Fitter – Semester 2, Module 1

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Fitter – Semester 2, Module 1 - Drilling

Common for All Fitter Trade 1st Year part -2

NAME *

NAME OF THE ITI *

MOBILE NUMBER *

41 : What is the name of part marked X? *

2 points

A : Arbor

B : Drill chuck

C : Drill bit

D : Chuck key

42 : Which reamer has a long taper lead? *

2 points

A : Socket reamer

B : Hand reamer

C : Machine reamer

D : Helical fluted reamer

43 : What is the type of defect on drilled hole? *

2 points

A : Rough holes

B : Over heated drill

C : Oversized holes

D : Unequal flow of chips

44 : What is the defect if pores of the grinding wheel get clogged? *

2 points

A : Drilling

B : Glazing

C : Loading

D : Dressing

45 : Which cast iron has the ability to reduce vibration and tool chattering in machine tools? *

2 points

A : Grey cast iron

B : White cast iron

C : Nodular cast iron

D : Malleable cast iron

46 : Which furnace is used to produce wrought iron? | *

2 points

A : Blast furnace

B : Cupola furnace

C : Puddling furnace

D : Electric arc furnace

47 : Which ore is used to extract zinc? *

2 points

A : Bauxite

B : Galena

C : Calamine

D : Cassiterite

48 : Which tool is used to check the internal clearance of the bearing? *

2 points

A : Steel rule

B : Feeler gauge

C : Depth gauge

D : Vernier calipe

49 : What is the name of part marked as X? *

2 points

A : Collar

B : Square head

C : Fingers

D : Body

50 : What is the angle of ACME thread ? *

2 points

A : 66°

B : 55°

C : 29°

D : 45°

51 : What is the advantage of centre screw indie stock? *

2 points

A : To tighten the die

B : To adjust the depth of cut

C : To adjust the dia of internal thread

D : To adjust the dia of external thread

52 : What is the name of elements of screw marked as X? *

2 points

A : Root

B : Pitch

C : Crest

D : Thread angle

53 : Which term describes the axial movement of screw in one complete turn? *

2 points

A : Lead

B : Flank

C : Pitch

D : Depth

54 : How the size of drill bit is measured? | *

2 points

A : Between flutes

B : Between the lands

C : Between web

D : Neck diamete

55 : What is the helix angle of general purpose drill? *

2 points

A : 59°

B : 118°

C : 27.5°

D : 8° to 12

56 : What is the name of the tool? *

2 points

A : Pilot drill

B : Counter sink

C : Drill with pilot

D : Countersink with pilot

57 : Which part of a reamer is designed for the removal of chips? *

2 points

A : Face

B : Flute

C : Heel

D : Cutting edge

58 : What is the purpose of type S twist drill? *

2 points

A : Used for hard material

B : Used for high carbon steel

C : Used for soft and tough material

D : Used for normal low carbon stee

59 : What is the reason for rough holes in drilling? *

2 points

A : Unequal point thinning

B : Drill point not in centre

C : Clearance angle is incorrect

D : Drill cutting edges are not sharp

60 : Determine the drill size for finishing ø 19 mm reaming hole (as per table under size 0.2 &over size 0.05 mm)? *

2 points

A : 18.75 mm

B : 19.00 mm

C : 19.25 mm

D : 19.05 mm

61 : What is the name of operation? *

2 points

A : Drilling

B : Spot facing

C : Counter sinking

D : Counter boring

62 : What is the reason if the drilled hole is larger than the drill size *

2 points

A : Drill is not sharp

B : Feed rate is too high

C : Cutting speed is too high

D : Unequal angle of cutting edge

63 : What is the term, the top surface joining the two sides of a thread? *

2 points

A : Root

B : Crest

C : Flank

D : Pitch

64 : What V denotes in grinding wheel specification 32A46H8V? *

2 points

A : Bond

B : Grade

C : Abrasive

D : Grain size

65 : What type of abrasive wheel is used for grinding die steel? *

2 points

A : Silicon carbide

B : Green silicon carbide

C : White aluminium oxide

D : Brown aluminium oxide

66 : Which term indicates the amount of bond present between the individual abrasive grains? *

2 points

A : Grain

B : Grade

C : Abrasive

D : Structure

67 : What is the name of the part marked as X invernier micrometer? *

2 points

A : Barrel

B : Thimble

C : Datum line

D : Vernier division

68 : What is the name of the part marked as X of telescopic gauge? *

2 points

A : Spring

B : Handle

C : Fixed leg

D : Telescoping leg

69 : What is the name of the tool? *

2 points

A : Reamer

B : Spot facing tool

C : Countersink tool

D : Counter boring tool

70 : What is the name of the angle marked as Xin drill bit? *

2 points

A : Helix angle

B : Lead angle

C : Point angle

D : Chisel edge angle

71 : What is the name of element marked X in reamer? *

1 point

A : Face

B : Heel

C : Flute

D : Cutting edge

72 : Which angle determines the rake angle of drills? *

2 points

A : Helix angle

B : Core angle

C : Point angle

D : Chisel edge angle

73 : What is the drill size for ø15 mm reaming hole? *

2 points

A : 14.75 mm

B : 14.50 mm

C : 15.25 mm

D : 14.65 mm

74 : Why drilled holes are over sized in drilling operation? *

2 points

A : Drill is not sharp

B : Unequal lip length

C : Feed rate is too high

D : Cooling is insufficient

75 : What is the name of the operation producing flat seat on drilled hole? *

2 points

A : Drilling

B : Spot facing

C : Countersinking

D : Counterboring

76 : What is the purpose of flute in drill? *

1 point

A : To drive out the chips

B : To reduce the weight

C : To reduce the cost

D : To increase the speed

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