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WorksheetsDay 114-Jan 24-worksheet-Diploma-DPC & termite proofing
Total questions: 15
Worksheet time: 8mins
Which of the following is NOT a cause of dampness listed in building structures?
Condensation
Improper drainage
Seismic vibration
Building orientation
The minimum thickness of hot bitumen used as a damp proofing material is:
1 mm
2 mm
3 mm
5 mm
Which metal sheet corrodes when in contact with lime or cement and hence requires bitumen coating?
Copper
Aluminium
Zinc
Lead
Brick used for damp proofing course should have water absorption less than:
10%
7.5%
5%
4.5%
The cavity width provided in cavity wall construction for damp proofing is generally:
1–3 cm
2–5 cm
4–10 cm
10–15 cm
Which method of damp proofing deposits rich cement mortar under pressure?
Integral damp proofing
Surface treatment
Guniting
Membrane damp proofing
Mastic asphalt is flexible and semi-rigid in nature.
True
False
Non-subterranean termites require continuous contact with soil for survival.
True
False
Assertion (A): Guniting requires curing after application. Reason (R): The cement mortar used in guniting must achieve strength through hydration.
Both A and R are true and R explains A
Both A and R are true but R does not explain A
A is true but R is false
A is false but R is true
Copper sheets used for DPC are generally of (a) mm thickness.
Lead foil sandwiched between asphalt felt is known as (a) .
Plastic sheets used as DPC are generally made of (a) polyethylene.
The mix proportion used in guniting is (a) (cement:sand).
The termite that cannot survive without soil contact is called (a) termite.
Most effective chemical mentioned for anti-termite treatment is (a) .
