General Science MCQ Questions and Answers for competitive exams

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General Science MCQ Questions and Answers for competitive exams UPSC IAS Prelims, SSC CGL, CHSL,UGC NET, bank exams , Entrance exams test Online Quiz practice Questions Practice

General Science gk Questions and Answers

2326.
Two strands of DNA are held together by -

a
covalent bonds
b
hydrogen bonds
c
electrostatic force
d
van der Waals' forces

2327.
Earth's seasons are caused by which of the following?

a
The tilt of the earth's rotation relative to the ecliptic as earth revolves around the sun
b
The varying amount of sunspot activity
c
The earth's orbit around the sun as an exlipse rather than a circ
d
The rotation of during a 24-hour day

2328.
Paper is manufactured by

a
Wood, calcium, hydrogen sulphite and resin
b
Wood and resin
c
Wood, sodium and bleaching powder
d
Wood and bleaching powder

2329.
Yeast, used in making bread is a

a
fungus
b
plant
c
bacteria
d
seed

2330.
In the context of alternative sources of energy, ethanol as a viable bio-fuel can be obtained from-

a
Potato
b
Rice
c
Sugarcane
d
Wheat

2331.
is the longest cell.

a
Nerve cell
b
Spleen
c
Skin
d
None of the above

2332.
Which of the following are the ingredients of gun metal?

a
Iron, Brass, Tin
b
Iron, tin
c
Copper, Tin
d
Iron, Zinc, Titanium

2333.
Among the following animals, choose the one having three pairs of legs.

a
Bug
b
Mite
c
Spider
d
Scorpion

2334.
Superconductivity is a material property associated with

a
cooling a substance without a phase change
b
frictionless liquid flow
c
a loss of thermal resistance
d
a loss of electrical resistance

2335.
Which radioactive pollutant has recently drawn to public, due to its occurrence in the building material?

a
Thorium
b
Radium
c
Plutonium
d
Radan

2336.
A super conductor is characterised by

a
Low permeability
b
Infinite permeability
c
Zero permeability
d
High permeability

2337.
Rain drops are spherical due to

a
Viscosity of water
b
Surface tension
c
Air friction
d
Continuous evaporation

2338.
The gas usually filled in the electric bulb is

a
nitrogen
b
carbon dioxide
c
hydrogen
d
oxygen

2339.
Study of system of animal body which protect it from infection of various desease is called

a
Hemology
b
Immunology
c
Microbiology
d
Pathology

2340.
Water flows through a horizontal pipe at a constant volumetric rate. At a location where the cross sectional area decreases, the velocity of the fluid

a
increases
b
decreases
c
stays the same
d
none of the above

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