Compression Ratio in diesel engine is lesser than that in Spark Ignition engine.
Explanation: In diesel engine, there is no spark to ignite, charge is compressed to greater extent to support self-ignition.
Petrol engine are more economical than diesel engine.
Explanation: Diesel engine have better thermal efficiency and hence are more economical.
There are ____ types of liners.
Explanation: Dry liners and wet liners.
If no re boring allowance is to be given, then thickness of cylinder wall is max pressure is 3.5N/mm², bore diameter=200mm and permissible tensile stress is 40N/mm².
If diameter of cylinder of bore is 120mm, then thickness of the cylinder will be
Explanation: t=0.045D + 1.6.
If diameter of cylinder bore is 120mm, then thickness of dry liner will be
Explanation: t= 0.03D to 0.035D.
If diameter of cylinder bore is 120mm, then thickness of water jacket wall will be
Explanation: p=t/3 to 3t/4, where t= thickness of cylinder wall=7mm.
If diameter of cylinder bore is 120mm, then thickness of water cylinder flange will be
Explanation: q=1.2t to 1.4t.
If nominal diameter of bolt used is 20mm, then find the radial distance between outer diameter of flange and pitch circle diameter of studs.
Explanation: r=d+6 to 1.5d i.e. 26mm to 30mm.
The circumferential hoop stress and longitudinal stress are both shear stress.
Explanation: They both are tensile stress.