SSC JE: Building Materials Quiz- 3
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Question 1
1) HAC provides high resistance to chemical attack.
2) HAC can be used in low temperatures conveniently.
3) Ultimate strength of HAC is same as OPC
4) HAC is much more expensive than OPC
Correct statements (s) is/are:
Question 2
Question 3
Question 4
Question 5
Reason R: A column can buckle w.r.t. either any of the two horizontal axis of cross section while a wall can buckle around only about one longitudinal axis.
Question 6
I. Blending
II. Digging
III. Unsoiling
IV. Tempering
V. Weathering
Question 7
Statement (II): High silica content in sand makes the brick brittle.
Question 8
List-I (Time)
A) 14 days
B) 21 days
C) 3 days
D) 7 days
List-II (Stripping)
1) Slabs (Props left under)
2) Removal of props to slab spanning over 4.5 m
3) Beam soffits (props left under)
4) Removal of props to beam spanning over 6 m
A - B - C - D
Question 9
1) Workability of concrete increases with the increase in the proportion of water content
2) Concrete having small-sized aggregates is more workable than that containing large-sized aggregate
3) For the same quantity of water rounded aggregates produce a more workable concrete mix as compared to angular and flaky aggregates
4) A concrete mix with no slump shown in the slump cone test indicates its very poor workability
Which of the above statements are correct
Question 10
1) Knots in a tree affect the continuity of fibres
2) Nail knots do not influence the strength of timber
3) Druxiness of wood is not a defect
4) Tall trees with twisted fibres gives good timber of poles
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