Correct Answer: A
Explanation
Explanation
Retarding admixtures decrease the initial setting time of concrete
Correct Answered :
Wrong Answered :
A
Retarding admixtures decrease the initial setting time of concrete
B
Damp-proofing admixtures can act as accelerators at the initial stage of the hardening of concrete
C
Air entraining admixtures prevent the segregation and bleeding phenomenon in concrete
D
Pozzolanic admixtures decrease the possibility of thermal shrinkage in concrete
Retarding admixtures decrease the initial setting time of concrete
Correct Answered :
Wrong Answered :
A
Transit method
B
Graphical method
C
Bowditch`s method
D
Axis method
Option A is correct as per standard civil engineering principle.
Correct Answered :
Wrong Answered :
A
Same
B
More
C
Less
D
Zero
Option B is correct as per standard civil engineering principle.
Correct Answered :
Wrong Answered :
A
The workability of concrete is mainly affected by the water-cement ratio and aggregate-cement ratio.
B
The compaction factor for the concrete of very low workability is 0.78.
C
Concrete ball test is a sample laboratory test
D
Slump test of workability gives good results for the rich mix concrete.
Option C is correct as per standard civil engineering principle.
Correct Answered :
Wrong Answered :
A
0.075 m
B
0.095 m
C
0.065 m
D
0.085 m
Total quality cost is the sum of prevention, appraisal and failure costs.
Correct Answered :
Wrong Answered :
A
10 days
B
12 days
C
38 days
D
16 days
Option D is correct as per standard civil engineering principle.
Correct Answered :
Wrong Answered :
A
pressure relief valve
B
air relief
C
gate valve
D
cut off
Option D is correct as per standard civil engineering principle.
Correct Answered :
Wrong Answered :
A
Siphonage pipe
B
Soil pipe
C
PVC pipe
D
Galvanized Steel pipe
Option B is correct as per standard civil engineering principle.
Correct Answered :
Wrong Answered :
A
2000
B
2250
C
3200
D
3250
Minimum specific surface for OPC is 2250 cm?/g ensuring fineness.
Correct Answered :
Wrong Answered :
A
600
B
700
C
500
D
800
Option B is correct as per standard civil engineering principle.
Correct Answered :
Wrong Answered :