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This section includes 27 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. |
Evaluation of cracks _________ be determined after cracking. |
A. | Can |
B. | Can’t |
C. | Sometimes |
D. | Depends on the structure |
Answer» B. Can’t | |
2. |
In Concrete core test the strength is ________ at the top and _________ at the bottom. |
A. | Lowest, lowest |
B. | Lowest, highest |
C. | Highest, lowest |
D. | Highest, highest |
Answer» C. Highest, lowest | |
3. |
A ratio of core height-to-diameter of __________ gives a standard cylinder test. |
A. | 1 |
B. | 2 |
C. | 3 |
D. | 4 |
Answer» C. 3 | |
4. |
It is about __________ times the tensile stress determined by the splitting test. |
A. | Equal |
B. | .5 |
C. | 1.5 |
D. | 2 |
Answer» D. 2 | |
5. |
The fatigue performance of metallic casting is generally determined by endurance limit of the material. |
A. | True |
B. | False |
Answer» B. False | |
6. |
In impact testing of materials, the notches are made to reduce the stress concentration. |
A. | True |
B. | False |
Answer» C. | |
7. |
The dynamic tear test is mainly used for evaluating fracture properties of ultrahigh strength steel castings. |
A. | True |
B. | False |
Answer» B. False | |
8. |
Charpy v-notch test can only estimate the energy absorbed by the fracturing of material. |
A. | True |
B. | False |
Answer» C. | |
9. |
Which of the following tests uses a heavy pendulum for the breaking of a specimen while inspection? |
A. | Pressure test |
B. | Static tear test |
C. | Stress test |
D. | Charpy v-notch test |
Answer» E. | |
10. |
Destructive tests are generally much easier to interpret than the non-destructive tests. |
A. | True |
B. | False |
Answer» B. False | |
11. |
THE_DYNAMIC_TEAR_TEST_IS_MAINLY_USED_FOR_EVALUATING_FRACTURE_PROPERTIES_OF_ULTRAHIGH_STRENGTH_STEEL_CASTINGS.?$ |
A. | True |
B. | False |
Answer» B. False | |
12. |
DURING_RADIOGRAPHY_TEST,_WHICH_REGION_ABSORBS_LESS_RADIATION_AND_TRANSMITS_MORE??$ |
A. | Low and high density regions absorb and transmit same amount of radiation |
B. | High density region |
C. | Low density region |
D. | Low and high density regions adsorb |
Answer» D. Low and high density regions adsorb | |
13. |
The fatigue performance of metallic casting is generally determined by endurance limit of the material.$ |
A. | True |
B. | False |
Answer» B. False | |
14. |
In impact testing of materials, the notches are made to reduce the stress concentration.$ |
A. | True |
B. | False |
Answer» C. | |
15. |
Which of the following parameters is also known as stress intensity factor (K)? |
A. | Creep |
B. | Proof resilience |
C. | Fracture toughness |
D. | Endurance |
Answer» D. Endurance | |
16. |
Charpy v-notch test can only estimate the energy absorbed by the fracturing of material? |
A. | True |
B. | False |
Answer» C. | |
17. |
Which of the following tests uses a heavy pendulum for the breaking of specimen while inspection? |
A. | Pressure test |
B. | Static tear test |
C. | Stress test |
D. | Charpy v-notch test |
Answer» E. | |
18. |
In Concrete core test the strength is __ at the top and ___ at the bottom. |
A. | Lowest, lowest |
B. | Lowest, highest |
C. | Highest, lowest |
D. | Highest, highest |
Answer» C. Highest, lowest | |
19. |
Which of the following tests is not the type of destructive testing of materials? |
A. | Stress test |
B. | Crash test |
C. | Hardness test |
D. | Pressure test |
Answer» E. | |
20. |
A ratio of core height-to-diameter of ___ gives a standard cylinder test. |
A. | 1 |
B. | 2 |
C. | 3 |
D. | 4 |
Answer» C. 3 | |
21. |
Destructive testing method can also be economical for large casting or structure. |
A. | True |
B. | False |
Answer» C. | |
22. |
It is about ___ times the tensile stress determined by the splitting test. |
A. | Equal |
B. | .5 |
C. | 1.5 |
D. | 2 |
Answer» D. 2 | |
23. |
High speed camera used in destructive testing can give very precise information about the failure of casting or material. |
A. | True |
B. | False |
Answer» B. False | |
24. |
Compressive strength of hardened concrete is done by _________ |
A. | Cube test |
B. | Tensile splitting test |
C. | Concrete core test |
D. | Flexure test |
Answer» B. Tensile splitting test | |
25. |
In destructive testing, all the operations are performed manually, thus it does not require any technologies or electronic devices. |
A. | True |
B. | False |
Answer» C. | |
26. |
Destructive testing is not economical for mass production as this method destroys material for the inspection. |
A. | True |
B. | False |
Answer» C. | |
27. |
What is destructive test? |
A. | Destructive tests are applications for detecting flaws in materials without impairing their usefulness |
B. | Destructive tests are applications for detecting flaws that impair the use of the materials such as pressure testing |
C. | Destructive tests are applications for detecting flaws in materials with impairing their usefulness |
D. | Destructive tests are applications for detecting flaws that do not impair the use of the materials such as pressure testing |
Answer» C. Destructive tests are applications for detecting flaws in materials with impairing their usefulness | |