MCQOPTIONS
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MCQOPTIONS
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 | |
| 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 | |
| 3. |
After the curing of 28 days, the concrete gains strength upto _____________ |
| A. | 40% |
| B. | 60% |
| C. | 80% |
| D. | 100% |
| Answer» E. | |
| 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 | |
| 5. |
The final operation of finishing the concrete surface is called _____________ |
| A. | Screeding |
| B. | Floating |
| C. | Troweling |
| D. | Compacting |
| Answer» D. Compacting | |
| 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 | |
| 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. | |
| 8. |
The slump would not exceed 50 mm when compacting concrete with vibrators. |
| A. | True |
| B. | False |
| Answer» B. False | |