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Building Materials Booster Quiz -6
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Question 1
Assertion (A): Addition of calcium chloride while preparing concrete proves more effective with slow hardening Portland cement than with rapid hardening cement.
Reason (R): Calcium chloride is an effective accelerator in increasing the rate of relevant reaction.
Reason (R): Calcium chloride is an effective accelerator in increasing the rate of relevant reaction.
Question 2
The Rheological behavior of concrete, when represented by shear stress vs rate of shear, is characterized as
where :
shear stress,
(initial) yield value,
at-point plastic viscosity
at-point rate of shear
where :
shear stress,
(initial) yield value,
at-point plastic viscosity
at-point rate of shear
Question 3
Which of the following statements is/are correct regarding the strength of cement?
1) Particle sizes less than increases the viscous nature of the cement.
2) Finer particles in cement can be replaced by fly-ash to improve the strength.
1) Particle sizes less than increases the viscous nature of the cement.
2) Finer particles in cement can be replaced by fly-ash to improve the strength.
Question 4
Consider the following statements regarding refractory bricks in furnaces:
1) The furnace is fired at temperatures more than 1700 °C.
2) Silica content in the soil should be less than 40%.
3) Water absorption of bricks should not exceed 10%
4) Chrome bricks are known as basic bricks.
Which of the above statements are correct?
1) The furnace is fired at temperatures more than 1700 °C.
2) Silica content in the soil should be less than 40%.
3) Water absorption of bricks should not exceed 10%
4) Chrome bricks are known as basic bricks.
Which of the above statements are correct?
Question 5
Durability of concrete is directly proportional to ______.
Question 6
The compressive strength of 100 mm cube as compared to 150 mm cube is always _____.
Question 7
Which of the following statements is correct?
Question 8
Plaster of Paris can be obtained from the calcinations of ______.
Question 9
Quartzite is a ______.
Question 10
The standard size of brick as per Indian standards is _______.
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AE & JE ExamsMay 23AE & JE Exams