Factors Affecting PIC, Cold Weather Concreting Online Exam Quiz
Factors Affecting PIC, Cold Weather Concreting GK Quiz. Question and Answers related to Factors Affecting PIC, Cold Weather Concreting. MCQ (Multiple Choice Questions with answers about Factors Affecting PIC, Cold Weather Concreting
Concrete is not recommended to be placed at a temperature below __oC.
Options
A : 2
B : 3
C : 4
D : 5
If concrete is exposed to repeated freezing and thawing after the final set, the final qualities of the concrete may also be __
Options
A : Impair
B : Aid
C : Improve
D : Extend
IS: 7861 part-2 deals with __
Options
A : Hot weathering concrete
B : Cold weathering concrete
C : Air entertained concrete
D : OPC
Large temperature differentials within the concrete member may promote __
Options
A : Elastic shrinkage
B : Cracking
C : High workability
D : Good strength
The addition of glass fibers are in the range of __
Options
A : 0-6%
B : 10%
C : 15-20%
D : 20%-25%
When the concrete in fresh stage is exposed to freeze before certain pre-hardening period, compressive strength may get __
Options
A : Increased to 50%
B : Decreased to 50%
C : Increased to 25%
D : Decreased to 25%
Why the time period for removal of form work has to be increased.
Options
A : The development of strength of concrete is retarded compared with development at normal temperature
B : The development of strength of concrete is accelerate compared with development at normal temperature
C : The development of strength of concrete is advanced compared with development at normal temperature
D : The development of strength of concrete is precocious compared with development at normal temperature
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