Hall Ticket No Question Paper Code: BCC005
INSTITUTE OF AERONAUTICAL ENGINEERING
(Autonomous)
M.Tech II Semester End Examinations (Supplementary) January, 2019
Regulation: IARE-R16
COMPUTER AIDED MANUFACTURING
(CAD/CAM)
Time: 3 Hours Max Marks: 70
Answer ONE Question from each Unit
All Questions Carry Equal Marks
All parts of the question must be answered in one place only
UNIT I
1. Explain in detail the macro statement in APT with an example.
Discuss the advantages of CAD/CAM in NC programming.
2. Explain the four types of APT statements with examples.
Brief out the initial steps of NC programming with Interactive graphics and explain tool path
generation.
UNIT II
3. Discuss the functions of CNC machines with the help of block diagram.
Explain the two different types of DNC with the block diagram.
4. Explain the operation of an adaptive control with constraints (ACC system) with a neat diagram.

Explain the adaptive control of machining process for grinding.
UNIT III
5. Explain the general structure of post processor with a neat sketch.
Discuss the necessity of a post processor and write the advantages and disadvantages of post
processor.
6. What is DAPP? Explain the major variables in DAPP based post processor.
Explain the various communication channels and major variables in DAPP based post processor
in detail.
UNIT IV
7. Explain about the Microcontrollers and its hardware components.
Explain applications of Programmable logical controller in Computer numerical control machines.

Page 1 of 2
8. Explain the structure and selection of microcontrollers.
Discuss in detail the basic structure and principle of operations in Programmable logical controller.

UNIT V
9. Discuss the benefits and limitations of CAPP system.
Explain Coordinate measuring machine in detail. Discuss the limitations of CMM.
10. Explain briefly the expert systems and its structures.
Explain any two optical inspection methods in detail.