2023 2024 EduVark > Education Discussion > Career and Jobs


  #2  
April 18th, 2015, 05:25 PM
Super Moderator
 
Join Date: Mar 2012
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


Quick Reply
Your Username: Click here to log in

Message:
Options



All times are GMT +5. The time now is 06:43 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.6.0

1 2 3 4 5 6 7 8