#1
April 18th, 2015, 11:04 AM
| |||
| |||
BARC Work Assistants Exam Question Paper
I am appearing for BARC examination. so kindly provide me with the question paper for this examination.
|
#2
April 18th, 2015, 05:25 PM
| |||
| |||
Re: BARC Work Assistants Exam Question Paper
Hello user In response of your question here I am providing you with the question paper for this examination: Sample Question Paper BARC Work Assistants Exam Examination Maximum Marks: 85 Time: 90 minutes Physics : 1) Which instrument is used to measure pressure (a) Saccharimeter (b) Ammeter (c) Manometer (d) Lactometer 2) What does Angstrom measure (a) Quantity of liquid (b) Length of light waves (c) Length of cables (d) Speed of ships 3) Light year is related to (a) Energy (b) Intensity (c) Distance (d) Speed 4) The unit of current is (a) Ohm (b) Watt (c) Ampere (d) None of these 5) The intensity of an earthquake is measured with a (a) Barometer (b) Hydrometer (c) Polygraph (d) Seismograph 6) The Scientist who first discovered that the earth revolves around the sun was (a) Newton (b) Dalton (c) Copernicus (d) Einstein 7) Meteorology is the science of (a) Weather (b) Meteors (c) Metals (d) Earthquakes 8) The velocity of light was first measured by (a) Einstein (b) Newton (c) Romer (d) Galileo 9) The unit of energy in MKS system is (a) Volt (b) Erg (c) Ohm (d) Joule 10) Centigrade & Fahrenheit scales give same reading at (a) -400o (b) -32o (c) -273o (d) -100o Chemistry 11) Which of the following is not an atmospheric pollutant (a) Hydrocarbons (b) CFCs (c) CO2 (d) CO 12) Which element has the highest first ionization energy? A. Sodium B. Aluminum C. Calcium D. Phosphorus 13) When alpha particles are used to bombard gold foil, most of the alpha particles pass through undeflected. This result indicates that most of the volume of a gold atom consists of ____. A. deuterons B. neutrons C. protons D. unoccupied space 14) A neutron has approximately the same mass as a A. an alpha particle B. a beta particle C. an electron D. a proton 15) What is the mass number of an atom which contains 28 protons, 28 electrons, and 34 neutrons? A. 28 B. 56 C. 62 D. 90 16) Which element is present in all organic compounds? A. carbon B. nitrogen C. oxygen D. phosphorous 17) Which statement explains why the element carbon forms so many compounds? A. Carbon atoms combine readily with oxygen. B. Carbon atoms have very high electronegativity. C. Carbon readily forms ionic bonds with other carbon atoms. D. Carbon readily forms covalent bonds with other carbon atoms. 18) What is the maximum number of covalent bonds than an atom of carbon can form? A. 1 B. 2 C. 3 D. 4 19) During fractional distillation, hydrocarbons are separated according to their A. boiling points B. melting points C. triple points D. saturation points 20) Which substance cannot be decomposed into simpler substances? A. ammonia B. aluminum C. methane D. methanol 21) Which statement describes a chemical property? A. Its crystals are a metallic gray. B. It dissolves in alcohol. C. It forms a violet-colored gas. D. It reacts with hydrogen to form a gas. 22) How many valence electrons does an oxygen atom have? A. 2 B. 6 C. 8 D. 16 23) The identity of an element is determined by… A. The number of its protons. B. The number of its neutrons. C. The number of its electrons. D. Its atomic mass. 24) Which of the following is the correct name for NaHCO3? A. sodium hydrogen carbonate B. sodium acetate C. nitrogen hydrogen carbonate D. sodium hydrogen carbon trioxide 26) What is the oxidation number of chromium in the ionic compound Na2Cr2O7? A. 2 B. 6 C. 7 D. 12 27) The nucleus of an atom consists of A. electrons and neutrons B. electrons and protons C. protons and neutrons D. All of the above 28) What is the molecular geometry for ammonia (NH3)? A. saw horse B. trigonal planar C. tetrahedral D. pyramidal 29) What is the hybridization of the sulfur atom is SF4? A. sp2 B. sp3 C. sp3d D. sp3d2 30) The number of moles of solute present in 1 kg of a solvent is called its A. molality B. molarity C. normality Thank you.. visit again |
|