MCQOPTIONS
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MCQOPTIONS
This section includes 12 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. |
Chemically inactive pore fillers ____________ the workability. |
| A. | Decrease |
| B. | Increase |
| C. | Don’t affect |
| D. | Improve |
| Answer» E. | |
| 2. |
Chemically active pore fillers ____________ the setting of concrete. |
| A. | Retards |
| B. | Decrease |
| C. | Accelerates |
| D. | No change |
| Answer» D. No change | |
| 3. |
CHEMICALLY_INACTIVE_PORE_FILLERS______________THE_WORKABILITY.?$ |
| A. | Decrease |
| B. | Increase |
| C. | Don’t affect |
| D. | Improve |
| Answer» E. | |
| 4. |
“Water_repelling_materials_like_soda,_potash_soaps,_etc_make_the_concrete_pervious”._Is_this_statement_true_or_false?$# |
| A. | True |
| B. | False |
| Answer» C. | |
| 5. |
Chemically active pore fillers ____________ the setting of concrete? |
| A. | Retards |
| B. | Decrease |
| C. | Accelerates |
| D. | No change |
| Answer» D. No change | |
| 6. |
Damp proofing ____________ resist water well enough. |
| A. | Does |
| B. | Does not |
| C. | Doesn’t effect |
| D. | Depends on the temperature |
| Answer» C. Doesn‚Äö√Ñ√∂‚àö√ë‚àö¬•t effect | |
| 7. |
Which one is not chemical admixtures? |
| A. | Accelerators |
| B. | Retarders |
| C. | Water-reducing agents |
| D. | Silica fume |
| Answer» E. | |
| 8. |
Dry intervals in surface wetting leads to ___________ |
| A. | Cracking |
| B. | Fogging |
| C. | High strength |
| D. | Good workability |
| Answer» B. Fogging | |
| 9. |
After finishing concrete surface must be kept ___________ |
| A. | Dry |
| B. | First dry it and then wet it |
| C. | First wet it and then dry it |
| D. | Wet |
| Answer» E. | |
| 10. |
Concrete placed in cold weather will take ____________ time to gain strength. |
| A. | No |
| B. | Less |
| C. | More |
| D. | Equal to hot weather |
| Answer» D. Equal to hot weather | |
| 11. |
In a dry environment, concrete strength will be loosed as much as ___________ % in moist environment. |
| A. | 30 |
| B. | 40 |
| C. | 50 |
| D. | 60 |
| Answer» D. 60 | |
| 12. |
Air entrainment in concrete increases ____________ |
| A. | Strength |
| B. | Workability |
| C. | The effect of temp variations |
| D. | The unit weight |
| Answer» C. The effect of temp variations | |