Concrete Technology Questions Bank Online Exam Quiz
Concrete Technology Questions Bank GK Quiz. Question and Answers related to Concrete Technology Questions Bank. MCQ (Multiple Choice Questions with answers about Concrete Technology Questions Bank
The minimum water to cement ratio for cement concrete to hydrate is _______
Options
A : 0.65
B : 0.5
C : 0.38
D : 0.27
Approximate percentage range of A2O3 in OPC is _______
Options
A : 17-25
B : 3-8
C : 3- 10
D : 4-15
What is the percentage of air by volume in Air Entraining Cement?
Options
A : 3-4
B : 10-11
C : 7-8
D : 9
What is the moisture content in slurry for wet process?
Options
A : 35-50%
B : 12%
C : 40-45%
D : 100%
What is the percentage of iron oxide in white cement?
Options
A : High
B : Very high
C : Medium
D : Very low
For complete hydration of cement the w/c ratio needed is ________
Options
A : More than 0.25
B : More than 0.25 but less than 0.35
C : More than 0.35 but less than 0.60
D : More than 0.60
The slurry, in its movement down the kiln, encounters a progressively higher temperature. At first, the water is driven off and __________ is liberated.
Options
A : SiO2
B : CO2
C : Gypsum
D : CaO
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