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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 | |