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Which one of the statement is correct?
1. Petrol engine is a reciprocating engine
2. Petrol engine is high speed engine
3. Petrol engine uses petrol as fuel
4. Petrol engine is internal combustion engine
Who among the following invented a device called PM 2.5 which when fitted near the silencer pipe in vehicles will curb air pollution?
Who has invented a device called PM 2.5 which he claimed when fitted near the silencer pipe in vehicles will curb air pollution?
Most silencer proteins are able to bind to pre-mRNA but cannot recruit the splicing machinery.
In a SI engine, combustion stage I takes 1 ms and combustion stage II takes 1.5 ms when the engine runs at 1000 rpm. If stage I time duration is independent of engine speed what will be the additional spark advance necessary when the engine speed is doubled?
Consider the following statements regarding supercharging of Diesel engines: 1) The mechanical efficiency of a supercharged diesel engine is slightly better than that of the naturally aspirated engine. 2) There is a reduction in smoke in the case of a supercharged engine in the overload operation. 3) Increased valve overlap is used in the supercharged engine. Which of the above statements are correct?
A Turbofan engine is to be scale in order to have our desired engine characteristics. If length of the existing engine selected is 2.5 unit and required scale factor is 0.8 then, evaluate approximate length of our engine.
Engine which can be estimated through statistical jet engine model has bypass ratio of 1.2 and maximum thrust at takeoff is 8000 Newton then what should be the design diameter for this engine. Consider a subsonic non after burning engine.
A turboprop engine is to be scaled from an existing engine. If scale factor is 0.85 then, what will be the value of diameter of our engine? Given actual diameter of selected existing engine is 8.56unit.
An engine pulls four identical carriages. The engine is 2/3 the length of a carriage and the total length of the train is 86.8m. Find the length of the engine.