Home
PDF Store
Exams
G.K.
Aptitude
Reasoning
English
Computer
Biology
Privacy
About
Contact
Home
All MCQ
Exams
PDF Store
G.K.
Aptitude
Reasoning
English
Computer
Biology
Privacy
About
Contact
What is the correct answer?
4
A semi-conductor is damaged & behaves like a conductor, on passing a strong electric current through it, because it heats up the crystals & breaks the covalent bonds resulting in __________ electrons.
A.
Lack of free
B.
Excess of
C.
Decrease in
D.
None of these
Correct Answer :
B. Excess of
Related Questions
Electrostatic separation of minerals from each other is based on their…
Identify the false statement
__________ has a negative co-efficient of linear expansion.
Air standard Otto cycle is more efficient than the diesel cycle for the…
If a nuclear reactor produces more fissile nuclear fuel than it consumes,…
Volumetric composition of flue gas analysed with the Orsat apparatus is…
Pick out the wrong statement.
Nickel is a __________ material.
__________ property of steel increases by addition of large amount of…
What happens, when SO2 is passed through a solution of H2S in water?
Annealing of cast iron
Between 230 and 370°C, blue brittleness is caused in mild steel because…
The most suitable material of construction for a sewer to carry sewage…
Square steel key is normally strong in failure by shear & crushing. Keys…
Maximum change in the hardness of martensite occurs in the carbon content…
'Ice point' is designated on Fahrenheit temperature scale by
Sand used to stop the green sand from sticking to the pattern is termed…
Which of the following is prone to cup and cone fracture?
Dislocations are __________ defects.
Alloying elements present in Haynes stellite, which has superior performance…
L.D. (Linz-Donawitz) converter is used in the production of
When dry bulb temperature & wet bulb temperature of moist air is the same,…
The most prominent single cause of corrosion in boiler-tubes, drums, economisers…
Catalyst used in the 'catalytic converter' employed in automobile exhaust…
X-rays are
Fire in fuel gas pipelines is extinguished most effectively by
Angular displacement can be measured suitably by a
__________ remains constant during the adiabatic cooling of moist air.
The main constituent of bones is
Tip of the match stick contains a mixture of
Also checkout
Decision Making MCQ
Synonyms MCQ
Rearrangement Set 5 MCQ
Relationship based problems MCQ
Cause & Effect MCQ
Metallurgical Operations MCQ
Chemical Engineering Thermodynamics MCQ
Tumors of the testes MCQ
Astronomy MCQ
Pteridophyta MCQ
Compound Interest MCQ
Digital Electronics MCQ