University Assistant previous questions General Science

General Science through 30 Previous year questions

Which of the following units is usually used to denote intensity of pollution?
a)Milligrams
b)Nanograms
c)Parts per million…..
d)Kilogram

Pressure –pascal
Electric charge –coloumb
Electric current –Ampere
Resistance-Ohm
Sound-Decibel
Capacitance- Farad
Luminous intensity-candela
Magnetic Flux density- Tesla

Nitrogen fixing bacteria lives in the root tumoursof pea plants is called
a)Rhizome
b)Rhizobium…
c)E coli
d)Streptococcus

E-Coli –Coliform bacteria

Which phenomenon of light is behind the rainbow?
a)Diffraction
b)Scattering
c)Dispersion….
d)Radiation

Which is the hardest material ever known in the Universe?
a)Platinum
b)Graphite
c)Diamond …..
d)Marble
Little silver – Platinum
White gold- Platinum
Marble –calcium carbonate

Which instrument regulates the resistance or current in a circuit?
a)Volta cell
b)Rheostat……
c)Generator
d)Sonometer
Sonometer?
Generator?

The scientist who formulated the “Germ theory of disease” is;
a)Louis Pasteur….
b)Lamark
c)Hugo Devris
d)GrigerMendel

Anthrax vaccine –Louis pasteuar
AnitRabies vaccine?
Colera vaccine?
Theory of Inheritance?
Mutation theory-Hugo Devris

In which atmospheric level ozone gas is seen?
a)Mesosphere
b)Lithosphere
c)Stratosphere….
d)Ionosphere
Lowest layer –Troposphere ( dust particles, water vapour, clouds, rain,snow,windand storms)
Stratosphere –ozonosphere?
Ozone day –Sep 16
Thermo sphere-
lower part –ionosphere ( radio )
upper –exosphere

Which is the relay centre in our brain?
a)Pituitary gland
b)Thalamus…
c)Spinal cord
d)Meninges

Thalamus: sensory information( pain,temperature,pressureand touch)
Membrane which cover brain?
Reflex actions controlled by?
Master gland?
Methane gas is invented by the scientist;
a)Alexandra Volta….
b)Alexander Fleming
c)John Dalton
d)Thomas AlwaEdison
Marsh gas
JhonDalton –Atom theory
Fleming-Penicillin
Edison-Bulb
In which day ‘ Mangalyaan’ was launched from Sriharikkotta?
a)5 November 2012
b)5 November 2013….
c)24 January 2014
d)24 September 2014
Which lamp has the highest Energy Efficiency?
a)Incandescent Lamp
b)LED Lamp…..
c)CFL
d)Arc Lamp
LED-Light Emitting Diode(Oleg losen1927)
CFL-discharge lamp
Arc lamps-coal mines
Yellow is the combination of ………… primary colours
a)Blue,Green
b)Red,Blue
c)Red,Green…..
d)Red Blue, Green
Primary colours?
G+R= Yellow
B+R= magenta
G+B=Cyan
G+B+R= White
Diverging lens produces ——-type of images
a)Small virtual image…
b)Big real image
c)Small real image
d)Big virtual image
Convex lens= real and inverted
Concave –virtual and erect
Power of lens measured in?
Lens in human eye is?
In microscope?telescope?
Solar cooker?
Project lamp?
Shaving mirrors?
Car head light bulb?
The process used to produce Ammonia is…..
a)Contact process
b)Haber Process……..
c)Chlor-Alkali Process
d)Creighton process

Contact process?
Bessemer –steel
Ostwald –nitric acid
Hall Heroult–Aluminium
Bosch –Hydrogen
Dow –Mg
Down’s -Na

The non metal which exists in liquid state at room temperature is:
a)Mercury
b)Sodium
c)Pottassium
d)Bromine ……
Quick silver?
Metal with lowest melting point?
Liquid metal at room temperature?

The 5thState of matter is
a)Plasma
b)Magma
c)Bose-Einstein condensate…..
d)Fermioniccondensate

 7 states of matter

1.Solid
2.Liquid
3.Gas
4.Plasma
5.BosEinstein Condensate(zerothstate)
6.Fermioniccondensate
7.Quark gluon plasma

Which is not as essential constituents of all atoms?
a)Electrons
b)Protons
c)Neutrons
d)Positrons….
“Atom” –invisible

The distance of stars from earth is expressed generally in terms of;
a)Metre
b)Kilometer
c)Astronomical unit
d)Light year …..

Distance between Sun and earth is measured by?
-Astronomical Unit
High boiling point of water is due to
a)Weak dissociation of water molecules
b)High dissociation of water molecules
c)Hydrogen bonding amongst water molecules…..
d)Vander waalsforces of attraction amongst the molecule

Boiling point of water?
In pressure cooker?
The temperature at which water has least volume and high density ?

In an electrochemical cell, there is the conversion of;
a)Electrical energy to chemical energy
b)Chemical energy to electrical energy
c)Chemical energy to heat energy
d)mechanical energy to heat energy

Wood charcoal is used in gas masks because
a)It is poisonous
b)It liquefies gas
c)It is porous
d)It absorbs gases…..

The disease caused by a protozoan
a)AIDS
b)Malaria….
c)Chicken Guniya
d)Typhoid

A protein solution on warming with concentrated nitric acid may turn yellow called;
a)Xanthoproteictest….
b)Biuret test
c)Millions test
d)Hopkins coletest

Bieurettest : to detect the presence of peptide bonds
Millions test : presence of proteins
Hopkins –coletest : presence of amino acid tryptophan

The same group of elements are characterized by;
a)Ionization potential
b)Electronegativity
c)Ionization energy
d)No of electrons in the outermost shell….

Father of periodic table : Dimitri Mendelev
On the basic of Atomic mass
Father of modern periodic table : Mosley( atomic number)
First element ?

Acetyl salicyclicacid is known as ;
a)Oil of wintergreen
b)Salol
c)Aspirin…..
d)Pioricacid
Oil of wintergreen :: Methyl Salicylate

Salot-Phenyl salicylate
Pioricacid-TNP( 2,4,6 tripheno)

Who among the following was the first winner of Nobel prize in Physics?
a)S Chandrasekharan
b)C V Raman….
c)V Ramakrishnan
d)HargovindKhorane

Nobel prize
Instituted in 1901
December 10th
City : Stockholm( except peace)
Peace prize –Oslo
First Indian : RabindraNathTagore91913)
C V Raman : 1930
Raman effect: 1928 Feb 28
National Science day : Feb 28

Over production of which hormone lead to exophthalmic goiter?
a)Iodine
b)Insulin
c)Thyroxine…
d)ADH

Largest endocrine gland –Thyroid gland
Thyroxine& calcitonin
Under production of thyroxine–Hypothyroidism
Defeciencyof Thyroxinein adults –Myxedema
Defeciencyof Thyroxinein children -Cretinism

A liquid having pH value more than 7 is;
a)Citric acid
b)Lime water…
c)Soda water
d)Vinagiri

Lime water-slaked lime in calcium hydroxide
pH scale : Sorenson
pH-‘Potential of Hydrogen’
Water –7 (neutral)
Acids -less than 7
Base-greater than 7
Coffee -5
Tea –5.5
Milk -6.5
Human blood -7.3
Saliva-6.5 to 7.4
Urine –4.5 –8
Beer -4.5
Lemon water –2.4
Vinegar -2.9
Human stomach-3.5
Tomato -4.2 –4.4
Sea water –7.36 –8.21
Baking soda -8

Which among the following is not correctly paired?
a)Dynamo-Alfred Nobel….
b)Television –J L Baird
c)Computer-Charles Babbage
d)DDT –Pole Muller
Dynamo-Michel Farady
Dynamite –Alfred Nobel
C T Scan –Godfrey Housefield
MRI Scan –Raymond V Dandian
Barometer-Torricelli
Telescope –Galileo
Fax-Alexander Brain

The instrument used to measure the growth of plant is;
a)Durometer
b)Auxanometer…
c)Potometer
d)Cryometer

Auxanometer: VJ Konigsberger
Crescograph-J C Bose
Durometer–hardness of a material
-Albert Ferdinand Shore
Potometer–rate of water uptake of a leafy plant shoot
Cryometer–very low temperature of objects