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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. |
What is the percentage of cement produced in dry process? |
A. | 85% |
B. | 70% |
C. | 75% |
D. | 80% |
Answer» D. 80% | |
2. |
The machinery and equipment do not need much maintenance. |
A. | True |
B. | False |
Answer» C. | |
3. |
The raw materials is so hard (solid) that they _________ disintegrate by water. |
A. | do |
B. | may be |
C. | do not |
D. | that they _________ disintegrate by water.a) dob) may bec) do notd) may or may not |
Answer» D. that they _________ disintegrate by water.a) dob) may bec) do notd) may or may not | |
4. |
PICK_UP_THE_CORRECT_STATEMENT_FROM_THE_FOLLOWING:?$ |
A. | Gypsum in cement decreases the setting time |
B. | The first compound of cement which reacts with water, is C2S |
C. | Bulking of sand is less when its particles are fine |
D. | Dry process is less economically |
Answer» B. The first compound of cement which reacts with water, is C2S | |
5. |
What_is_the_percentage_of_cement_produced_in_dry_process?$ |
A. | 85% |
B. | 70% |
C. | 75% |
D. | 80% |
Answer» D. 80% | |
6. |
What is the diameter of hard pellets? |
A. | 10mm |
B. | 12mm |
C. | 15mm |
D. | 18mm |
Answer» D. 18mm | |
7. |
Among the below statement, which one is correct for dry process? |
A. | The amount of heat required is high, so the required fuel amount is high |
B. | The amount of heat required is less, so the required fuel amount is less |
C. | The amount of heat required is high, so the required fuel amount is less |
D. | The amount of heat required is less, so the required fuel amount is high |
Answer» C. The amount of heat required is high, so the required fuel amount is less | |
8. |
What is the moisture content in slurry for dry process? |
A. | 35-50% |
B. | 12% |
C. | 40-45% |
D. | 100% |
Answer» C. 40-45% | |
9. |
The blended meal is sieved and fed into a rotating dish called a ___ |
A. | Clinker |
B. | Kiln |
C. | Granulator |
D. | Raw meal |
Answer» D. Raw meal | |
10. |
To obtain cement dry powder, lime stones and shales or their slurry, is burnt in a rotary kiln at a temperature between ___ |
A. | 1100° and 1200°C |
B. | 1200° and 1300°C |
C. | 1300° and 1400°C |
D. | 1400° and 1500°C |
Answer» E. | |
11. |
The raw materials is so hard (solid) that they ___ disintegrate by water. |
A. | do |
B. | may be |
C. | do not |
D. | may or may not |
Answer» D. may or may not | |
12. |
What is dry process? |
A. | Grinding and mixing of the raw materials in their dry state |
B. | Grinding and mixing of the raw materials in their wet state |
C. | Grinding and mixing of the raw materials in their medium state |
D. | Grinding and mixing of the raw materials in their super dry state |
Answer» B. Grinding and mixing of the raw materials in their wet state | |