Concrete Technology MCQ Questions with answers and solutions Page 52

Q. In transportation of concrete by pumps ?

(A) the slump should not be less than 50 mm and more than 80 mm
(B) the water cement ratio should remain between 0.5 to 0.65
(C) the number of bends in a pipe line should be as small as possible
(D) all of the above

💬 Discuss

✅ Correct Answer: (D) all of the above

Published by Shiva Ram ⭐ 30.44K Points at 31-Aug-2022 01:11 pm in Concrete Technology

Q. The presence of lime in cement ?

(A) makes the cement sound
(B) does not provides strength to the cement
(C) lowers the clinkering temperature
(D) all of these

💬 Discuss

✅ Correct Answer: (A) makes the cement sound

Published by Rakesh Kumar ⭐ 28.44K Points at 15-Jul-2020 08:39 am in Concrete Technology

Q. The workability of concrete is expressed by ?

(A) water-cement ratio
(B) compaction factor
(C) slump value
(D) both (a) and (b)

💬 Discuss

✅ Correct Answer: (D) both (a) and (b)

Published by Gopal Sharma ⭐ 38.32K Points at 12-Sep-2020 08:44 am in Concrete Technology

Q. In order to prepare a test specimen, it is necessary to ?

(A) mix the cement and fine aggregate (sand) by dry hand
(B) mix the coarse aggregate
(C) mix water to the cement, fine aggregate and coarse aggregates
(D) all of the above

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✅ Correct Answer: (D) all of the above

Published by Kiran Rapria ⭐ 4.26K Points at 01-Jan-2025 03:40 pm in Concrete Technology

Q. Which of the following statement is correct ?

(A) Duff Abram's law is valid only when the concrete is of workable plasticity
(B) If the water-cement ratio is less, the strength of concrete will be less
(C) The strength of concrete decreases with age
(D) A rich mix of concrete provides low strength than a lean mix

💬 Discuss

✅ Correct Answer: (A) Duff Abram's law is valid only when the concrete is of workable plasticity

Published by Sandhya Thakur ⭐ 4.08K Points at 16-Jan-2025 01:03 am in Concrete Technology

Q. Rolled steel T-sections are used ?

(A) to transmit bracket loads to the columns
(B) with flat strips to connect plates in the steel rectangular tanks
(C) in both (a) and (b)
(D) none of these

💬 Discuss

✅ Correct Answer: (C) in both (a) and (b)

Published by Ritu Singhal ⭐ 4.43K Points at 07-Sep-2024 03:44 am in Concrete Technology

Q. The working shear stress on gross area of power-driven field rivets, as per IS: 800-1984, is ?

(A) 78.5 N/mm² member
(B) 94.5 N/mm²
(C) 102.5 N/mm²
(D) 157.5 N/mm²

💬 Discuss

✅ Correct Answer: (B) 94.5 N/mm²

Published by Neelam Mittal ⭐ 4.57K Points at 31-Dec-2024 02:59 am in Concrete Technology

Q. PERT stands for ?

(A) Programme Estimation and Reporting Technique
(B) Process Estimation and Review Technique
(C) Programme Evaluation and Review Technique
(D) Planning Estimation and Resulting Technique

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✅ Correct Answer: (C) Programme Evaluation and Review Technique

Published by Pooja ⭐ 4.41K Points at 01-Dec-2024 05:30 pm in Concrete Technology

Q. When float of an activity is negative ?

(A) it represents a situation where extra resources are available and the completion of project is not delayed
(B) it represents that a programme falls behind schedule and additional resources are required to complete the project in time
(C) the activity is critical and any delay in its performance will delay the completion of whole project
(D) all of the above

💬 Discuss

✅ Correct Answer: (A) it represents a situation where extra resources are available and the completion of project is not delayed

Published by Vinay ⭐ 28.75K Points at 16-Sep-2020 08:32 am in Concrete Technology

Q. An aggregate having all the pores filled with water but having dry surface is called ?

(A) very dry aggregate
(B) dry aggregate
(C) saturated surface dry aggregate
(D) moist aggregate

💬 Discuss

✅ Correct Answer: (C) saturated surface dry aggregate

Published by Ritu Singhal ⭐ 4.43K Points at 07-Sep-2024 03:44 am in Concrete Technology

Concrete Technology MCQs | Page - 52

Q. In transportation of concrete by pumps ?

Q. The presence of lime in cement ?

Q. The workability of concrete is expressed by ?

Q. In order to prepare a test specimen, it is necessary to ?

Q. Which of the following statement is correct ?

Q. Rolled steel T-sections are used ?

Q. The working shear stress on gross area of power-driven field rivets, as per IS: 800-1984, is ?

Q. PERT stands for ?

Q. When float of an activity is negative ?

Q. An aggregate having all the pores filled with water but having dry surface is called ?

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