Concrete Technology Accelerators Retarders Online Exam Quiz
Concrete Technology Accelerators Retarders GK Quiz. Question and Answers related to Concrete Technology Accelerators Retarders. MCQ (Multiple Choice Questions with answers about Concrete Technology Accelerators Retarders
At normal temperatures addition of sugar _____________ per cent have little effect on the rate of hydration.
Options
A : .5-1
B : 1-2
C : .05-.1
D : .1-.2
Retarders used at grouting oil wells, where temperature is about _____________ oC.
Options
A : 100
B : 150
C : 200
D : 250
Minute spherical bubbles of size ranging from ______________ microns.
Options
A : 1-100
B : 5-80
C : 15-20
D : 50-60
Pick up the correct statement from the following.
Options
A : Calcium fluosilicates act as a retarders
B : CaCl2 acts as a retarders
C : Gypsum acts as a retarders
D : Gypsum acts as an accelerators
Setting time of cement increases by adding ____________
Options
A : Gypsum
B : CaCl2
C : NaOH
D : Hydrogen peroxide
Retarders are used to ___________
Options
A : Offset the accelerating effect of cold weather on the setting of concrete
B : Offset the accelerating effect of hot weather on the setting of concrete
C : Offset the Retarding effect of cold weather on the setting of concrete
D : Offset the Retarding effect of hot weather on the setting of concrete
Zinc is the example of retenders.
Options
A : True
B : False
C :
D :
NaOH is the example of retenders.
Options
A : True
B : False
C :
D :
What is accelerator?
Options
A : Which speed up the initial set of concrete
B : Which delays the initial set of concrete
C : Which speed up the final set of concrete
D : Which delays the final set of concrete
What is retender?
Options
A : Which speed up the initial set of concrete
B : Which delays the initial set of concrete
C : Which speed up the final set of concrete
D : Which delays the final set of concrete
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