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This set of Manufacturing Technology 1 Multiple Choice Questions & Answers (MCQs) focuses on Manufacturing Technology I Set 13
Q1 | In electromagnetic forming, highly intense magnetic field is used for the forming process.
- true
- false
Q2 | The magnetic field interacts with metal to generate heat in the metal which causes forming process.
- true
- false
Q3 | Which of the following methods of forming is not the part of electromagnetic forming?
- compression
- expansion
- shearing
- counter forming
Q4 | Electromagnetic forming cannot be used for materials of poor electrical conductivity.
- true
- false
Q5 | The efficiency of electromagnetic forming mainly depends on the resistivity of material being formed.
- true
- false
Q6 | The process of electromagnetic forming does not require any kind of lubrication.
- true
- false
Q7 | The joints made by an electromagnetic forming process are much stronger than the parent material.
- true
- false
Q8 | What is the minimum pressure required in a compression molding process?
- 0.5 mpa
- 1 mpa
- 1.5 mpa
- 2 mpa
Q9 | What is the minimum curing time required in a compression molding process?
- 0.4 minutes
- 0.5 minutes
- 0.6 minutes
- 0.7 minutes
Q10 | What is the maximum pressure required in a transfer molding process?
- 80 mpa
- 90 mpa
- 100 mpa
- 120 mpa
Q11 | Thermosetting materials are the polymeric materials which get soften on heating with or without pressure.
- true
- false
Q12 | Polyurethanes plastics can be made in flexible foams even after belonging to thermosetting polymers.
- true
- false
- topic 5.2 injection moulding - plunger and screw machines
Q13 | Thermosetting plastics like epoxies can be used for filament wound rocket motor casings in missiles by combining with glass fibers.
- true
- false
Q14 | Mechanical properties of any plastics are mainly dependent on the temperature, force and time of load applied.
- true
- false
Q15 | Where does the granular molding material get loaded into?
- barrel
- hopper
- pellets
- split
Q16 | There is a varied pressure provided in the solidification unit of injection molding process.
- true
- false
Q17 | Which of the following is not an application of blow molding process?
- toy bodies
- door liners
- bottles
- pipes
Q18 | The heater in the vacuum forming process is heated up to 90°C.
- true
- false
Q19 | The initial cost in blow molding is low.
- true
- false