STEAM BOILERS, ENGINES, NOZZLES AND TURBINES QUIZ

Simple reaction turbine

Pressure-velocity compounded turbine

Velocity compounded turbine

Pressure compounded turbine

All of these

Keeping the expansion ratio small in each cylinder

The efficient steam jacketing of the cylinder walls

Superheating the steam supplied to the engine cylinder

Pressure and velocity both decreases

Pressure and velocity both increases

Pressure decreases while velocity increases

Pressure increases while velocity decreases

5 to 7.5 m

7 to 9 m

2 to 4.5 m

3 to 5 m

To provide reciprocating motion to the slide valve

To convert reciprocating motion of the piston into rotary motion of the crank

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

Constant temperature process

Non-heat transfer process

Essentially an isentropic process

Reversible process

Water is converted into steam in one pass without any recirculation

Feed pump is employed to supplement natural circulation in water wall type furnace

Heating takes place at bottom and the water supplied at bottom gets converted into the mixture of steam bubbles and hot water which rise to drum

Water is supplied in drum and through down comers located in atmospheric condition it passes to the water wall and rises to drum in the form of mixture of water and steam

Equal

More

None of the listed here

Less

Isentropic

Isothermal

Hyperbolic

Polytropic

All of the listed here

Mercury boiler

Steam turbine

Steam condenser