Subject

General Knowledge

Class

NDA Class 12

Pre Boards

Practice to excel and get familiar with the paper pattern and the type of questions. Check you answers with answer keys provided.

Sample Papers

Download the PDF Sample Papers Free for off line practice and view the Solutions online.
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 Multiple Choice QuestionsMultiple Choice Questions

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1.

Statement I and Statement II. You are to examine these two statements carefully and select the answers to these items using the code given below :

Statement I: Growth of plants is smooth with a complete fertilizer.

Statement II: A complete fertilizer always contains N, P,K.

 

  • Both the statements are individually true and Statement II is the correct explanation of Statement I.

  • Both the statements are individually true but Statement II is not the correct explanation of Statement I

  • Statement I is true but Statement II is false

  • Statement I is false but Statement II is true


2.

Statement I and Statement II. You are to examine these two statements carefully and select the answers to these items using the code given below :

Statement I: The granules of modern gunpowder (also called black powder) are typically coated with Graphite.

Statement II: Graphite prevents the build-up of electrostatic charge.

  • Both the statements are individually true and Statement II is the correct explanation of Statement I.

  • Both the statements are individually true but Statement II is not the correct explanation of Statement I

  • Statement I is true but Statement II is false

  • Statement I is false but Statement II is true


3.

Statement I and Statement II. You are to examine these two statements carefully and select the answers to these items using the code given below :

Statement I: Colour of nitroge, dioxide changes to colourless at low temperature.

Statement II: At low temperature Nitrogen tctroxide (N2O4) is formed which is colourless.

  • Both the statements are individually true and Statement II is the correct explanation of Statement I.

  • Both the statements are individually true but Statement II is not the correct explanation of Statement I

  • Statement I is true but Statement II is false

  • Statement I is false but Statement II is true


4.

Statement I and Statement II. You are to examine these two statements carefully and select the answers to these items using the code given below :

Statement I: Diamond is very bright.

Statement II: Diamond has very low refractive index.

  • Both the statements are individually true and Statement II is the correct explanation of Statement I.

  • Both the statements are individually true but Statement II is not the correct explanation of Statement I

  • Statement I is true but Statement II is false

  • Statement I is false but Statement II is true


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5.

Statement I and Statement II. You are to examine these two statements carefully and select the answers to these items using the code given below :

Statement I: Oxygen gas is easily produced at a faster rate by heating a mixture of potassium chlorate and manganese dioxide than heating potassium chlorate alone.

Statement II: Manganese dioxide acts as a negative catalyst.

  • Both the statements are individually true and Statement II is the correct explanation of Statement I.

  • Both the statements are individually true but Statement II is not the correct explanation of Statement I

  • Statement I is true but Statement II is false

  • Statement I is false but Statement II is true


6.

Statement I and Statement II. You are to examine these two statements carefully and select the answers to these items using the code given below :

Statement I: A body weighs less on a hill top than on earth's surface even though its mass remains unchanged.

Statement II: The acceleration due to gravity of the earth decreases with height.

  • Both the statements are individually true and Statement II is the correct explanation of Statement I.

  • Both the statements are individually true but Statement II is not the correct explanation of Statement I

  • Statement I is true but Statement II is false

  • Statement I is false but Statement II is true


7.

Statement I and Statement II. You are to examine these two statements carefully and select the answers to these items using the code given below :

Statement I: While putting clothes for drying up, we spread them out.

Statement II: The rate of evaporation increases with an increase in surface area.

  • Both the statements are individually true and Statement II is the correct explanation of Statement I.

  • Both the statements are individually true but Statement II is not the correct explanation of Statement I

  • Statement I is true but Statement II is false

  • Statement I is false but Statement II is true


8.

Statement I and Statement II. You are to examine these two statements carefully and select the answers to these items using the code given below :

Statement I: Due to diffused or irregular reflection of light, a closed room gets light even if no direct sunlight falls inside the room.

Statement II: Irregular reflection, where the reflected rays are not parallel, does not follow the laws ofreflection

  • Both the statements are individually true and Statement II is the correct explanation of Statement I.

  • Both the statements are individually true but Statement II is not the correct explanation of Statement I

  • Statement I is true but Statement II is false

  • Statement I is false but Statement II is true


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9.

Ultrasonic waves of frequency 3 x 105 Hz are passed through a medium where speed of sound is 10 times that in air (Speed of sound in air is 300 m/s). The wavelength of this wave in that medium will be of the order of

  • 1 cm

  • 10 cm

  • 100 cm

  • 0.1 cm


10.

If radius of the earth were to shrink by 1%, its mass remaining the same, g would decrease by nearly

  • 1%

  • 2%

  • 3%

  • 4%


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