Answer / chief

( a ) Trivalent impurities

I want to join indaian railway in group A/B/C.How I should prepare myself for written tests?

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Antigen is a substance, which (a) is used as an antidote to poison (b) kills harmful bacteria (c) reduces body temperature (d) encourages the momentum of body?s defence mechanism to act in time

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RRC GROUP D ALLAHABAD 16/10/2011

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A wire of resistance 24 ohms is bent in the form of a circular ring. The effective resistance between the two points on any diameter of the circle is (1) 24 ohms (2) 12 ohms (3) 6 ohms (4) 3 ohms

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Breath control (Pranayam) improves (a) Body co-ordination (b) Yoga (c) Muscle building (d) Intake of Oxygen

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Distortion caused on a telephone line by an adjacent telephone line is called (a) Cross link (b) Cross fire (c) Inductive disturbance (d) Transposition

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When electric current passes through any conductor, then its temperature (1) Increases (2) Decreases (3) Remains same (4) Depends upon conductor

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Two observations for a length are found to be 1.5 cm and 1.50 cm. Then (a) The two are identical (b) The first has greater accuracy (c) The second has greater accuracy (d) Zero in the second has no relevance

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The sum of an even and an odd number is (a) Always even (b) Always odd (c) Sometimes odd and sometimes even (d) None of these

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An object is moving at a steady speed ?v? along a circular path of radius ?r?. The angular acceleration of the object will be (a) vr (b) v/r (c) zero (d) v2/r

1 Answers  

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