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This set of Manufacturing Technology 1 Multiple Choice Questions & Answers (MCQs) focuses on Manufacturing Technology I Set 6
Q1 | Which of the following process does not have high deposition rate?
- shielded metal arc welding
- electro slag welding
- gas-shielded metal arc welding
- flux core arc welding
Q2 | Which of the following can be easily be welded from flash butt welding process?
- tin
- lead
- cast irons
- carbon steel
Q3 | Electrodes used in spot welding are made up of which material?
- only copper
- copper and tungsten
- copper and chromium
- copper and aluminium
Q4 | Which of the following method is not used in applying pressure in spot welding process?
- hand lever
- foot lever
- air pressure
- hydraulic cylinder
Q5 | What is the maximum power supply needed for the working of spot welding process?
- 135 kva
- 140 kva
- 145 kva
- 150 kva
Q6 | What is the minimum power supply needed for the working of spot welding process?
- 10 kva
- 14 kva
- 6 kva
- 22 kva
Q7 | Upset butt welding is majorly used in the making of automobile parts.
- true
- false
Q8 | In friction welding process, materials are joined by motion between materials.
- rectilinear
- rubbing
- translatory
- brownian
Q9 | All metallic engineering materials which are can be friction welded.
- soft
- weldable
- forgeable
- metamaterials
Q10 | Friction welding is process.
- costly
- cost saving
- time consuming
- highly material selective
Q11 | Friction welding produces quality joints, with a 100% weld.
- lap joint
- tee-joint
- butt joint
- edge joint
Q12 | Which of the following is not true about friction welding?
- dissimilar metals cannot be joined
- this technique is relatively faster as compared to the other techniques
- this technique is suitable for any parts of shape or size
- sheared surfaces can also be joined by the process
Q13 | Which of the following holds true for friction welding?
- hazardous fumes are generated during the process
- argon is used as a shielding gas
- it is a power consuming process
- there are no solidification defects in the welded parts
Q14 | In inertia friction welding energy of welding machine is used.
- electrical
- potential
- rotational
- frictional
Q15 | In inertia friction welding, one workpiece is connected to
- flywheel
- the pin tool
- rotor
- generator
Q16 | Weld strength in inertia friction welding is more than direct drive friction welding.
- true
- false
Q17 | In direct drive friction welding, lower weld forces are generated.
- true
- false
Q18 | Which of the following defects occur due to flux employed and electrode coating?
- inclusion of slag
- inadequate penetration
- incomplete fusion
- porosity
Q19 | Which of the following defects occur when the deposited metal is not focused on the root of weld?
- inclusion of slag
- inadequate penetration
- incomplete fusion
- porosity
Q20 | Which of the following defects occur when weld metal layer fails to fuse together?
- inclusion of slag
- inadequate penetration
- incomplete fusion
- porosity
Q21 | Which of the following defects occur due to the entrapment of gas bubbles by the freezing dendrites during the cooling of molten pad?
- inclusion of slag
- inadequate penetration
- incomplete fusion
- porosity
Q22 | Which of the following defects occur due to filler material having a different rate of contraction compared to parent metal?
- undercut
- spatter
- cracking in weld metal
- cold cracking
Q23 | Which of the following defects occur due to melting or burning away of base metal?
- undercut
- spatter
- cracking in weld metal
- cold cracking
Q24 | Which of the following defects occur due to scattering of metal around the vicinity of weld?
- undercut
- spatter
- cracking in weld metal
- cold cracking
Q25 | Which of the following defects occur due to incorrect welding techniques?
- undercut
- hot cracking
- cracking in weld metal
- cold cracking