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This section includes 14 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. |
Referring to the graph below, what is the approximate value of strength of 50mm cube in MPa for gel-space ratio .8? |
A. | 20 |
B. | 40 |
C. | 60 |
D. | 80 |
Answer» E. | |
2. |
According to figure, what is the approximate value of strength of 50mm cube in MPa for gel-space ratio .6? |
A. | 20 |
B. | 40 |
C. | 60 |
D. | 80 |
Answer» C. 60 | |
3. |
Gel/Space ratio = x = Volume of gel / Space available = 0.657 C / 0.319 C+ Wo. Here Wo stands for? |
A. | Weight of cement in kg |
B. | Weight of cement in g |
C. | Volume of gel |
D. | Volume of mixing water in ml |
Answer» E. | |
4. |
What does x3 in power’s experiment stands for? |
A. | Gel space ratio |
B. | Water cement ratio |
C. | Intrinsic strength of gel |
D. | Extrinsic strength of gel |
Answer» B. Water cement ratio | |
5. |
What does 240 in power’s experiment stand for? |
A. | Gel space ratio |
B. | Water cement ratio |
C. | Intrinsic strength of gel |
D. | Extrinsic strength of gel |
Answer» D. Extrinsic strength of gel | |
6. |
Power showed that the strength of concrete bears a specific relationship with the gel/space ratio. He found the relationship to be __________ |
A. | 240x3 |
B. | 140x3 |
C. | 240x2 |
D. | 140x2 |
Answer» B. 140x3 | |
7. |
ACCORDING_TO_FIG._WHAT_IS_THE_APPROX._VALUE_OF_STRENGTH_OF_50MM_CUBE_IN_MPA_FOR_GEL-SPACE_RATIO_.6??$ |
A. | 20 |
B. | 40 |
C. | 60 |
D. | 80 |
Answer» C. 60 | |
8. |
Gel/Space ratio = x = Volume of gel / Space available = 0.657 C / 0.319 C+ Wo. Here C stands for? |
A. | Weight of cement in kg |
B. | Weight of cement in g |
C. | Volume of gel |
D. | Volume of mixing water in ml |
Answer» C. Volume of gel | |
9. |
What unit is present with the 240? |
A. | Pa |
B. | MPa |
C. | GPa |
D. | KPa |
Answer» C. GPa | |
10. |
What does x3 in power’s experiment stands for?$ |
A. | Gel space ratio |
B. | Water cement ratio |
C. | Intrinsic strength of gel |
D. | Extrinsic strength of gel |
Answer» B. Water cement ratio | |
11. |
What does 240 in power’s experiment stands for?$ |
A. | Gel space ratio |
B. | Water cement ratio |
C. | Intrinsic strength of gel |
D. | Extrinsic strength of gel |
Answer» D. Extrinsic strength of gel | |
12. |
Power showed that the strength of concrete bears a specific relationship with the gel/space ratio. He found the relationship to be __________ |
A. | 240x<sup>3</sup> |
B. | 140x<sup>3</sup> |
C. | 240x<sup>2</sup> |
D. | 140x<sup>2</sup> |
Answer» B. 140x<sup>3</sup> | |
13. |
Who has established the relation between the strength and gel/space ratio? |
A. | Abrams |
B. | Power |
C. | Brownyard |
D. | Power and Brownyard |
Answer» E. | |
14. |
What is the gel/space ratio? |
A. | Volume of water to the volume of cement |
B. | Volume of the hydrated cement paste to the sum of volumes of the hydrated cement |
C. | Volume of the hydrated cement paste to the sum of volumes of the hydrated cement and of the capillary pores |
D. | Volume of gel to the volume of space present in concrete |
Answer» D. Volume of gel to the volume of space present in concrete | |