MACHINIST SEM-4

 MACHINIST SEM-4 

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1 What is the safety sign? 

A Flammable 

B Poison 

C Risk of electric shock

D Radio active

Correct Answer:- C Risk of electric shock

2 Which switch is used to stop the machine suddenly? 

A Cycle stop 

B Emergency stop 

C Toggle switch 

D Spindle stop

Correct Answer:- B Emergency stop

3 How CNC machine is controlled? 

A By operator 

B By program 

C Control system 

D Electrical unit

Correct Answer:- B By program 

4 What is part program?

 A Instruction to machine 

B Instruction to supervisor

C Instruction to manager

D Instruction to operator

Correct Answer:-  A Instruction to machine 

5 What is marked as 'x'? 

A Tool changing arm 

B Spindle 

C Tool magazine 

D Column

Correct Answer:-  C Tool magazine 

6 What is marked as 'x'? 

A Screw shaft 

B Balls 

C Ball screw nut 

D Seal

Correct Answer:-  B Balls 

7 Which code is used for "Circular interpolation clock wise direction"?

A G01     B G02      C G03     D G00

Correct Answer:-  B G02 

8 Which device is used for feed back system in CNC? 

A Control unit 

B Axis motor 

C Encoder 

D Spindle motor

Correct Answer:- C Encoder 

9 What is the operation? 

A Face milling 

B Side milling 

C Pocket milling 

D Slot milling

Correct Answer:- C Pocket milling 

10 Which machine is used for face milling operation? 

A CNC lathe 

B CNC grinding 

C CNC VMC 

D CNC wire EDM

Correct Answer:- C CNC VMC