Manufacturing Technology I Set 6

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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