191. In case of non-condensing steam engines, the pressure of steam in the cylinder during exhaust stroke is __________ the condenser pressure.
equal to
lower than
higher than
✅ The correct answer is option C.
Steam Boilers and Engines MCQs
192. The ratio of heat actually used in producing the steam to the heat liberated in the furnace, is known as
equivalent evaporation
factor of evaporation
boiler efficiency
power of a boiler
✅ The correct answer is option C.
193. Clearance ratio is the ratio of
clearance volume to the swept volume
clearance volume to the volume at cut-off
volume at cut-off to the swept volume
swept volume to the cl
✅ The correct answer is option A.
194. A Tandem type compound engine requires a larger flywheel.
TRUE
FALSE
✅ The correct answer is option A.
195. The Locomotive boiler has
137 fire tubes and 44 superheated tubes
147 fire tubes and 34 superheated tubes
157 fire tubes and 24 superheated tubes
167 fire tubes and 14
✅ The correct answer is option C.
196. The clearance in the engine cylinder
increases the mean effective pressure
increases the workdone
decreases the efficiency of the engine
all of these
✅ The correct answer is option D.
197. The value of diagram factor depends upon
initial conditions of steam
back pressure
initial pressure of steam
all of these
✅ The correct answer is option D.
198. The function of an eccentric rod is
to provide reciprocating motion to the slide valve
to convert reciprocating motion of the piston into rotary motion of the crank
to convert rotary motion of the crankshaft into to and fro motion of the valve rod
to provide simple harm
✅ The correct answer is option C.
199. A Cochran boiler is a horizontal multi-tubular boiler.
Yes
No
✅ The correct answer is option B.
200. A condenser where circulating water flows through tubes which are surrounded by steam, in known as
surface condenser
jet condenser
barometric condenser
evaporative condenser
✅ The correct answer is option A.