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This section includes 15 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. |
In the wet process of cement manufacturing raw material is heated to about _____________ |
A. | 650-900 °C |
B. | 900-1300 °C |
C. | 1300-1450 °C |
D. | 900-1050 °C |
Answer» D. 900-1050 °C | |
2. |
In the wet process, the kiln is ___________ |
A. | Horizontal |
B. | Vertical |
C. | Slightly inclined with vertical |
D. | Slightly inclined with horizontal |
Answer» D. Slightly inclined with horizontal | |
3. |
When chalk is used _______ |
A. | It is finely broken up and dispersed in water in a wash mill |
B. | It has to be blasted, then crushed, usually in two progressively smaller crushers |
C. | It is sieved and fed into a rotating dish called a granulator |
D. | The raw materials are crushed and fed into a grinding mill, where they are dried and reduced into fine powder |
Answer» B. It has to be blasted, then crushed, usually in two progressively smaller crushers | |
4. |
The machinery and equipments do not need much maintenance. |
A. | True |
B. | False |
Answer» B. False | |
5. |
The slurry, in its movement down the kiln, encounters a progressively higher temperature. At first, the water is driven off and ___ is liberated. |
A. | SiO2 |
B. | CO2 |
C. | Gypsum |
D. | CaO |
Answer» C. Gypsum | |
6. |
Size of the kiln needed to manufacture the cement is bigger for wet process. |
A. | True |
B. | False |
Answer» B. False | |
7. |
IN_THE_WET_PROCESS,_THE_KILN_IS____________?$ |
A. | Horizontal |
B. | Vertical |
C. | Slightly inclined with vertical |
D. | Slightly inclined with horizontal |
Answer» D. Slightly inclined with horizontal | |
8. |
In_the_wet_process_of_cement_manufacturing_raw_material_is_heated_to_about______________$ |
A. | 650-900 °C |
B. | 900-1300 °C |
C. | 1300-1450 °C |
D. | 900-1050 °C |
Answer» D. 900-1050 ¬¨¬®‚Äö√†√ªC | |
9. |
“When chalk is used, _______” Choose the most suitable option?# |
A. | It is finely broken up and dispersed in water in a wash mill |
B. | It has to be blasted, then crushed, usually in two progressively smaller crushers |
C. | It is sieved and fed into a rotating dish called a granulator |
D. | The raw materials are crushed and fed into a grinding mill, where they are dried and reduced into fine powder |
Answer» B. It has to be blasted, then crushed, usually in two progressively smaller crushers | |
10. |
“The machinery and equipments do not need much maintenance”. Is the statement true or false?$ |
A. | True |
B. | False |
Answer» B. False | |
11. |
The slurry with the desired lime content passes into the _____ |
A. | Clinker |
B. | Rotary kiln |
C. | Slurry tank |
D. | Cement silo |
Answer» C. Slurry tank | |
12. |
Among the below statement, which one is correct for wet process? |
A. | The amount of heat required is high, so the required fuel amount is high |
B. | The amount of heat required is lesser, 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» B. The amount of heat required is lesser, so the required fuel amount is less | |
13. |
“Size of the kiln needed to manufacture the cement is bigger for wet process”. Is the statement true or false?$ |
A. | True |
B. | False |
Answer» B. False | |
14. |
What is the moisture content in slurry for wet process? |
A. | 35-50% |
B. | 12% |
C. | 40-45% |
D. | 100% |
Answer» B. 12% | |
15. |
What is wet process? |
A. | Grinding and mixing of the raw materials in their dry state |
B. | Grinding and mixing of the raw materials in their medium state |
C. | Grinding and mixing of the raw materials in their wet state |
D. | Grinding and mixing of the raw materials in their overheated state |
Answer» D. Grinding and mixing of the raw materials in their overheated state | |