250+ TOP MCQs on Factors Affecting Creep and Elasticity and Answers

Concrete Technology Assessment Questions and Answers on “Factors Affecting Creep and Elasticity”.

1. The __________ the aggregate, the ________ is the magnitude of creep.
a) Stronger, more
b) Weaker, more
c) Stronger, less
d) Weaker, less
Answer: c
Clarification: The stronger the aggregate the more is the restraining effect and hence the less is the magnitude of creep.

2. The _________ the modulus of elasticity the _________ is the creep.
a) Higher, more
b) Lower, more
c) Higher, less
d) Lower, less
Answer: c
Clarification: It can be easily imagined that the higher the modulus of elasticity the less is the creep.

3. A ________ paste structure undergoes ________ creep.
a) Good, high
b) Poor, high
c) Good, average
d) Poor, low
Answer: b
Clarification: The amount of paste content and its quality is one of the most important factors influencing creep. A poorer paste structure undergoes higher creep.

4. Creep is _________ to the strength of concrete.
a) Equal
b) Similar
c) Directly proportional
d) Inversely proportional
Answer: d
Clarification: Creep increases with increase in water/cement ratio. In other words, it can also be said that creep is inversely proportional to the strength of concrete.

5. The rate of creep rapidly ________ with time.
a) Increase
b) Decrease
c) Doesn’t affect
d) Depends on the temperature
Answer: b
Clarification: The rate of creep rapidly decreases with time. The time taken by a concrete structure to attained creep is 5 years.

6. Aggregates with moisture movement and _________ elastic modulus cause a _________ amount of creep.
a) High, higher
b) Low, lower
c) High, lower
d) Low, higher
Answer: d
Clarification: Aggregates with moisture movement and low elastic modulus cause a large amount of creep.

7. The rate of creep generally _________ with the _________ of the size of aggregates.
a) Increase, increase
b) Decrease, decease
c) Increase, decrease
d) 2.5, 12mm
Answer: c
Clarification: The rate of creep generally decreases with the increase of the size of aggregates.

8. Static modulus of elasticity of concrete has been related to its ___________
a) Tensile strength
b) Compressive strength
c) External strength
d) Applied force
Answer: b
Clarification: Static modulus of elasticity of concrete has been related to its compressive strength by the various Standards.

9. Coefficient of thermal expansion of concrete is ________ coefficient of thermal expansion in aggregates.
a) Directly proportional
b) Inversely proportional
c) Equal
d) More than
Answer: a
Clarification: Coefficient of thermal expansion of concrete increases with the increase in coefficient of thermal expansion of aggregates and vice-versa.

Concrete Technology Assessment Questions,