None of the above
Correct Answer:- Option-B
Question82:-The components of ecosystems include all the plants, animals, fungi and microorganisms that make up
ecological communities is called
A:-Abiotic
B:-Terrestrial
C:-Biotic
D:-None of the above
Correct Answer:- Option-C
Question83:-All types of ecosystem fall into one of two categories: terrestrial or aquatic. Terrestrial ecosystems are
A:-Land-based
B:-Water-based
C:-Air-based
D:-All of the above