Steam Boilers, Engines, Nozzles and Turbines The function of a valve rod is To convert rotary motion of the crankshaft into to and fro motion of the valve rod To convert reciprocating motion of the piston into rotary motion of the crank To provide reciprocating motion to the slide valve To provide simple harmonic motion to the D-slide valve To convert rotary motion of the crankshaft into to and fro motion of the valve rod To convert reciprocating motion of the piston into rotary motion of the crank To provide reciprocating motion to the slide valve To provide simple harmonic motion to the D-slide valve ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The steam temperature with increase in load in case of a boiler fitted with radiation superheater Decreases Remain unaffected Increases First increases and then decreases Decreases Remain unaffected Increases First increases and then decreases ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The draught in locomotive boilers is produced by a Chimney Steam jet Centrifugal fan None of these Chimney Steam jet Centrifugal fan None of these ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Natural water circulation, by convection in water tube boilers, with increase in pressure of boiler Increases Decreases First increases and then decreases Remain unaffected Increases Decreases First increases and then decreases Remain unaffected ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The efficiency of an impulse turbine is maximum when (where Vb = Blade speed, V = Absolute velocity of steam entering the blade, and α = Nozzle angle) Vb = V² cosα Vb = 0.5 V cosα Vb = 0.5 V² cosα Vb = V cosα Vb = V² cosα Vb = 0.5 V cosα Vb = 0.5 V² cosα Vb = V cosα ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Cut-off ratio is the ratio of Clearance volume to the volume at cut-off Swept volume to the volume at cut-off Volume at cut-off to the swept volume Volume at cut-off to the clearance volume Clearance volume to the volume at cut-off Swept volume to the volume at cut-off Volume at cut-off to the swept volume Volume at cut-off to the clearance volume ANSWER DOWNLOAD EXAMIANS APP
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