1/1
Seat No.: Enrolment
GUJARAT TECHNOLOGICAL UNIVERSITY
DIPLOMA ENGINEERING SEMESTER 8(NEW) • EXAMINATION SUMMER 2018
Subject Code: 3385503 Date: 30-04-2018
Subject Name: Automation In Fabrication Technology
Time: 10:30 AM TO 01:00 PM Total Marks: 70
Instructions:
1. Attempt any five questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
4. Each question carry equal marks (14 marks)
Q.1

Define the term "Automation". Explain need of Automation in modern industry.
07

Explain basic element of Automation with neat sketch.
07
Q.2

Analogue signal is 7.6 volts. Encode, using successive Approximation Method, the signal for a 6 bit register with a full scale range of 10 volts.
07

ADAC has a reference voltage of 100 V and has 6-bit precision. Three successive sampling instances 0.5 sec apart have the following data in the data register.
INSTANCES BINARY DATA
1 101000
2 101010
3 101101
07
OR

Explain concept of automation with neat sketch.
07
Q.3

Define the term "Numerical control". Explain basic element of numerical control with neat sketch.
07

Explain following G-code and M-code in tabulated form.
G00, G01, G03, G04, G30, G32, G40, G43, G50, G71, G81, G91, M03, M09
07
OR
Q.3

Explain advantages and limitations of NC machine tool.
07

Compare conventional machine tool and CNC machine tool.
07
Q.4

Explain briefly fracture related problem in CAWA.
07

Explain briefly Computer Aided Welding design CAWD
07
OR
Q. 4

Write brief note on software and hardware requirement of WELDCOST WELDSPEC.
07

Write brief note on software and hardware requirement of WELDVOL, CUTBEST, WELDBEST.
07
Q.5

Explain different robot end effectors with neat sketch.
07

Explain with neat sketch direct arc sensing robot with weld joint tracking system.
07
OR
Q.5

Explain concept, advantages and limitations of automatic welding.
07

Explain concept of flexible automated welding cell.
07