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ISRO Technician-B
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ISRO Technician-B Machinist 2015
38

ISRO Technician-B Machinist Question Paper - 2015 (Set -1) with Answer Key

38) The general point angle of a drill used for drilling holes is

110 degree

100 degree

90 degree

118 degree

Answer is:

118 degree

Explanation:

For general purpose use point angle of twist drill is 118 Degree.

The general point angle of a drill used for drilling holes is

ISRO Technician-B Machinist Question Paper - 2015 (Set -1) with Answer Key

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Related ISRO Technician-B Machinist Question Paper - 2015 (Set -1) with Answer Key

39) A carbide tool is better than HSS tool because

It is more heat resistant

has higher tool life

can be used at higher cutting speed

all the above

Answer is:

all the above

40) Instrument used for measuring angles is

Set square

Slip gauge

bevel protractor

Caliper

Answer is:

bevel protractor

Instrument used for measuring angles is

41) Gang milling is used to

Machine hard materials

Machine soft materials

Complete the machining faster

None

Answer is:

Complete the machining faster

42) The use of CNC machines provide the following advantages

Better dimensional control

higher output

less attention of operator

all the above

Answer is:

all the above

ISRO Technician-B Machinist Question Paper - 2015 (Set -1) with Answer Key

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