Steam Boilers, Engines, Nozzles and Turbines
A compound steam engine in which piston rods of high pressure and low pressure cylinders are attached to two different cranks set at 90° to each other, is called

Both (A) and (B)
Woolf type compound engine
Receiver type compound engine
Tandem type compound engine

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Steam Boilers, Engines, Nozzles and Turbines
Blow off cock in a boiler is used to

Empty the boiler when required and to discharge the mud, scale or sediments which are accumulated at the bottom of the boiler
Control the flow of steam from the boiler to the main pipe and to shut off the steam completely when required
Increase the temperature of saturated steam without raising its pressure
Put off fire in the furnace of the boiler when the level of water in the boiler falls to an unsafe limit

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Steam Boilers, Engines, Nozzles and Turbines
The function of an eccentric rod is

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 provide reciprocating motion to the slide valve
To convert reciprocating motion of the piston into rotary motion of the crank

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Steam Boilers, Engines, Nozzles and Turbines
Besides mean effective pressure, the data required to determine the indicated power of an engine include

Piston diameter, specific fuel consumption and Calorific value of fuel
Specific fuel consumption, speed of rotation and torque
Piston diameter, length of stroke and speed of rotation
Piston diameter, length of stroke and calorific value of fuel

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