Power Plant MCQ

Test your knowledge with important Power Plant MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Power Plant MCQs at Bissoy

• Which of the following are negative effects on the soil and water due to conventional, mechanized farming practices?
  ক

  soil compaction

  খ

  reduction in soil organic matter

  গ

  soil erosion

  ঘ

  all of the mentioned
• The three primary soil macronutrients are _________
  ক

  carbon, oxygen and water

  খ

  copper, cadmium and carbon

  গ

  potassium, phosphorus and nitrogen

  ঘ

  boron, zinc and manganese
• Which of the following is not an important characteristic of the Green Revolution?
  ক

  mechanized agriculture

  খ

  hybrid seeds

  গ

  slash and burn

  ঘ

  monoculture
• Groundwater mining in coastal areas can result into _________
  ক

  increase in the salinity of groundwater

  খ

  decrease in the toxicity of groundwater

  গ

  decrease in the salinity of groundwater

  ঘ

  increase in the water table
• The stage in which the biological processes are used to purify water in a wastewater treatment plants is called?
  ক

  secondary sewage treatment

  খ

  primary sewage treatment

  গ

  wastewater reduction

  ঘ

  biochemical reduction
• Which of the following is considered as part of water use planning?
  ক

  waste water treatment

  খ

  water diversion projects

  গ

  storm sewer drainage

  ঘ

  all of the mentioned
• Which of the following is a major source of groundwater contamination?
  ক

  agricultural products

  খ

  landfills

  গ

  septic tanks

  ঘ

  all of the mentioned
• How the biological oxygen demand gets affected with the increased presence of organic matter in water?
  ক

  the oxygen demand increases

  খ

  the oxygen demand decreases

  গ

  the oxygen demand remains unchanged

  ঘ

  none of the mentioned
• The presence of high coliform counts in water indicate _________
  ক

  contamination by human wastes

  খ

  phosphorus contamination

  গ

  decreased biological oxygen demand

  ঘ

  hydrocarbon contamination
• Which of the following are the example of Municipal and industrial discharge pipes?
  ক

  nonpoint sources of pollution

  খ

  violations of the Clean Water Act

  গ

  point sources of pollution

  ঘ

  irrigation
• A major in-stream use of water is for _________
  ক

  producing hydroelectric power

  খ

  dissolving industrial wastes

  গ

  agricultural irrigation

  ঘ

  domestic use
• The depletion in the Ozone layer is caused by _________
  ক

  nitrous oxide

  খ

  carbon dioxide

  গ

  chlorofluorocarbons

  ঘ

  methane
• The increase in the concentration of CO2 in our environment in last fifty years; since 1960 is about _________
  ক

  20%

  খ

  10%

  গ

  14%

  ঘ

  6%
• Which of the following is not a primary contributor to the greenhouse effect?
  ক

  carbon dioxide

  খ

  carbon monoxide

  গ

  chlorofluorocarbons

  ঘ

  methane gas
• Which of the following is not as a consequence of global warming?
  ক

  rising sea level

  খ

  increased agricultural productivity worldwide

  গ

  worsening health effects

  ঘ

  increased storm frequency and intensity
• The concentration of which gas is highest in our environment?
  ক

  Oxygen

  খ

  Hydrogen

  গ

  Nitrogen

  ঘ

  Carbon dioxide
• Which is the most serious environmental effect posed by hazardous wastes?
  ক

  air pollution

  খ

  contamination of groundwater

  গ

  increased use of land for landfills

  ঘ

  destruction of habitat
• Which of the following is a prime health risks associated with greater UV radiation through the atmosphere due to depletion of stratospheric ozone?
  ক

  Damage to digestive system

  খ

  Increased liver cancer

  গ

  Neurological disorder

  ঘ

  Increased skin cancer
• Acid rain is formed due to contribution from the following pair of gases?
  ক

  Methane and ozone

  খ

  Oxygen and nitrous oxide

  গ

  Methane and sulphur dioxide

  ঘ

  Carbon dioxide and sulphur dioxide
• What is the harm from the depletion of Earth’s ozone layer?
  ক

  The average temperature of earth’s surface will increase gradually

  খ

  The oxygen content of the atmosphere will decrease

  গ

  Increased amount of Ultra violet radiation will reach earth’s surface

  ঘ

  Sea levels will rise as the polar ice caps will gradually melt
• A Gas Turbine is also known as?
  ক

  Compression Turbine

  খ

  Compensation Turbine

  গ

  Combustion Turbine

  ঘ

  None of the mentioned
• Intercooling is done in ___________
  ক

  CI Engines

  খ

  SI Engines

  গ

  Gas Turbines

  ঘ

  None of the mentioned
• Brayton cycle corresponds to ___________
  ক

  IC Engines

  খ

  Gas Turbines

  গ

  IC Engines & Gas Turbines

  ঘ

  None of the above mentioned
• The function of a distributor in a coil ignition system of I.C. engines is ___________
  ক

  to distribute spark

  খ

  to distribute power

  গ

  to time the spark

  ঘ

  to distribute current
• The pressure at the end of compression, in diesel engines, is approximately ___________
  ক

  10 bar

  খ

  15 bar

  গ

  20 bar

  ঘ

  35 bar
• The injection pressure in a diesel engine is about ___________
  ক

  10 bar

  খ

  100 bar

  গ

  150 bar

  ঘ

  300 bar
• The theoretically correct mixture of air and petrol is?
  ক

  20:1

  খ

  15:1

  গ

  40:1

  ঘ

  50:1
• In a four stroke cycle petrol engine, the inlet valve ___________
  ক

  opens at top dead centre and closes at bottom dead centre

  খ

  opens at 20° before top dead centre and closes at 40° after bottom dead centre

  গ

  opens at 20° after top dead centre and closes at 20° before bottom dead centre id may open or close anywhere

  ঘ

  none of the mentioned
• Greenhouse effect is not caused by?
  ক

  CFC’s

  খ

  Sulphur dioxide

  গ

  Carbon dioxide

  ঘ

  None of the mentioned
• Fuel cells are ___________
  ক

  Carbon cell

  খ

  Hydrogen battery

  গ

  Nuclear cell

  ঘ

  Chromium cell