Topic wise Paper Solution
| Que.No | Question/Problem | marks |
|---|---|---|
| Q 3 a ) |
State the norms of Bharat stage III and IV. |
4 |
| Que.No | Question/Problem | marks |
|---|---|---|
| Q 1b)(b) |
Morse Test |
6 |
| Q 2 b ) |
The following data refers to a trial conducted on 4-stroke petrol engine Air-fuel ratio (by mass)...... |
8 |
| Q 3 b ) |
A petrol engine has a cylinder of diameter 60 mm and stroke 100 mm....... |
4 |
| Q 3 c ) |
Explain with neat sketch two way catalytic converter. |
4 |
| Q 4a)(a) |
a) Define : i) Stroke ii) Bore |
6 |
| Q 4b)(l) |
Explain how the heat balance sheet for an IC engine is prepared............ |
6 |
| Q 6 a ) |
The following results were obtained during Morse test on 4 stroke petrol engine |
4 |
| Que.No | Question/Problem | marks |
|---|---|---|
| Q 2 c ) |
The following results were obtained during Morse test on 4-stroke petrol engine.... |
8 |
| Q 3 c ) |
State the advantages of lubricant additives (any four).... |
4 |
| Q 4a)(a) |
Define the following w.r.to. I.C. engine. |
4 |
| Q 4a)(b) |
Explain the term swept volume (V s ) w.r.to. |
4 |
| Q 4b)(a) |
What is meant by catalytic converter ?................... |
6 |
| Q 5 c ) |
List out different pollutants in exhaust gases of petrol and diesel engine..... |
8 |
| Que.No | Question/Problem | marks |
|---|---|---|
| Q 1b)(a) |
A four cylinder engine running at 1200 rpm delivers 20 kW |
6 |
| Q 1b)(b) |
Explain with neat sketch working of non dispersive infra red (NDIR) gas analyser. |
6 |
| Q 2 c ) |
A four stroke gas engine has a cylinder diameter of 25 cm and stroke 45 cm... |
8 |
| Q 3 a ) |
List any four pollutants in exhaust gases of I.C. engine with their effects. |
4 |
| Q 4a)(c) |
State the norms of Bharat stage III and IV |
4 |
| Q 4b)(a) |
Define – (i) Indicated power, (ii) Mechanical efficiency, (iii) BSFC |
6 |
| Q 4b)(b) |
List the additives of lubricant used in S.I engine and state their advantages. |
6 |
| Que.No | Question/Problem | marks |
|---|---|---|
| Q 1b)(a) |
What is the necessity of I.C. Engine Testing |
6 |
| Q 1b)(b) |
Explain the procedure for conducting Morse test............ |
6 |
| Q 2 a ) |
An I.C. Engine uses 6 kg of fuel having calorific value 44000 kJ/kg in one hour..... |
8 |
| Q 3 c ) |
Explain three way catalytic convertor........... |
4 |
| Q 4 b ) |
What are the effects of pollutants on environment ? |
4 |
| Q 4b)(b) |
The following results were obtained during Morse test on 4-stroke petrol engine. B.P....... |
6 |
| Que.No | Question/Problem | marks |
|---|---|---|
| Q 1b)(b) |
Write any three pollutants in exhaust gasses.... |
6 |
| Q 2 c ) |
The following observations were made during the test on an oil engine BP |
8 |
| Q 3 a ) |
What is catalytic convertor ? Explain two way catalytic convertor with neat sketch |
4 |
| Q 3a)(d) |
Describe the method to measure indicated power of I.C. engine. |
4 |
| Q 4a)(b) |
Define the following related I.C. engine |
4 |
| Q 4b)(a) |
List the additives of Lubricant used in S.I. engine and state their advantages. |
6 |
| Que.No | Question/Problem | marks |
|---|---|---|
| Q 1b)(i) |
What do you mean by............ |
6 |
| Q 1b)(ii) |
Explain with neat sketch any one catalytic converter........ |
6 |
| Q 2 c ) |
During a trial on 4-stroke gas engine following observations were recorded......... |
8 |
| Q 3 a ) |
The results of exhaust gas analysis....... |
4 |
| Q 4a)(iv) |
Various efficiencies of 4-stroke petrol engine run at full throttle over.......... |
4 |
| Q 4b)(l) |
State the role of following lubricant additives |
6 |