About Workshop Technology

Following are some of the multiple choice questions on the Workshop Technology with answers that will help the students in developing their knowledge.

Workshop Technology MCQ

1. The teeth of hacksaw blade are bent

  • Towards right
  • Towards left
  • Alternately towards right and left and every third or fourth left straight
  • May be bent in any direction

2. A hacksaw blade cuts on the

  • Forward stroke
  • Return stroke
  • Both forward and return strokes
  • Cutting depends upon the direction of force

3. A file removes the metal during

  • Forward stroke
  • Return stroke
  • Both forward and return strokes
  • None of these

4. The cold chisels are made by

  • drawing
  • rolling
  • piercing
  • forging

5. A hacksaw blade is specified by its

  • Length
  • Material
  • Width
  • Number of teeth

6. The cutting edge of a chisel should be

  • Hardened
  • Tempered
  • Hardened and tempered
  • Case hardened

7. Metal patterns are used for

  • small castings
  • large castings
  • complicated castings
  • large scale production of castings

8. Cores are used to

  • Form internal cavities in the casting
  • Improve mould surface
  • Form a part of a green sand mould
  • All of these

9. The acetylene cylinder is usually painted with

  • Black colour
  • White colour
  • Maroon colour
  • Yellow colour

10. The temperature at which the new grains are formed in the metal is called

  • lower critical temperature
  • upper critical temperature
  • eutectic temperature
  • recrystallisation temperature

11. The chisel used for cutting key ways is

  • flat chisel
  • cape chisel
  • round nose chisel
  • diamond pointed chisel

12. In a hot chamber die casting machine

  • ferrous alloys with low melting temperature are casted
  • ferrous alloys with high melting temperature are casted
  • non-ferrous alloys with low melting temperature are casted
  • non-ferrous alloys with high melting temperature are casted

13. A moving mandrel is used in

  • Wire drawing
  • Tube drawing
  • Metal cutting
  • Forging

14. The electrodes used in spot welding have a tip of

  • stainless steel
  • aluminium
  • copper
  • brass

15. In a centrifugal casting method

  • Core is made of sand
  • Core is made of ferrous metal
  • Core is made of nonferrous metal
  • No core is used

16. A rip saw

  • Is a two man saw
  • Is used for cutting along the grains of wood
  • Has a narrow blade with two wooden handles
  • All of the above

17. Scribing block is used to

  • Hold the round bars during marking
  • Check the trueness of flat surfaces
  • Locate the centres of round bars
  • Check the surface roughness

18. In shielded arc welding

  • large electrode is used
  • welding rod coated with slag is used
  • welding rod coated with fluxing material is used
  • none of the above

19. The consumable electrode is used in

  • Carbon arc welding
  • Submerged arc welding
  • TIG arc welding
  • MIG arc welding

20. The oxygen cylinder is usually painted with

  • Black colour
  • White colour
  • Maroon colour
  • Yellow colour

21. A casting defect which occurs due to improper venting of sand is known as

  • Cold shuts
  • Blow holes
  • Shift
  • Swell

22. The purpose of a riser is to

  • Deliver molten metal into the mould cavity
  • Act as a reservoir for the molten metal
  • Feed the molten metal to the casting in order to compensate for the shrinkage
  • Deliver the molten metal from pouring basin to gate

23. Thread rolling is restricted to

  • Ferrous materials
  • Ductile materials
  • Hard materials
  • None of these

24. The property of sand due to which it evolves a great amount of steam and other gases is called

  • collapsibility
  • permeability
  • cohesiveness
  • adhesiveness

25. A zinc diffusion process is called

  • galvanising
  • anodising
  • parkerising
  • sherardizing

26. Thermit welding is often used in

  • Replacing broken gear teeth
  • Repairing broken shears
  • Joining rails, truck frames and locomotive frames etc.
  • All of the above

27. The machining allowance provided on patterns depends upon

  • type of casting metal
  • size and shape of casting
  • method of casting used
  • all of these

28. Which of the following methods can be used for manufacturing 2 metre long seamless metallic tubes?

  • Drawing
  • Extrusion
  • Rolling
  • Extrusion and rolling

29. The draft or taper allowance on casting is generally

  • 1 to 2 mm/m
  • 2 to 5 mm/m
  • 5 to 10 mm/m
  • 10 to 15 mm/m

30. The electron beam welding can be carried out in

  • Open air
  • A shielded gas environment
  • Vacuum
  • A pressurized inert gas chamber

31. Which of the following welding method uses a pool of molten metal?

  • Carbon arc welding
  • Submerged arc welding
  • TIG arc welding
  • MIG arc welding

32. The blank diameter used in thread rolling will be

  • equal to minor diameter of the thread
  • equal to pitch diameter of the thread
  • a little larger than the minor diameter of the thread
  • a little larger than the pitch diameter of the thread

33. The operation of cutting a cylindrical hole in a sheet of metal by the punch and die is called

  • Shearing
  • Piercing
  • Punching
  • Blanking

34. Spot welding is used for welding

  • Lap joints in plates having 0.025 mm to 1.25 mm thickness
  • Lap joints in plates having thickness above 3 mm
  • Butt joints in plates having 0.025 mm to 1.25 mm thickness
  • Butt joints in plates having thickness above 3 mm

35. A ring gauge is used to

  • Check the diameter of shafts or studs
  • Test the accuracy of holes
  • Check the clearance between two mating surfaces
  • All of the above

36. Blanking and piercing operations can be performed simultaneously in a

  • simple die
  • progressive die
  • compound die
  • combination die

37. A saw which cuts wood during the return stroke of the saw is known as

  • push saw
  • pull saw or draw saw

38. Which of the following material can be used for making patterns?

  • Aluminium
  • Wax
  • Lead
  • All of these

39. In forehand welding, the angle between the welding torch and the work is ________ as compared to backhand welding.

  • Same
  • Less
  • More
  • None of these

40. Galvanising is a

  • zinc diffusion process
  • process of coating zinc by hot dipping
  • process used for making thin phosphate coating on steel
  • none of the above

41. The recrystallisation temperature of steel is

  • 400°C
  • 600°C
  • 800°C
  • None of these

42. Lancing is the operation of

  • Cutting a sheet of metal in a straight line along the length
  • Removal of metal to the desired shape from the edge of a plate
  • Cutting a sheet of metal through part of its length and then bending the cut portion
  • Bending a sheet of metal along a curved axis

43. A jolt machine is used to

  • Ram the sand harder at the pattern face with decreasing hardness towards the back of the mould
  • Ram the sand harder at the back of the mould and softer on the pattern face
  • Produce uniform sand hardness throughout the mould
  • Produce uniform packing of sand in the mould

44. The type of file used for a wood work is

  • single-cut file
  • double cut file
  • rasp-cut file
  • any one of these

45. In sheet metal work, he cutting force on the tool can be reduced by

  • Grinding the cutting edges sharp
  • Increasing the hardness of tool
  • Providing shear on tool
  • Increasing the hardness of die

46. The edge of a steel plate cut by oxygen cutting will get hardened when the carbon content is

  • Less than 0.1 percent
  • Less than 0.3 percent
  • More than 0.3 percent
  • Anywhere between 0.1 to 1 percent

47. The tolerance produced by shell moulding process of casting is

  • +0.05 mm
  • ±0.2 mm
  • +0.5 mm
  • ±1 mm

48. The diaphragm moulding machine is used to

  • Ram the sand harder at the pattern face with decreasing hardness towards the back of the mould
  • Ram the sand harder at the back of the mould and softer on the pattern face
  • Produce uniform packing of sand in the mould
  • Give uniform sand hardness throughout the mould

49. A pattern maker's shrinkage rule considers

  • all pattern allowances
  • only shrinkage allowance
  • all materials to be cast
  • all materials of the pattern

50. The algebraic difference between the minimum limit and the basic size is called

  • actual deviation
  • upper deviation
  • lower deviation
  • fundamental deviation

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