Fresh Concrete MCQs : Here you will find MCQ Questions related to "Fresh Concrete" in Concrete Technology. These Fresh Concrete MCQ Questions Will help you to improve your Concrete Technology knowledge and will prepare you for various Examinations like Competitive Exams, Placements, Interviews and other Entrance Exmaniations
Question 1
When concrete is its plastic state, it is known as?
A. fresh concrete
B. old concrete
C. new concrete
D. None of the above
Question 2
Which of the following true about fresh concrete?
A. Fresh concrete can be easily molded to a durable structural member
B. It can be prepared on the spot and may give a wide range of properties from easily available raw materials
C. Both A and B
D. None of the above
Question 3
Which of the following are Properties of Fresh Concrete?
A. Workability
B. Segregation
C. Plastic shrinkage
D. All of the above
Question 4
Fresh Concrete is not recommended to be placed at a temperature above?
A. 10 degree
B. 20 degree
C. 30 degree
D. 40 degree
Question 5
Which hours after placing fresh concrete are of extreme importance?
A. 0 to 24
B. 24 to 72
C. 72 to 96
D. None of the above
Question 6
Segregation is usually caused by excessive vibration of cement
A. TRUE
B. FALSE
C. Can be true or false
D. Can not say
Question 7
How many types of tests are there to find workability?
A. 3
B. 4
C. 5
D. 6
Question 8
The water–cement ratio is the ratio of _______________
A. Volume of water to the volume of cement
B. Weight of water to the weight of cement
C. Density of water to the Density of cement
D. Weight of water to the weight of aggregates
Question 9
For complete hydration of cement the w/c ratio needed is ________
A. More than 0.25
B. More than 0.60
C. More than 0.25 but less than 0.35
D. More than 0.35 but less than 0.60
Question 10
Workability of concrete can be improved by __________
A. More sand
B. More cement
C. More fine aggregates
D. Fineness of coarse aggregate