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This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Casting knowledge and support exam preparation. Choose a topic below to get started.
1. |
The heater in the vacuum forming process is heated up to 90°C. |
A. | True |
B. | False |
Answer» B. False | |
2. |
THE_HEATER_IN_VACUUM_FORMING_PROCESS_IS_HEATED_UP_TO_90¬¨ àûC.?$# |
A. | True |
B. | False |
Answer» B. False | |
3. |
The_initial_cost_in_blow_molding_is_low.$ |
A. | True |
B. | False |
Answer» B. False | |
4. |
What is the maximum thickness that can be allowed for a plastics sheet in vacuum forming process? |
A. | 3 mm |
B. | 3.1 mm |
C. | 3.2 mm |
D. | 3.3 mm |
Answer» D. 3.3 mm | |
5. |
Which of the following is not an application of blow molding process? |
A. | Toy bodies |
B. | Door liners |
C. | Bottles |
D. | Pipes |
Answer» C. Bottles | |
6. |
What is the minimum thickness required by the plastic for vacuum forming? |
A. | 0.125 mm |
B. | 0.25 mm |
C. | 0.375 mm |
D. | 0.5 mm |
Answer» B. 0.25 mm | |
7. |
Which of the following is not a type of blow molding process? |
A. | Injection blow molding |
B. | Extrusion blow molding |
C. | Multi-smaller blow molding |
D. | Multi-larger blow molding |
Answer» D. Multi-larger blow molding | |
8. |
What can be the maximum pressure to be given to a plastic for blow molding process? |
A. | 700 kPa |
B. | 750 kPa |
C. | 800 kPa |
D. | 850 kPa |
Answer» D. 850 kPa | |
9. |
What is the minimum air pressure required in blow molding process? |
A. | 350 kPa |
B. | 400 kPa |
C. | 450 kPa |
D. | 500 kPa |
Answer» C. 450 kPa | |
10. |
Which of the following plastics is not used in blow molding? |
A. | Terephthalate |
B. | Polypropylene |
C. | Polythene |
D. | PVC |
Answer» B. Polypropylene | |
11. |
In blow molding, to inflate soft plastic, which medium is used? |
A. | Air |
B. | Water |
C. | Oil |
D. | Alcohol |
Answer» B. Water | |