CM 2112 Exam 1 Ali Kazemian UPDATED ACTUAL
Questions and CORRECT Answers
Question: 1. During the slump stability (segregation also be evaluated by
Answer:
flow test (ASTM C1611) the True resistance) of SCC can visual inspection.
Question: 2. Flexural strength of around .... of its compressive tensile strength is pressive
strength.
Answer:
plain concrete is usually 15% - 10% strength, while only about .... of its com-
Question: 3. In normal conditions, during the first 0.5 ter-cement contact) the resulting
slump
Answer:
the hydration reactions True hour (after the initial waare not significant, and loss is
negligible.
Question: 4. Plastic shrinkage cracking evaporates from the faster than it can travel the
bleeding process.
Answer:
occurs when water True surface of fresh concrete to the surface during
Question: 5. Portland cement production tensive AND carbon-intensive
Answer:
is an energy-in- True process.
Question: 6. SCC formwork pressure tional concrete, due
Answer:
is lower than conven- False to its workability.
Question: 7. The chemical reactions ment and water are
Answer:
between Portland ce- Hydration Reactions called:
Question: 8. The main disadvantages struction material EXCEPT:
, Answer:
of concrete as a con- Flammability include all of the followings,
Question: 9. This is the most universally concrete quality:
Answer:
Compressive strength used measure for
Question: 10. Traditional specifications crete strength are
Answer:
and tests for con- Specimens cured under standard tembased on ... perature-humidity
conditions for 28 days
Question: 11. Two types of concrete pumps and peristaltic pumps, the concrete the pump
by gravity peristaltic pumps, ing blades in the hopper.
Answer:
pumps are piston True pumps. In the piston in the hopper is fed into aided by suction,
while in the concrete is fed by rotat-
Question: 12. Type IV (four) Portland
Answer:
cement is... a special cement with low heat of hydration.
Question: 13. When designing a W/CM ratio leads to chanical strength.
Answer:
concrete mixture, a higher False higher shrinkage and me-
Question: 14. Which of the following proportions and properties
Answer:
statements on concrete The more aggregate used, the higher is NOT accurate? the cost
of the concrete.
Question: 15. Which of the following workability is correct?
Answer:
statements on concrete Consistency is a close indication of workability.
Question: 16. Which of the following inforced concrete
Answer:
Questions and CORRECT Answers
Question: 1. During the slump stability (segregation also be evaluated by
Answer:
flow test (ASTM C1611) the True resistance) of SCC can visual inspection.
Question: 2. Flexural strength of around .... of its compressive tensile strength is pressive
strength.
Answer:
plain concrete is usually 15% - 10% strength, while only about .... of its com-
Question: 3. In normal conditions, during the first 0.5 ter-cement contact) the resulting
slump
Answer:
the hydration reactions True hour (after the initial waare not significant, and loss is
negligible.
Question: 4. Plastic shrinkage cracking evaporates from the faster than it can travel the
bleeding process.
Answer:
occurs when water True surface of fresh concrete to the surface during
Question: 5. Portland cement production tensive AND carbon-intensive
Answer:
is an energy-in- True process.
Question: 6. SCC formwork pressure tional concrete, due
Answer:
is lower than conven- False to its workability.
Question: 7. The chemical reactions ment and water are
Answer:
between Portland ce- Hydration Reactions called:
Question: 8. The main disadvantages struction material EXCEPT:
, Answer:
of concrete as a con- Flammability include all of the followings,
Question: 9. This is the most universally concrete quality:
Answer:
Compressive strength used measure for
Question: 10. Traditional specifications crete strength are
Answer:
and tests for con- Specimens cured under standard tembased on ... perature-humidity
conditions for 28 days
Question: 11. Two types of concrete pumps and peristaltic pumps, the concrete the pump
by gravity peristaltic pumps, ing blades in the hopper.
Answer:
pumps are piston True pumps. In the piston in the hopper is fed into aided by suction,
while in the concrete is fed by rotat-
Question: 12. Type IV (four) Portland
Answer:
cement is... a special cement with low heat of hydration.
Question: 13. When designing a W/CM ratio leads to chanical strength.
Answer:
concrete mixture, a higher False higher shrinkage and me-
Question: 14. Which of the following proportions and properties
Answer:
statements on concrete The more aggregate used, the higher is NOT accurate? the cost
of the concrete.
Question: 15. Which of the following workability is correct?
Answer:
statements on concrete Consistency is a close indication of workability.
Question: 16. Which of the following inforced concrete
Answer:
