RVUNL ME || Manufacturing || Quiz 7 (App update required to attempt this test)

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Question 1

NC code G04 is for _________.

• ACW circular interpolation
• BCCW circular interpolation
• CDwell
• Dspindle speed

Question 2

The manual part programming is done in

• AFMS machining
• BNC machining
• CCNC machining
• DDNC machining

Question 3

Consider the following statements with reference to NC machines:
1) Both closed-loop and open-loop systems are used.
2) Papers, tapes, floppy tapes and cassettes are used for data storage.
3) Digitizers may be used as interactive input devices.
4) Post-processor is an item of hardware.
Which of the above statements are correct?

• A1, 2 and 4
• B1, 3 and 4
• C2, 3 and 4
• D1, 2 and 3

Question 4

In MCU (Machine Control Unit) of codes written for a CNC machines. What does the letter H stands for?

• Aprogram sequence number
• Bpreparatory function
• Ctool radius offset
• Dtool length offset

Question 5

Aviation industries uses which type of manufacturing technology to produce aircrafts parts with high degree of accuracy and reliability?

• Apowder metallurgy
• Bcasting
• CCNC machining
• D3D prototyping

Question 6

A Stepper motor drive having a step angle of 7.2 step is used for driving an axis in the NC machine. Lead screw with Pitch of 3 mm and double start thread is used. What is Basic length unit (BLU) in mm ?

Answer

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