RVS TECHNICAL CAMPUS COIMBATORERVS FACULTY OF ENGINEERING

COIMBATORE 641 402

UNIT TEST 2, AUGUST 2014DEPARTMENT OF AUTOMOBILE ENGINEERINGAT-6301 AUTOMOTIVE ENGINES Year/Branch/Section: II / AUTO Duration: 1.30 Hrs

Date & Session: 3-08-2014 & AN Max. Marks: 50

Part A (5*2=10)

Answer ALL the Questions

1. What are the stages of combustion in a SI engines?2. Explain the type of vibration produced when auto ignition occurs?3. List out some of the knock limited parameters & method to detect knocking in SI engine?4. What is ignition delay period? 5. What are the objectives to be kept in mind during design of combustion chamber & difference between DI and IDI system ?Part B (1*8 + 2*16) =40

6. Explain the combustion chamber requirements and its types for SI engines with a neat sketch?7. a. Explain the stages of combustion in SI engine and phenomenon of knock in SI engines and its limiting parameter?[OR] b. Explain the flame front propagation and factors influencing the flame speed?8. a Explain the stages of combustion in CI engines and phenomenon of knock in CI engines?[OR] b. Explain the direct/indirect types of combustion chamber for CI engine? List the factors affecting the delay period?Faculty-In Charge HoD RVS TECHNICAL CAMPUS COIMBATORERVS FACULTY OF ENGINEERING

COIMBATORE 641 402

UNIT TEST 2, AUGUST 2014DEPARTMENT OF AUTOMOBILE ENGINEERING

AT-6301 AUTOMOTIVE ENGINES

Year/Branch/Section: II / AUTO Duration: 1.30 Hrs

Date & Session: 3-08-2014 & AN Max. Marks: 50

Part A (5*2=10)

Answer ALL the Questions

1. What are the stages of combustion in a SI engines?2. Explain the type of vibration produced when auto ignition occurs?3. List out some of the knock limited parameters & method to detect knocking?4. What is ignition delay period? 5. What are the objectives to be kept in mind during design of combustion chamber?Part B (1*8 + 2*16) =40

6. Explain the combustion chamber requirements and its types for SI engines with a neat sketch?

7. a. Explain the stages of combustion in SI engine and phenomenon of knock in SI engines and its limiting parameter?

[OR]

b. Explain the flame front propagation and factors influencing the flame speed?8. a Explain the stages of combustion in CI engines and phenomenon of knock in CI engines?[OR]

b. Explain the direct/indirect types of combustion chamber for CI engine?Faculty-In Charge HoD RVS TECHNICAL CAMPUS COIMBATORERVS FACULTY OF ENGINEERING

COIMBATORE 641 402

UNIT TEST 2, AUGUST 2014DEPARTMENT OF MECATRONICS ENGINEERING

ME-3310 CNC TECHNOLOGY

Year/Branch/Section: III / MCS Duration: 1.30 Hrs

Date & Session: 2-08-2014 & AN Max. Marks: 50

Part A (5*2=10)

Answer ALL the Questions

1. What is tool pre-setter?2. What are qualified tools in a CNC machine?3. What is meant by Encoder?4. Define Open & Closed architecture control?5. What do you know about the principle of a resolver?Part B (1*8 + 2*16) =40

6. Explain about the tool presetter with neat sketch?

7. a. Discuss the operational feature available in CNC system?[OR]

b. Explain the type of measuring system available in CNC system and explain the about the working principle of encoders?8. a. Explain the following in detail

(i) Linear scale (ii) Resolver (iii) Inductosyn[OR] b. Explain in detail about the workholding devices used in machining and turning centers? Explain about the qualified toolsFaculty-In Charge Class Advisor HoD RVS TECHNICAL CAMPUS COIMBATORERVS FACULTY OF ENGINEERING

COIMBATORE 641 402

UNIT TEST 2, AUGUST 2014DEPARTMENT OF MECATRONICS ENGINEERING

ME-3310 CNC TECHNOLOGY

Year/Branch/Section: III / MCS Duration: 1.30 Hrs

Date & Session: 2-08-2014 &AN Max. Marks: 50

Part A (5*2=10)

Answer ALL the Questions

1. What is tool pre-setter?2. What are qualified tools in a CNC machine?

3. What is meant by Encoder?4. Define Open & Closed architecture?5. What do you know about the principle of a resolver?Part B (1*8 + 2*16) =40

6. Explain about the tool presetter?

7. a. Discuss the operational feature available in CNC system?

[OR]

b. Explain the type of measuring system available in CNC system and explain the about the working principle of encoders?

8. a. Explain the following in detail

(i) Linear scale (ii) Resolver (iii) Inductosyn

[OR] b. Explain in detail about the workholding devices used in machining and turning centers? Explain about the qualified tools ? Faculty-In Charge Class Advisor HoD