MACHINIST 3rd SEM MCQ QUESTION ANSWER - 11

MACHINIST 3rd SEM MCQ QUESTION ANSWER - 11

 MACHINIST 3rd SEM ALL QUESTION ANSWER 

171 What is the function of M02 code in part programming? 

A Programme stop 

B Optional stop 

C End of programme execution

D Coolant ON

Correct Answer:- C End of programme execution

172 Which code is used for peck drilling in FANUC controller system? 

A G 80         B G 76           C G 72          D G 74

Correct Answer:- D G 74

173 Which G code describe machine tool movement of grooving cycle? 

A G 73             B G 75           C G 92            B G 98

Correct Answer:- B G 75

174 What is the function of G 32 code? 

A Rapid traverse 

B Liner inter potation 

C Thread cutting 

D Circulation inter polation

Correct Answer:- C Thread cutting 

175 What is the role of G-wards in part programming function? 

A Preparatory function

B Sequence of operation by the tool

C Indicate position of tool motion

D Specify the cutting speed process

Correct Answer:- A Preparatory function

176 Which is the programme for depth of cut of 2-5 mm is given? 

A N003 M0 8 G 01X -2.5

B N004 G 01 Z -2.5 

C N004 G 01 Z -2.5 

D N007 G 00 X + 5

Correct Answer:- A N003 M0 8 G 01X -2.5

177 Which is the part programme to limit the RPM to 3000? 

A G 92 S 3000 

B G 96 N 3000 

C G 00 T 3000 

D G 01 S 250

Correct Answer:- A G 92 S 3000 

178 Which common word address used to miscellaneous function in CNC lathe?

A N      B G      C S      D M

Correct Answer:- D M

179 Which M-code is defined and implement to spindles stop? 

A M05      B M08       C M11       D M14

Correct Answer:- A M05

180 What is the code M11 defined by the machine tool? 

A Coolant OFF 

B Coolant ON 

C Chuck close 

D Door close

Correct Answer:- C Chuck close 

181 Which code describe the auxiliary function of CNC machine? 

A N- words 

B M- words 

C G- words 

D T- words

Correct Answer:- B M- words 

182 Which is the programme for simple turning operation for the length of -30 mm?

A N 008 G 01 Y -2.5 

B N 011 G 00 X 020 

C N 009 G 01 Z -30 N 

D 010 G 01 X 5 Z - 30

Correct Answer:- C N 009 G 01 Z -30 N 

183 Which is the method in avoidance of collisions due to programme? 

A Full cycle simulation

B Reduce motor speed

C Give less feed 

D Reduce cutter speed

Correct Answer:- A Full cycle simulation

184 What is the feed of CNC machine XYZ axis? 

A 1 to 2 mm/min 

B 5 to 50 mm/min 

C 1 to 1000 mm/min 

D 1 to 100 mm/min

Correct Answer:- C 1 to 1000 mm/min 

185 How many times the cutting speed of ceramic tool is greater than H.S.S?

A 20 times 

B 15 times 

C 4 times 

D 42 times

Correct Answer:- D 42 times