General Science Questions Practice Question and Answer

Q:

Is jean?

2167 1

  • 1
    A part of the liver
    Correct
    Wrong
  • 2
    A part of the RNA
    Correct
    Wrong
  • 3
    A portion of chromosomes
    Correct
    Wrong
  • 4
    A part of DNA
    Correct
    Wrong
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Answer : 4. "A part of DNA"

Q:

In the following is not an example of refraction of light.

2165 0

  • 1
    Twinkling effect of stars
    Correct
    Wrong
  • 2
    Mirages
    Correct
    Wrong
  • 3
    Bending of light while passing through a medium
    Correct
    Wrong
  • 4
    lateral inversion
    Correct
    Wrong
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Answer : 4. "lateral inversion"

Q: Which best describes genetic mutations? 2161 0

  • 1
    Genetic mutations that cause diseases are always passed on to offspring.
    Correct
    Wrong
  • 2
    Some inherited genetic mutations can be good for the offspring.
    Correct
    Wrong
  • 3
    Different genetic mutations cause few forms of cancer.
    Correct
    Wrong
  • 4
    Somatic mutations can be inherited from parents or acquired during life.
    Correct
    Wrong
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Answer : 2. "Some inherited genetic mutations can be good for the offspring."
Explanation :

Answer: B) Some inherited genetic mutations can be good for the offspring. Explanation: Mutations are accidents in the copying of DNA. A genetic mutation is a random change in the DNA that is passed on further generations of cells and or organisms.    Genetic mutations are accidental changes in the DNA in the germ cells or early in the formation of the embryo. These changes if they are in the germ cell will be passed on to other organisms formed by sexual reproduction or asexual reproduction. An example would be the golden delicious apple. A lost of genetic information due to a mutation resulted in a different color of fruit.   Genetic mutations that cause diseases are not always passed on to offspring.

Q:

Are fan boxes installed in roofs?

2154 0

  • 1
    Casing-keeping wiring
    Correct
    Wrong
  • 2
    in cleat wiring
    Correct
    Wrong
  • 3
    in conduit wiring
    Correct
    Wrong
  • 4
    Wiring
    Correct
    Wrong
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Answer : 3. "in conduit wiring"
Explanation :

Most building codes require ceiling fans to be mounted on special fan-rated boxes made of metal or strong plastic with deep-threaded holes for the mounting screws. The box must be mounted firmly by attaching it directly to a framing member or using a fan-rated brace.

Q:

Curd contains mainly______acid.

2150 0

  • 1
    Benzoic
    Correct
    Wrong
  • 2
    Fumaric
    Correct
    Wrong
  • 3
    Lactic
    Correct
    Wrong
  • 4
    Malic
    Correct
    Wrong
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Answer : 3. "Lactic"

Q:

The metal used to recover copper from a solution of copper sulphate is

2148 0

  • 1
    Na
    Correct
    Wrong
  • 2
    Ag
    Correct
    Wrong
  • 3
    Hg
    Correct
    Wrong
  • 4
    Fe
    Correct
    Wrong
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Answer : 4. "Fe"

Q:

Which principle does the optical fiber work on? 

2147 1

  • 1
    Full internal reflection
    Correct
    Wrong
  • 2
    Refraction
    Correct
    Wrong
  • 3
    Scattering
    Correct
    Wrong
  • 4
    Interference
    Correct
    Wrong
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Answer : 1. "Full internal reflection "

Q: What is Calcium sulphate ? 2146 0

  • 1
    epsom salt
    Correct
    Wrong
  • 2
    blue vitroil
    Correct
    Wrong
  • 3
    gypsum salt
    Correct
    Wrong
  • 4
    potash alum
    Correct
    Wrong
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Answer : 3. "gypsum salt"

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