General Science Practice Question and Answer

Q:

Optical fibres are mainly used in?

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  • 1
    Musical Instruments
    Correct
    Wrong
  • 2
    Food Industry
    Correct
    Wrong
  • 3
    Communication
    Correct
    Wrong
  • 4
    Weaving
    Correct
    Wrong
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Answer : 3. "Communication"

Q:

Which one of the following organ is affected by Malaria?

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  • 1
    Kidney
    Correct
    Wrong
  • 2
    Spleen
    Correct
    Wrong
  • 3
    Heart
    Correct
    Wrong
  • 4
    Lungs
    Correct
    Wrong
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Answer : 2. " Spleen"

Q:

Which of the following herb is not used as tonic?

993 1

  • 1
    Brahmi
    Correct
    Wrong
  • 2
    Shankhaphuli
    Correct
    Wrong
  • 3
    Safed Musli
    Correct
    Wrong
  • 4
    Sadabahar
    Correct
    Wrong
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Answer : 4. "Sadabahar "
Explanation :

The most important characteristic of evergreen plants is that they always remain green, no matter what the weather. They do not shed their leaves, but replace them with new leaves every year. Evergreen plants thrive well in cold or dry climates, where plants that lose their leaves in winter may die.

Q:

‘Farad’ is the unit of: 

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  • 1
    Resistance
    Correct
    Wrong
  • 2
    Conductanc
    Correct
    Wrong
  • 3
    Capacitance
    Correct
    Wrong
  • 4
    Inductance
    Correct
    Wrong
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Answer : 3. "Capacitance "

Q:

Burns caused by steam are much more severe than those caused by boiling water because-

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  • 1
    Steam pierces through the pores of body quickly
    Correct
    Wrong
  • 2
    Steam has latent heat
    Correct
    Wrong
  • 3
    Temperature of steam is higher
    Correct
    Wrong
  • 4
    Steam is gas and engulfs the body quickly
    Correct
    Wrong
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Answer : 3. "Temperature of steam is higher"

Q:

Why do cat's eyes glow at night?

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  • 1
    because of the special lens
    Correct
    Wrong
  • 2
    no clear cause known
    Correct
    Wrong
  • 3
    due to gene effect
    Correct
    Wrong
  • 4
    due to tapetum lucidum
    Correct
    Wrong
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Answer : 4. "due to tapetum lucidum"
Explanation :

Cats (and many other animals) have a layer of cells behind their retinas called the tapetum lucidum. This layer enhances night vision by reflecting light that passes through the retina back into the eyes. When light enters the eye, some of it is absorbed by the retina's cells, allowing the brain to process visual information. However, the tapetum lucidum reflects the remaining light back through the retina, giving the photoreceptor cells a second chance to detect the light. This reflection of light enhances their night vision capabilities and is what causes a cat's eyes to appear to glow in the dark or in low light conditions.


Q:

Persons suffering from myopia are advised to use

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  • 1
    Convex lens
    Correct
    Wrong
  • 2
    Concave lens
    Correct
    Wrong
  • 3
    Plano-convex lens
    Correct
    Wrong
  • 4
    Plano-concave lens
    Correct
    Wrong
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Answer : 2. "Concave lens "

Q:

Pancreatic juice contains which enzyme that breaks down emulsified fats?

987 0

  • 1
    Lipase
    Correct
    Wrong
  • 2
    Pepsin
    Correct
    Wrong
  • 3
    Trypsin
    Correct
    Wrong
  • 4
    Amylase
    Correct
    Wrong
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Answer : 1. "Lipase"
Explanation :

1. Pancreatic juice contains a lipase enzyme, which decomposes emulsified fats.

2. Lipase: It is an enzyme found in pancreatic juice and responsible for the breakdown of emulsified fats.

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