Thermal power plants And Steam Power plant MCQs with Answers Steam Power plant Objective Questions and Answers 1. The thermal efficiency of a steam power station is __________ a) 38% b) 28% c) 40% d) 45% Answer: 28% 2. In the steam condensing power plants a) The amount of energy extracted per kg of steam is increased b) the steam, converted into water, can be re-circulated with the help of pump c) Both (a) and (b) d) None of the above Answer: Both (a) and (b) 3. Rankine cycle efficiency in a good steam power station may be in the range between __________ a) 15% - 20% b) 35% - 40% c) 50% - 60% d) 90% - 95% Answer: 35% - 40% 4. A steam power station requires space __________ a) Equal to diesel power station b) More than diesel power station c) More than diesel power station d) None of the above Answer: More than diesel power station Design of Solar Thermal Power Plants 5. The height of chimney in a staem power plant is governed by __________ a) Flue gases quantity b) The draught to be pr

  Top 100+ Power Plant Engineering Objective Questions & Answers 1. The effect of considering friction in steam nozzles for the same pressure ratio leads to ______ a) increase in dryness fraction of exit steam b) decrease in dryness fraction of exit steam c) no change in the quality of exit steam d) decrease or increase of dryness fraction of exit steam depending upon inlet quality Answer: increase in dryness fraction of exit steam 2. The isentropic expansion of steam through nozzle for the steam initially dry saturated at inlet is approximated by equation.  a) pv = C b) pv1A = C c) pv1i = C d) pv Answer: pv 3. The effect of considering friction losses in steam nozzle for the same pressure ratio leads to ______ a) increase in exit velocity from the nozzle b) decrease in exit velocity from the nozzle c) no change in exit velocity from the nozzle d) increase or decrease depending upon the exit quality of steam Answer: decrease in exit velocity from the nozzle 4. In steam turbines the

  Solar thermal power plant (MCQ) Objective Questions and answers 1. Which of the following processes take place in solar distillation a) evaporation b) condensation c) both (a) and (b) d) solidification Answer: both (a) and (b) 2. Un-glazed solar collectors are designed primarily for a) space heating b) crop drying c) pre-heat make up ventilation air d) all of the above Answer: pre-heat make up ventilation air 3. The function of a solar collector is to convert ______ a) Solar Energy into Electricity b) Solar Energy radiation c) Solar Energy thermal energy d) Solar Energy mechanical energy Answer: Solar Energy thermal energy 4. Most of the solar radiation received on earth surface lies within the range of ______ a) 0.2 to 0.4 microns b) 0.38 to 0.78 microns c) 0 to 0.38 microns d) 0.5 to 0.8 microns Answer: 0.2 to 0.4 microns SR ROBOTICS Single Axis Solar Tracking System Handmade Working Project 5. Photovoltaic cell or solar cell converts ______ a) Thermal energy into electricity b) El

Instrumentation and Control for Power Plants 1.  Feed water from the hot well is supplied to steam generator by using the _________  a) Sewers b) Cistern c) Water trough d) Feed pump Answer: Feed pump 2. Super heater tubes are made up of what type of material?  a) Copper alloy b) Carbon steel c) Titanium alloy d) Iron Answer: Carbon steel 3. By what means the power in the steam power plant is developed?  a) Condenser b) Electric power system c) Prime mover c) Economizer Answer: Prime mover 4. What is the main objective beyond treating feed water?  a) To remove solid particle b) To prevent damage by scaling c) To speed up the steaming process d) To control conductivity Answer: To prevent damage by scaling 5. What is the pH value at which the boiler is alkalized?  a) 9.0 b) 5.4 c) 6.9 d) 5.7 Answer: 9.0 6. What is the main purpose of using an economizer in a boiler? a) To control the process of steam conversion b) To reduce energy consumption c) To increase the temperature of boiler d) T