A sample of carbon dioxide that undergoes a transformation from s

Subject

General Knowledge

Class

NDA Class 12

Pre Boards

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Sample Papers

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 Multiple Choice QuestionsMultiple Choice Questions

1.

Light waves are

  • electro-mechanical waves

  • electro-magnetic waves

  • electro-optical waves

  • magneto-optical waves


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2.

A sample of carbon dioxide that undergoes a transformation from solid to liquid and then to gas would undergo

  • a change in mass

  • a change in density

  • a change in composition

  • no change in physical properties


B.

a change in density

We know that,

Density = MassVolume

Change in state of a substance doesn't alter mass, composition or physical properties but it involves change in volume which results in change in density.


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3.

Which one of the following pairs of power projects is not correctly matched?

  • Papanasam - Hydropower

  • Neyveli - Hydropower

  • Ukai - Thermal power

  • Rana Pratap Sagar - Hydropower


4.

A particle is moving in a circular path of radius r at a constant speed v. Which one of the following graphs correctly represents its acceleration a?


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5.

Which of the following element combinations will form ionic compounds?

  1. Ca (Z= 20) and Ti (Z = 22)
  2. Si (Z= 14) and Br (Z= 35)
  3. Mg (Z = 12) and Cl (Z = 17)

Select the correct answer using the code given below.

  • 2 only

  • 3 only

  • 2 and 3 only

  • 1, 2 and 3


6.

In the term GIS, 'G' stands for

  • Global

  • Geographic

  • Goodness

  • Geological


7.

A thermodynamic process where no heat is exchanged with the surroundings is

  • isothermal

  • adiabatic

  • isobaric

  • isotropic


8.

A compound X2O3 contains 31.58% oxygen by weight. The atomic mass of X is

  • 34.66 g mo1-1

  • 45.01 g mo1-1

  • 52.00 g mo1-1

  • 104.00 g mo1-1


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9.

Which one of the following is the correct sequence of oil refineries in India in respect of their time of establishment (starting from the earliest)?

  • Barauni - Haldia - Guwahati - Mathura

  • Barauni - Mathura - Guwahati - Haldia

  • Guwahati - Haldia - Mathura - Barauni

  • Guwahati - Barauni - Haldia - Mathura


10.

Which one of the following circuit elements active component?

  • Resistor

  • Transistor

  • Inductor

  • Capacitor


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