CS/B.Tech/TT/APM/SEM-8/TT-801/2013
2013
ENERGY SCIENCE
Time Allotted : 3 Hours Full Marks : 70
The figures in the margin indicate full marks.
Candidates are required to give their answers in their own words
as far as practicable.
GROUP – A
( Objective Choice Type Questions )
1. Answer the following questions. 10X1 = 10
A) Choose the correct alternatives for the following :
i) The value of solar constant is
a) 3750 watt / m 2
b) 1353 watt / m 2
c) 6·62 10 –27 erg-sec
d) none of these.
ii) Albedo is an effect related to
a) Atmospheric diffusion of heat
b) Atmospheric absorption of heat
c) Earth's emission of incident sun's energy
d) None of these.
iii) 'Barn' is an unit used for
a) measuring radioactivity
b) measuring radioactive decay
c) measuring microscopic nuclear cross-section
d) measuring wind power density.
iv) Octane number is associated with
a) Diesel fuel