| April 5th, 2018 12:15 PM | |
| vikash | Re: national defence academy sample papers download As you want here I am giving below National Defence Academy Sample Papers on your demand : Question 1: Radiocarbon is produced in the atmosphere as a result of collision between fast neutrons and nitrogen nuclei present in the atmosphere action of ultraviolet light from the sun on atmospheric oxygen action of solar radiations particularly cosmic rays on carbon dioxide present in the atmosphere lightning discharge in atmosphere Answer: 1 Question 2: It is easier to roll a stone up a sloping road than to lift it vertical upwards because work done in rolling is more than in lifting work done in lifting the stone is equal to rolling it work done in both is same but the rate of doing work is less in rolling work done in rolling a stone is less than in lifting it Answer: 4 Question 3: The absorption of ink by blotting paper involves viscosity of ink capillary action phenomenon diffusion of ink through the blotting siphon action Answer: 2 Question 4: Siphon will fail to work if the densities of the liquid in the two vessels are equal the level of the liquid in the two vessels are at the same height both its limbs are of unequal length the temperature of the liquids in the two vessels are the same Answer: 2 Question 5: Large transformers, when used for some time, become very hot and are cooled by circulating oil. The heating of the transformer is due to the heating effect of current alone hysteresis loss alone both the heating effect of current and hysteresis loss intense sunlight at noon Answer: 3 Question 6: Nuclear sizes are expressed in a unit named Fermi angstrom newton tesla Answer: 1 Question 7: Light year is a unit of time distance light intensity of light Answer: 2 Question 8: Mirage is due to unequal heating of different parts of the atmosphere magnetic disturbances in the atmosphere depletion of ozone layer in the atmosphere equal heating of different parts of the atmosphere Answer: 1 Question 9: Light from the Sun reaches us in nearly 2 minutes 4 minutes 8 minutes 16 minutes Answer: 3 Question 10: Stars appears to move from east to west because all stars move from east to west the earth rotates from west to east the earth rotates from east to west the background of the stars moves from west to east Answer: 2 Question 11: Pa (Pascal) is the unit for thrust pressure frequency conductivity Answer: 2 Question 12: Planets do not twinkle because they emit light of a constant intensity their distance from the earth does not change with time they are very far away from the earth resulting in decrease in intensity of light they are nearer to earth and hence we receive a greater amount of light and, therefore minor variations in the intensity are not noticeable Answer: 4 Question 13: The nucleus of an atom consists of electrons and neutrons electrons and protons protons and neutrons All of the above Answer: 3 Question 14: The number of moles of solute present in 1 kg of a solvent is called its molality molarity normality formality Answer: 1 Question 15: The most electronegative element among the following is sodium bromine fluorine oxygen Answer: 3 Question 16: The metal used to recover copper from a solution of copper sulphate is Na Ag Hg Fe Answer: 4 Question 17: The number of d-electrons in Fe2+ (Z = 26) is not equal to that of p-electrons in Ne(Z = 10) s-electrons in Mg(Z = 12) d-electrons in Fe(Z = 26) p-electrons in CI(Z = 17) Answer: 4 Question 18: The metallurgical process in which a metal is obtained in a fused state is called smelting roasting calcinations froth floatation Answer: 1 Question 19: The oldest rocks in the earth’s crust were once molten, and came from deep inside the earth. The molten rock, called magma, spewed out in volcanic eruptions during the earth;s early life and solidified into hard rock’s called granite basalt igneous rocks sedimentary rocks Answer: 3 Question 20: The law which states that the amount of gas dissolved in a liquid is proportional to its partial pressure is Dalton’s law Gay Lussac’s law Henry’s law Raoult’s law Answer: 3 Question 21: Excluding stoppages, the speed of a bus is 54 kmph and including stoppages, it is 45 kmph. For how many minutes does the bus stop per hour? 9 10 12 20 Answer: 2 Question 22: Two trains 140 m and 160 m long run at the speed of 60 km / hr and 40 km / hr respectively in opposite directions on parallel tracks. The time (in seconds) which they take to cross each other, is: 9 6 10 8 Answer: 4 Question 23: Two stations A and B are 110 km apart on a straight line. One train starts from A at 7 a.m. and travels towards B at 20 kmph. Another train starts from B at 8 a.m. and travels towards A at a speed of 25 kmph. At what time will they meet? 9 a.m. 10 a.m. 30 a.m. 11 a.m. Answer: 2 Question 29: All the following are considered eukaryotes except archaea fungi protozoa humans Answer: 1 Question 30: Which of the following organelles contain DNA, divides and possesses some degree of autonomy? Golgi apparatus Ribosome Chloroplast Peroxisomes Answer: 3 |
| April 5th, 2018 12:14 PM | |
| Unregistered | Re: national defence academy sample papers download Hi buddy here I am looking for National Defence Academy Sample Papers so would you plz provide me or tell me from where I can do download ?? |
| June 4th, 2016 09:40 AM | |
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