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MCQs

Total Questions : 207 | Page 10 of 21 pages
Question 91. Archimedes is said to have repelled attacking Roman ships with the help of “burning glass”.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 92. Which of the following is an application of solar furnace?
  1.    Producing hydrogen fuel
  2.    Drying food
  3.    Distilling water
  4.    Generating concentrating solar power technologies
 Discuss Question
Answer: Option A. -> Producing hydrogen fuel
Answer: (a).Producing hydrogen fuel
Question 93. Solar furnaces are used to generate temperatures around ______ to produce hydrogen.
  1.    1000° C
  2.    500° C
  3.    1400° C
  4.    3500° C
 Discuss Question
Answer: Option C. -> 1400° C
Answer: (c).1400° C
Question 94. What is the typical temperature generated by solar furnaces to test materials for extreme environments?
  1.    100° C
  2.    500° C
  3.    1400° C
  4.    2500° C
 Discuss Question
Answer: Option D. -> 2500° C
Answer: (d).2500° C
Question 95. What is a major drawback of solar furnaces to be used as a renewable source of energy on earth?
  1.    Heavily reliant on sun
  2.    Not reliant on sun
  3.    Finances
  4.    Cannot be used as a source of energy
 Discuss Question
Answer: Option A. -> Heavily reliant on sun
Answer: (a).Heavily reliant on sun
Question 96. What is a heat pipe?
  1.    A heat-transfer device
  2.    A pipe made of heat
  3.    A pipe that consists of heat
  4.    A heat pumping device
 Discuss Question
Answer: Option A. -> A heat-transfer device
Answer: (a).A heat-transfer device
Question 97. For better efficiency, solar collectors do not coat their transparent cover with an anti-reflective coating.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 98. Evacuated flat-plate solar collectors are a type of _______
  1.    concentrating collectors
  2.    photovoltaic technology
  3.    non-concentrating collectors
  4.    solar stills
 Discuss Question
Answer: Option C. -> non-concentrating collectors
Answer: (c).non-concentrating collectors
Question 99. Which of the following are used as absorbers in evacuated-tube solar collectors?
  1.    Carbon tubes
  2.    Wooden or metallic tubes
  3.    Plastic or glass tubes
  4.    Metallic or glass tubes
 Discuss Question
Answer: Option D. -> Metallic or glass tubes
Answer: (d).Metallic or glass tubes
Question 100. Evacuated tube solar collectors use a glass tube to surround absorber with high vacuum.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True

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