Steam Boilers, Engines, Nozzles and Turbines In an impulse turbine, steam expands Wholly in nozzle None of these Wholly in blades Partly in the nozzle and partly in blades Wholly in nozzle None of these Wholly in blades Partly in the nozzle and partly in blades ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The cylinder dimensions of a compound engine may be designed on the basis of Equal initial piston loads on all pistons for obtaining same size of piston rod, connecting rod etc. for all cylinders Equal power developed in each cylinder for uniform turning moment All of these Equal temperature drop in each cylinder for economy of steam Equal initial piston loads on all pistons for obtaining same size of piston rod, connecting rod etc. for all cylinders Equal power developed in each cylinder for uniform turning moment All of these Equal temperature drop in each cylinder for economy of steam ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The function of a valve rod is To convert reciprocating motion of the piston into rotary motion of the crank To provide reciprocating motion to the slide valve To convert rotary motion of the crankshaft into to and fro motion of the valve rod To provide simple harmonic motion to the D-slide valve To convert reciprocating motion of the piston into rotary motion of the crank To provide reciprocating motion to the slide valve To convert rotary motion of the crankshaft into to and fro motion of the valve rod To provide simple harmonic motion to the D-slide valve ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines By compounding the expansion of steam in two or more cylinders, the length of stroke Decreases Does not change Increases None of these Decreases Does not change Increases None of these ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines A double acting steam engine with a cylinder diameter of 190 mm and a stroke of 300 mm has a cut-off of 0.35. The expansion ratio for this engine is nearly 6.65 2.86 1.05 10.05 6.65 2.86 1.05 10.05 ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The economiser is used in boilers to Extract heat from the exhaust flue gases Increase flue gas temperature Increase thermal efficiency of boiler Economize on fuel Extract heat from the exhaust flue gases Increase flue gas temperature Increase thermal efficiency of boiler Economize on fuel ANSWER DOWNLOAD EXAMIANS APP
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