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.Management Sciences
Category: Building Materials and Construction
Assertion A : Pure lime takes a long time to develop adequate strength. Reason R : Pure lime has slow hardening characteristics. Select your answer according to the coding system given below ?
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A. Both A and R are true and R is correct explanation of A
B. Both A and R are true and R is not a correct explanation of A
C. A is true but R is false
D. A is false but R is true
The differential settlement in case of foundations on sandv soils should not exceed_____________?
A. 25 mm
B. 40 mm
C. 65 mm
D. 100 mm
Compared to mild steel, cast iron has (1) high compressive strength (2) high tensile strength (3) low compressive strength (4) low tensile strength The correct answer is_________________?
A. (1) and (2)
B. (2) and (3)
C. (3) and (4)
D. (1)and(4)
As per IS specifications, the maximum final setting time for ordinary Portland cement should be_______________?
A. 30 minutes
B. 1 hour
C. 6 hours
D. 10 hours
Slate is formed by metamorphic action on______________?
A. shale
B. lime stone
C. sand stone
D. granite
The nominal size of the modular brick is_______________?
A. 190 mm x 90mmx 80 mm
B. 190 mm x 190 mm x 90 mm
C. 200 mm x 100 mm x 100 mm
D. 200 mm x 200 mm x 100 mm
The main ingredients of Portland cement are________________?
A. lime and silica
B. lime and alumina
C. silica and alumina
D. lime and iron
Which of the following has more fire resisting characteristics ?
A. marble
B. lime stone
C. compact sand stone
D. granite
The predominant constituent which is responsible for strength in granite is_____________?
A. quartz
B. feldspar
C. mica
D. none of the above
The proportions of lime and sand in the mortar normally used in brick construction are_______________?
A. 1:2
B. 1:4
C. 1:6
D. 1:8
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