Practice Question and Answer

Q:

The value of $$ {3sin30°-4sin^{3}30°}$$

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  • 1
    Sin30°
    Correct
    Wrong
  • 2
    Cos60°
    Correct
    Wrong
  • 3
    sin90°
    Correct
    Wrong
  • 4
    Cos90°
    Correct
    Wrong
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Answer : 3. "sin90°"

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Answer : 3. " inrage "

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Answer : 1. "upon"

Q:

Which of the following is the most common kidney stone-forming compound?

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  • 1
    Calcium oxalate
    Correct
    Wrong
  • 2
    Magnesium oxide
    Correct
    Wrong
  • 3
    Sodium bicarbonate
    Correct
    Wrong
  • 4
    Magnesium citrate
    Correct
    Wrong
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Answer : 1. "Calcium oxalate"

Q:

What approximate value should come in the place of question mark (?) in the following question?
 (8423 + 3120 + 6543) ÷ (1536 + 377 + 189) = ?

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  • 1
    5
    Correct
    Wrong
  • 2
    14
    Correct
    Wrong
  • 3
    9
    Correct
    Wrong
  • 4
    18
    Correct
    Wrong
  • 5
    3
    Correct
    Wrong
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Answer : 3. "9"

Q: Two trains are moving in opposite directions at 60 km/hr and 90 km/hr. Their lengths are 1.10 km and 0.9 km respectively. The time taken by the slower train to cross the faster train in seconds is ? 1689 0

  • 1
    42 sec
    Correct
    Wrong
  • 2
    44 sec
    Correct
    Wrong
  • 3
    46 sec
    Correct
    Wrong
  • 4
    48 sec
    Correct
    Wrong
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Answer : 4. "48 sec"
Explanation :

Answer: D) 48 sec Explanation: Relative speed = 60 + 90 = 150 km/hr. = 150 x 5/18 = 125/3 m/sec. Distance covered = 1.10 + 0.9 = 2 km = 2000 m. Required time = 2000 x 3/125 = 48 sec.

Q:

Which of the following protocols is not correctly related to its issue?

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  • 1
    1987 Montreal Protocol - Ozone Depleting Substances
    Correct
    Wrong
  • 2
    1979 Bone Conference - Conservation of Migratory Species
    Correct
    Wrong
  • 3
    1989 Basel Convention - Regulation of transboundary movement, transit, handling and use of living modified organisms
    Correct
    Wrong
  • 4
    1998 Rotterdam Conference - Consent in the international trade of some hazardous chemicals and pesticides
    Correct
    Wrong
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Answer : 3. "1989 Basel Convention - Regulation of transboundary movement, transit, handling and use of living modified organisms"

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