61. The value of reheat factor normally varies from A. 0.5 to 0.6 B. 0.9 to 0.95 C. 1.02 to 1.06 D. 1.2 to 1.6 Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
62. The critical pressure ratio of a convergent nozzle is defined as A. the ratio of outlet pressure to inlet pressure of nozzle B. the ratio of inlet pressure to outlet pressure of nozzle C. the ratio of outlet pressure to inlet pressure only when mass flow rate per unit area is min-imum D. the ratio of outlet pressure to inlet pressure only when mass flow rate = c Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
63. In fuel cell, the ______ energy is converted into electrical energy. A. mechanical B. chemical C. heat D. sound Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
64. Caking coals are those which A. burn completely B. burn freely C. do not form ash D. form lumps or masses of coke Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
65. Travelling grate stoker can burn coals at the rates of A. 50 - 75 kg/m per hour B. 75 - 100 kg/m per hour C. 100 - 150 kg/m per hour D. 150 - 200 kg/m2 per hour Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
66. For forced draught system, the function of chimney is mainly A. to produce draught to accelerate the combustion of fuel B. to discharge gases high up in the atmosphere to avoid hazard C. to reduce the temperature of the hot gases discharged D. none of the above Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
67. In a steam power plant, the function of a condenser is A. to maintain pressure below atmospheric to increase work output from the primemover B. to receive large volumes of steam exhausted from steam prime mover C. to condense large volumes of steam to water which may be used again in boiler D. all of the above Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
68. For the same draught produced the power of induced draught fan as compared to forced draught fan is A. less B. more C. same D. not predictable Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
69. The commercial sources of energy are A. solar, wind and biomass B. fossil fuels, hydropower and nuclear energy C. wood, animal wastes and agriculture wastes D. none of the above Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
70. The isentropic expansion of steam through nozzle for the steam initially superheated at inlet is approximated by equation A. pvls=C B. pv1126 = C C. pv1A = C D. pv = C Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board