Question31:-Crude petroleum consists of carbon and hydrogen composition
4:84 - 87% carbon and 11 - 14% hydrogen
8:22 -14% carbon and 84 - 87% hydrogen
೦-54% carbon and 25% hydrogen
0:-70- 72% carbon and 5 - 7% hydrogen
Correct Answer:- ೦೧000
Question32:-Polymerisation of petroleum products leads to
‘A Causes olefins to combine with each other
B:-Produce i-octane from cracked gases containing n-butane and i-butane
C-Causes aromatics to combine with each other
D:-Produce lubricating oil
Correct Answer:- ೦೧000
Question33:-The measure of aromatic content in diesel ‏وأ‎ known as
‘AOctane number
B:-Pour point
‏وھ ای‎ point
D-Aniline point
Correct Answer:- Option-D
Question34:-The average calorific value of Anthracite coal will be in the range
ക - 8670 kcal/kg
B:-10250 - 14350 kcal/kg
C5640 - 7250 keallkg
5940 - 8250 ‏وہای‎
‎Correct Answer:- ೦೧000
Question35:-The ultimate analysis of a coal sample is as follows

Carbon : 72%; Hydrogen : 5%; Oxygen : 5.9%; Nitrogen : 15:
to produce 00, , #1,0 and 50, respectively.

A 31624 kg
B:-2.31624 kg
‏کی‎ 32624 kg
0:3.32624 kg

Correct Answer: 8

; Ash : 896. Calculate the total oxygen required for burning of carbon, hydrogen and sulphur

‘Question36:-Solar refrigeration can be accomplished using either source supplied from a solar collector or ‘supplied from photovoltaics.

AvThermal energy and electricity
Bright energy and electricity

Radiation energy and electricity

D:-Vapour compression energy and electricity

Correct Answer: Option:

‘Question37::Which of the following compounds 15 added in LPG to impart distinct colour 7

ಸಿಸಿ! nitrate
B:-Ethyl mercaptan
(7೬೭7೨ ethyl lead
D:-Phenol
Correct Answer: Option ®
Question38:-The purpose of refractory lined chamber in furnace is
‏وات‎ enhance the heat energy by radiation
‏7۵ھ‎ enhance the flame from fuel
பரம enhance the gas and vapour flow rate
Do absorb the excess heat

Correct Answer: Option: