FITTER BITS DAY (04)

61) the value of each division of the vernier scale of a bevel protector is... 

A) 1 DEGREE 5'

62) the part of a vernier height gauge on which the main scale division are graduate is the...

A) BEAM

63) the part of a vernier bevel protractor which is normally used as a reference base for measuring angles is the... 

A) STOCK

64) the value of each division of the vernier scale of a bevel protractor is... 

A) 1 DEGREE 55'

65) the least count of a vernier bevel protractor is... 

A) 5'

66) the part of a bevel protractor, which comes in contact with  the inclined surface while measuring is the...  

A) BLADE 

67) appropriate tool used for spot facing operation is..  

A) FLY CUTTERS

68) the part of a vernier bevel protractor, on which main scale divisions are marked is the .... 

A) DISC

69) the process of beveling  the end of a hole is called... 

A) COUNTER SINKING

70) the bottom surface joining the two sides of adjacent thread (external thread) is...

A) ROOT

71) the process of enlarging the end of a hole for accommodating the socket screw head is.. 

A) COUNTER BORING 

72) what is the thread angle of isometric thread? 

A) 60 degrees 

73) the form of thread used in carpenters vice is... 

A) SAW TOOTH  THREAD 

74) what is the expansion of the term UNC ? 

A) UNIFIED COARSE

75) as per BIS hot rolled steel flats are designated (in the order of sequence) by ... 

A) WIDTH (X) ISF (X) THICKNESS AS PER IS 1731

76) the reamer is used for... 

A) ENLARGING AND FINISHING HOLES

77) as per BIS standard sheet strips are designated ( in the order of sequence) by...

A) WIDTH (X) ISST (X) THICKNESS AS PER IS 1730

78) which grade angle plates are used in general machine shop work ? 

A) GRADE -2

79) state the specification of steel unequal angel of size 45X30 and thickness off 5MM as per IS 808...

A) <4530X5

80) what should be the blank size of a round road for cutting a M 15 tread, the pitch is 1.5 MM? 

A) 15MM

FITTER BITS DAY (05)