MCQOPTIONS
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MCQOPTIONS
This section includes 7 Mcqs, each offering curated multiple-choice questions to sharpen your Casting knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
In ultrasonic inspection, there is no chance of rejection of good material. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
Monitoring of porosity defects in casting by ultrasonic inspection is very difficult. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
In ultrasonic inspection, some standards are taken as a reference to measure the size of discontinuity in the material. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 4. |
Which of the following formulas is used for the calculation of ultrasonic attenuation coefficient ( )? |
| A. | = 10 log(A<sub>0</sub>/A)/X |
| B. | = 20 log(A<sub>0</sub>/A)*X |
| C. | = 10 log(A<sub>0</sub>/A)*X |
| D. | = 20 log(A<sub>0</sub>/A)/X |
| Answer» E. | |
| 5. |
Ultrasound attenuation has no affects on the detection of discontinuities or defects in the castings. |
| A. | True |
| B. | False |
| Answer» C. | |
| 6. |
Coarse grained structures of casting material lead to increase attenuation in ultrasonic inspection. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 7. |
In MPI method, the magnetic discontinuities lie in a direction parallel to the direction of the magnetic field. |
| A. | True |
| B. | False |
| Answer» C. | |