NDA/NA SOLVED PAPER 2015-II (GENERAL KNOWLEDGE)Total Questions: 10061. Which one of the following pairs of properties of typical air masses is correct?List I (Air Mass)List I (Source Region)(a) Maritime EquatorialWarm oceans in the equatorial zone(b) Maritime PolarWarm oceans in the tropical zone(c) Continental TropicalLess warm oceans in the tropical zone(d) Continental PolarMoist oceans in the polar zone(a)(b)(c)(d)Correct Answer: (a)62. The symbol of the element 'Tungsten' is:(a) Ta(b) W(c) TI(d) TcCorrect Answer: (b) W63. In Egypt, ancient mummies can be found to have their arteries intact due to well preserved:(a) mineralized blood(b) fibroblasts fibre(c) elastic fibre(d) brown fatCorrect Answer: (c) elastic fibre64. Which one of the following statements is correct?(a) The image formed by a concave mirror for an object lying at infinity is at the principal focus, highly diminished, real and inverted(b) A ray of light parallel to the principal axis after reflection from a concave mirror appears to diverge from the principal focus of the mirror(c) The focal length of a spherical mirror is double of its radius of curvature(d) A ray of light travelling from a rarer medium to a denser medium bends away from the normalCorrect Answer: (a) The image formed by a concave mirror for an object lying at infinity is at the principal focus, highly diminished, real and inverted65. Which one of the following statements is correct?(a) Rutherford's alpha-particle scattering experiment led to the discovery of electron(b) J.J Thomson suggested that the nucleus of an atom contains protons(c) The atomic number of an element is the same as the number of protons in the nucleus of its atom(d) The mass number of an atom is equal to the number of electrons in its shellsCorrect Answer: (c) The atomic number of an element is the same as the number of protons in the nucleus of its atom66. Which one of the following statements is not correct?(a) Application of lime makes the soil acidic(b) High acidity in soil is typical of humid climate(c) Increasing soil acidity results in declining soil fertility(d) Arid climate is characterized by alkaline soilCorrect Answer: (a) Application of lime makes the soil acidic67. The alkali metals have relatively low melting point. Which one of the following alkali metals is expected to have the highest melting point?(a) Li(b) Na(c) K(d) RbCorrect Answer: (a) Li68. Which one of the following is useful in paper manufacturing industry?(a) Fibrous plants(b) Orchids(c) Non-flowering plants(d) Plants growing in high altitudeCorrect Answer: (a) Fibrous plants69. Which one of the following statements is not correct?(a) In steady flow of a liquid, the velocity of liquid particles reaching at a particular point is the same at all points(b) Steady flow is also called streamlired flow(c) In steady flow, each particle may not follow the same path as taken by a previous particle passing through that point(d) Two streamlines cannot intersect each otherCorrect Answer: (c) In steady flow, each particle may not follow the same path as taken by a previous particle passing through that point70. According to the Geo-scientists, the shape of the earth is:1. round 2. spherical 3. close to that of a sphere 4. an oblate ellipsoidSelect the correct answer using the code given below:(a) 2, 3 and 4(b) 1,2 and 3(c) 1 and 2 only(d) 3 and 4 onlyCorrect Answer: (d) 3 and 4 onlySubmit Quiz« Previous12345678910Next »
