B.TECH - Semester 8 design of ic engines Question Paper 2019 (nov)
Practice authentic previous year university questions for better exam preparation.
Sample Questions
- Mention the effect of firing order in the engine performance.
- What do you meant by Air standard efficiency? Give the air standard efficiency of a diesel engine.
- What is meant by exhaust blow down?
- Compare scavenge ratio and delivery ratio.
- What do you meant by reference mass? How it is related to two stroke engine performance?
- Compare Turbocharging and Supercharging.
- What do you meant by cut off ratio? How it affects the efficiency of an engine?
- How exhaust gas analysis is done using five gas analyzer?
- How Laser type speed sensor works?
- Give the design procedure of engine piston. ( $\mathbf{1 0} \boldsymbol{\times} \mathbf{4} \boldsymbol{=} \mathbf{4 0}$ Marks) P.T.O. Answer any one question from each Module. Each question carries 20 marks.
- A six-cylinder, gasoline engine operates on the four-stroke cycle. The bore of each cylinder is 80 mm and the stroke is 100 mm . The clearance volume per cylinder is 70 cc . At the speed of 4100 rpm , the fuel consumption is $19.8 \mathrm{~kg} / \mat...
- A 2 litre four stroke direct injection diesel engine is designed to run at 4500 rpm with a power output of 45 kW . The volumetric efficiency is found to be 80 percent. The brake specific fuel consumption is $0.071 \mathrm{~kg} / \mathrm{MJ}$ and the ...
- A 2 litre four stroke direct injection diesel engine is designed to run at 4500 rpm with a power output of 45 kW . The volumetric efficiency is found to be 80 percent. The brake specific fuel consumption is $0.071 \mathrm{~kg} / \mathrm{MJ}$ and the ...
- A 2 litre four stroke direct injection diesel engine is designed to run at 4500 rpm with a power output of 45 kW . The volumetric efficiency is found to be 80 percent. The brake specific fuel consumption is $0.071 \mathrm{~kg} / \mathrm{MJ}$ and the ...
- (a) Explain the terms trapping efficiency and charging efficiency. Also mention its effects on engine performance.
- (b) How manifold absolute pressure is measured in IC engines?
- (a) Explain the steps involved in the design of Intake and exhaust port of a Two stroke engine.
- (b) What are the advantages and Disadvantages of Two stroke engines?
- Determine the dimensions of an I section connecting rod for a petrol engine from the following data. Diameter of piston $=110 \mathrm{~mm}$, mass of reciprocating parts 2 kg , length of connecting rod between the centers $=325 \mathrm{~mm}$, stroke l...
- Design a carbon steel centre crankshaft for a single acting four stroke single cylinder engine for the following data: Bore diameter $=400 \mathrm{~mm}$, Stroke $=600$ mm , Engine speed 200 rpm , MEP $=0.5 \mathrm{Mpa}$, Maximum combustion pressure =...