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009/2016 [वि
57. The size of a planer is determined by the maximum length of the
A) Housing B) Work piece C) Stroke D) Bed

58. An angular surface is machined on a planer
A) By fixing the job at an angle
B) By swivelling the tool head of the planer
C) By swivelling the tool head and fixing the tool at an angle
D) By tilting the table of the planer

59. Gang milling operation is usually performed when
A) Single piece to be milled B) Repair work is to be done
C) For mass production D) None of these

60. In a spur gear the pitch diameter 40 mm, outside diameter 48 mm, module
4 mm, the number of teeth will be

2) 1018ല്‍ 8) 20teeth C) 30teeth D) 40teeth

61. Slitting saw is used for
A) Angular machining B) Cutting key way |
C) Cutting convex grooves D) Cutting of long slot

62. Truing of grinding wheel is done by which tool ?

A) Diamondtool B) V-tool C) White tool D) Round nose tool |
63. Cutting tool used in planning machine is

A) Multipoint cutting tool B) Single point cutting tool

C) End mill cutter D) None of these

64. Which of the following is not the part of combination set ?

A) Centre head B) Square head
C) Stock D) Protractor head
65. Which one of the following materials is used for making a grinding wheel ?
A) Calcium carbonate B) Sand
C) Granite D) Silicon carbide
A -10-