Explore topic-wise MCQs in Concrete Technology.

This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Concrete Technology knowledge and support exam preparation. Choose a topic below to get started.

1.

For compacting large sections of mass concrete in structures, the type of vibrator used is ________________

A. Internal vibrator
B. External vibrator
C. Screed vibrator
D. Internal and Screed vibrator
Answer» B. External vibrator
Discussion
2.

The construction joints in cement concrete ___________

A. Should be located where bending moment is large
B. Should be located where shear force is large
C. Should not be provided at the corners
D. Should be spaced at a distance of 3 m apart in case of huge structures
Answer» D. Should be spaced at a distance of 3 m apart in case of huge structures
Discussion
3.

After the curing of 28 days, the concrete gains strength upto _____________

A. 40%
B. 60%
C. 80%
D. 100%
Answer» E.
Discussion
4.

The process of hardening the concrete mixes by keeping its surface moist for a certain period is called ____________

A. Curing
B. Floating
C. Troweling
D. Compacting
Answer» B. Floating
Discussion
5.

The final operation of finishing the concrete surface is called _____________

A. Screeding
B. Floating
C. Troweling
D. Compacting
Answer» D. Compacting
Discussion
6.

The levelling operation that removes humps and hollows and give a true, uniform concrete surface is called ____________

A. Screeding
B. Floating
C. Troweling
D. Compacting
Answer» B. Floating
Discussion
7.

When vibrators are used for compaction, the consistency of concrete depends upon the ___________

A. Type of mix
B. Efficiency of vibrator
C. Placing conditions
D. Type of mix, efficiency of vibrator, pacing conditions
Answer» E.
Discussion
8.

The slump would not exceed 50 mm when compacting concrete with vibrators.

A. True
B. False
Answer» B. False
Discussion