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SCIENCE AND TECH MCQs

Total Questions : 458 | Page 41 of 46 pages
Question 401. Brass gets discoloured in air because of the presence of which of the following gases in air?
  1.    Oxygen
  2.    Hydrogen sulphide
  3.    Carbon dioxide
  4.    Nitrogen
 Discuss Question
Answer: Option B. -> Hydrogen sulphide




Question 402. Which animal never drinks water in its entire life?
  1.    Kangaroo
  2.    Hippopotamus
  3.    Rat
  4.    Kangaroo rat
 Discuss Question
Answer: Option D. -> Kangaroo rat




Question 403. The largest cell is ________________
  1.    Nerve Cell
  2.    Ovum
  3.    The egg of an Ostrich
  4.    None of the above
 Discuss Question
Answer: Option C. -> The egg of an Ostrich




Question 404. What is the physical phase of life called?
  1.    Protoplasm
  2.    Cytoplasm
  3.    Organelles
  4.    None of the above
 Discuss Question
Answer: Option A. -> Protoplasm




Question 405. Which of the following metals forms an amalgam with other metals?
  1.    Tin
  2.    Mercury
  3.    Lead
  4.    Zinc
 Discuss Question
Answer: Option B. -> Mercury




Question 406. Which was the world's first successful electronic computer?
  1.    PARAM
  2.    CRAY-1
  3.    Pascaline
  4.    ENIAC electronic Numerical Integrator and computer
 Discuss Question
Answer: Option D. -> ENIAC electronic Numerical Integrator and computer




Question 407. Which of the following space agencies has launched the LISA Pathfinder ?
  1.    Japan Aerospace Exploration Agency
  2.    NASA
  3.    European Space Agency
  4.    China National Space Administration
 Discuss Question
Answer: Option C. -> European Space Agency




Question 408. The Defence Research Development Organisation (DRDO) has developed a drug named, 'Lukoskin'. It is being used in the treatment of -
  1.    Leukorrhea
  2.    Lung Cancer
  3.    Leucoderma
  4.    Leukemia
 Discuss Question
Answer: Option C. -> Leucoderma




Question 409. Who among the following used the term computer worm for the first time?
  1.    John Brunner
  2.    Alan Turing
  3.    John McCarthy
  4.    JP Eckert
 Discuss Question
Answer: Option A. -> John Brunner




Question 410. India's Indigenous Beyond Visual Range (BVR) air-to-air missile integrated by HAL on Su-30 MKI aircraft was successfully launched from Chandiur, Odisha. It is name as -
  1.    Astra
  2.    Python
  3.    Derby
  4.    IRIS
 Discuss Question
Answer: Option A. -> Astra




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