MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Aerospace Materials Processes knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The higher the impact value of the material __________ its toughness value. |
| A. | lower |
| B. | double |
| C. | half |
| D. | higher |
| Answer» E. | |
| 2. |
If in an old test, energy absorbed (obtained on the scale) is 34 J and cross-section area of the notch is 10×8 mm square. What is the impact strength of the material? |
| A. | 34 J per mm square |
| B. | 4.25 J per mm square |
| C. | 0.425 J per mm square |
| D. | 80 J per mm square |
| E. | is 34 J and cross-section area of the notch is 10×8 mm square. What is the impact strength of the material?a) 34 J per mm squareb) 4.25 J per mm squarec) 0.425 J per mm squared) 80 J per mm square |
| Answer» D. 80 J per mm square | |
| 3. |
The impact test value of a material changes with material. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 4. |
What is the angle ‘A’ (notch) in the following figure of the Izod test specimen? |
| A. | 60° |
| B. | 30° |
| C. | 45° |
| D. | 90° |
| Answer» D. 90° | |
| 5. |
In an Izod test after the pendulum is released from a certain height, it hits the material at the __________ point of it’s path. |
| A. | lowest |
| B. | opposite |
| C. | highest |
| D. | sideways |
| Answer» B. opposite | |
| 6. |
On _________ materials, impact test cannot be conducted. |
| A. | steel |
| B. | solid |
| C. | room temperature |
| D. | extremely ductile |
| Answer» E. | |
| 7. |
The impact test of a material determines the shock resistance. |
| A. | True |
| B. | False |
| Answer» C. | |
| 8. |
What is the principal use of the impact tests? |
| A. | To determine ductility |
| B. | To determine if the material has been subjected to heat treatment |
| C. | To prevent material from corroding |
| D. | To obtain absolute values |
| Answer» C. To prevent material from corroding | |
| 9. |
The impact tests can be used to _____________ |
| A. | find out the absolute value of a material |
| B. | to determine the tensile strength of a material |
| C. | compare two specimens of similar composition and tensile strength |
| D. | to find the quantity of material |
| Answer» D. to find the quantity of material | |
| 10. |
What is an impact test? |
| A. | Fixing a specimen in the machine to be broken by weight or heavy pendulum |
| B. | Indenting with the help of a diamond hammer |
| C. | Rolling with steel |
| D. | Dipping in a mixture of ethanol and carbon and checking indentation of a material |
| Answer» B. Indenting with the help of a diamond hammer | |