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NDA - Science Test 1428
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NDA - Science Test 1428
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  • Question 1/5
    1 / -0.33
    In which of the following crystal oscillator is used?
    Solutions

     Crystal oscillators can be found in the radio transmitters as these are the most common type of linear oscillator, which is required to stabilize the frequency of various radio transmitters and helps in generating the clock signal in computers and quartz clocks.

  • Question 2/5
    1 / -0.33

    A person wearing a wrist watch that keeps the correct time at the equator goes to N-pole. His watch will

    Solutions

     A spring wrist watch keeps correct time at the equator wrist watches because it doesn't work on the principle of gravity (like pendulum clocks). Hence, there will be no effect whether it is taken to the poles. In both cases either it is quartz watch or spring watch, ‘g’ has no role to play.

  • Question 3/5
    1 / -0.33
    Which of the following taxonomic ranks is more specific than a phylum but less specific than a class?
    Solutions

    Subphylum. Subphylum is a taxonomic rank that is more specific than a phylum but less specific than a class. . Hence D is the correct option.

  • Question 4/5
    1 / -0.33
    Which of the following kingdoms includes organisms that are photosynthetic and have cell walls composed of cellulose?
    Solutions

    Plantae. Plants are photosynthetic organisms that have cell walls composed of cellulose. They are classified in the kingdom Plantae. . Hence B is the correct option.

  • Question 5/5
    1 / -0.33
    Which of the following is a characteristic used to classify organisms in the domain Archaea?
    Solutions

    Absence of peptidoglycan in the cell wall. Archaea are a domain of prokaryotic organisms that are characterized by the absence of peptidoglycan in their cell walls. . Hence D is the correct option.

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