General Science · NDA previous year questions

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2016 16 questions

Q672016 · 18 Sept 2016
A person is unable to read a newspaper without his glasses. He is most probably suffering from
1. A.myopia
2. B.presbyopia
3. C.astigmatism
4. D.hypermetropia
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Answer: B
Q802016 · 18 Sept 2016
When one strikes a safety match, the first step is
1. A.burning of sulfur
2. B.decomposition of potassium chlorate into potassium chloride and oxygen
3. C.conversion of a small amount of red phosphorus into white phosphorus
4. D.burning of glue and starch
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Answer: C
Q832016 · 18 Sept 2016
Combination of one volume of nitrogen with three volumes of hydrogen produces
1. A.one volume of ammonia
2. B.two volumes of ammonia
3. C.three volumes of ammonia
4. D.one and a half volumes of ammonia
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Answer: B
Q852016 · 18 Sept 2016
Emulsion is known as a
1. A.colloidal solution of substances having different physical states
2. B.true solution
3. C.distillation mixture for making alcohols
4. D.colloidal solution of two liquids
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Answer: D
Q972016 · 18 Sept 2016
Passage
The following 6 (Six) items consist of two statements, Statement I and Statement II. Examine these two statements carefully and select the correct answer using the code given below : Code : Statement I : Ozone is a tri-atomic molecule of oxygen.
Statement II : Ozone is concentrated mainly in stratosphere.
1. A.Both the statements are individually true and Statement II is the correct explanation of Statement I
2. B.Both the statements are individually true but Statement II is not the correct explanation of Statement I
3. C.Statement I is true but Statement II is false
4. D.Statement I is false but Statement II is true
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Answer: B
Q1002016 · 18 Sept 2016
With reference to biodiversity, which of the following statements is/are correct? 1. Species richness and high degree of endemism are important criteria for identifying biodiversity hot spots. 2. Species diversity is highest in the tropics and decreases down the poles. 3. Biodiversity conservation may be in situ as well as ex situ. Select the correct answer using the code given below :
1. A.1 only
2. B.2 and 3 only
3. C.1, 2 and 3
4. D.1 and 3 only
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Answer: C
Q532016 · 17 Apr 2016
A man weighing 70 kg is coming down in a lift. If the cable of the lift breaks suddenly, the weight of the man would become
1. A.70 kg
2. B.35 kg
3. C.140 kg
4. D.Zero
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Answer: D
Q622016 · 17 Apr 2016
A container is first filled with water and then the entire water is replaced by mercury. Mercury has a density of $13.6 \times 1 0^{3} kg/ m^{3}$ . If X is the weight of the water and Y is the weight of the mercury, then
1. A. $X = Y$
2. B. $X = 13.6 Y$
3. C. $Y = 13.6 X$
4. D.None of the above
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Answer: C
Q762016 · 17 Apr 2016
A glass vessel is filled with water to the rim and a lid is fixed to it tightly. Then it is left inside a freezer for hours. What is expected to happen ?
1. A.The water freezes to ice and the level of ice comes down
2. B.The water in the glass vessel simply freezes to ice
3. C.The glass vessel breaks due to expansion as water freezes to ice
4. D.The water does not freeze at all
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Answer: C
Q832016 · 17 Apr 2016
Density of water is
1. A.maximum at 0°C
2. B.minimum at 0°C
3. C.maximum at 4°C
4. D.minimum at –4°C
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Answer: C
Q842016 · 17 Apr 2016
The phosphorus used in the manufacture of safety matches is
1. A.Red phosphorus
2. B.Black phosphorus
3. C.White phosphorus
4. D.Scarlet phosphorus
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Answer: A
Q882016 · 17 Apr 2016
What is the number of mole(s) of $H_{2} (g)$ required to saturate one mole benzene?
1. A.1
2. B.2
3. C.3
4. D.4
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Answer: C
Q912016 · 17 Apr 2016
Consider the following statements : 1. All Echinoderms are not marine. 2. Sponges are exclusively marine. 3. Insects are found in all kinds of habitats. 4. Many primates are arboreal. Which of the statements given above is/are correct ?
1. A.1, 3 and 4 only
2. B.3 and 4 only
3. C.2 and 4 only
4. D.3 only
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Answer: B
Q932016 · 17 Apr 2016
Which of the following statements are correct ? In honey bees 1. Males are haploid. 2. Workers are sterile and diploid. 3. Queen develops from diploid larvae that fed on royal jelly. 4. Honey is collected/made by males. Select the correct answer using the code given below :
1. A.1, 2, 3 and 4
2. B.2 and 3 only
3. C.1, 2 and 3 only
4. D.1 and 4 only
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Answer: C
Q962016 · 17 Apr 2016
Which of the following substances are harmful for health if present in food items? 1. Pesticide residues 2. Lead 3. Metanil yellow 4. Mercury Select the correct answer using the code given below:
1. A.1 and 2 only
2. B.1, 2 and 4 only
3. C.3 and 4 only
4. D.1, 2, 3 and 4
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Answer: D
Q972016 · 17 Apr 2016
Which of the commonly used household item(s) release Bisphenol A (BPA) which is an endocrine disruptor and bad for human health? 1. Steel utensils 2. Plastic coffee mugs 3. Aluminium utensils 4. Plastic water storage bottles Select the correct answer using the code given below:
1. A.1 only
2. B.1 and 2 only
3. C.2 and 4 only
4. D.1, 2 and 3 only
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Answer: C