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This section includes 10 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 electric arc wire spray process, preheating of metal before welding is mainly done to prevent surface cracking. |
A. | True |
B. | False |
Answer» B. False | |
2. |
By using electric arc wire spray process, salvaging of white cast iron becomes very easy. |
A. | True |
B. | False |
Answer» C. | |
3. |
Without knowing the conditions or details about the castings, salvaging can even destroy or damage the whole casting. |
A. | True |
B. | False |
Answer» B. False | |
4. |
In salvaging of castings, the metallic powder coating can improve the heat transfer by_____ |
A. | 5-10% |
B. | 10-30% |
C. | 30-50% |
D. | 100% |
Answer» D. 100% | |
5. |
In electric arc wire spray process, the atomizing air pressure is the only significant variable for controlling the surface layers. |
A. | True |
B. | False |
Answer» B. False | |
6. |
In salvaging process, the metallic particles used for enhancing heat transfer may stick to the surface areas of casting by melting itself. |
A. | True |
B. | False |
Answer» C. | |
7. |
Which of the following types of inspection is mostly used for the identification of cast bumps on the castings? |
A. | Radiography |
B. | Eddy current method |
C. | Visual inspection |
D. | Dimensional inspection |
Answer» D. Dimensional inspection | |
8. |
A metallic powder is basically used as a coating for the heat transfer enhancement. |
A. | True |
B. | False |
Answer» B. False | |
9. |
In salvaging of castings, cooling fluid used can be directly exposed to the hot castings to enhance heat transfer. |
A. | True |
B. | False |
Answer» C. | |
10. |
Which of the following parts of castings are mostly salvaged with defective cast cooling bumps? |
A. | Piston |
B. | Cylinder |
C. | Connecting rods |
D. | Gas turbine parts |
Answer» E. | |