211. The function of a crosshead is to guide motion of the __________ and to prevent it from bending.
piston rod
connecting rod
eccentric rod
valve rod
✅ The correct answer is option A.
Steam Boilers and Engines MCQs
212. A safety valve mainly used with locomotive and marine boilers is
lever safety valve
dead weight safety valve
high steam and low water safety valve
spring loaded safety valve
✅ The correct answer is option D.
213. The function of a connecting rod is not to convert reciprocating motion of the piston into rotary motion.
TRUE
FALSE
✅ The correct answer is option B.
214. The average operating pressure of Benson boiler is
100 bar
150 bar
200 bar
250 bar
✅ The correct answer is option D.
215. The power of a boiler may be defined as
the ratio of heat actually used in producing the steam to the heat liberated in the furnace
the amount of water evaporated or steam produced in kg per kg of fuel burnt
the amount of water evaporated from and at 100° C into dry and saturated steam
the evaporation of 15.653 kg of water per hour from and at 100° C
✅ The correct answer is option B.
216. The draught produced by a steam jet issuing from a nozzle placed in the ashpit under the fire grate of the furnace is called
induced steam jet draught
chimney draught
forced steam jet draught
none of these
✅ The correct answer is option C.
217. 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
1.05
2.86
6.65
10.05
✅ The correct answer is option B.
218. Fire tube boilers are
internally fired
externally fired
internally as well as externally fired
none of these
✅ The correct answer is option A.
219. Loeffler boiler is a water tube boiler using a forced circulation of water.
TRUE
FALSE
✅ The correct answer is option A.
220. The fire tubes in a Scotch marine boiler are
horizontal
vertical
inclined
✅ The correct answer is option A.