Related Questions

The densest of all the atmosphere layers is ----
A troposphere
B stratosphere
C mesosphere
D ionosphere
Insitu theory and drift theory are related to the
A Origin of petroleum oil
B Origin of coal
C Coalification
D Variation of coal quality with depth
During elastic impact, the relative velocity of the two bodies after impact is __________ the relative velocity of the two bodies before impact.
A Equal to
B Equal and opposite to
C Less than
D Greater than
In impulse turbines, when friction is neglected, the relative velocity of steam at outlet tip of the blade is _________ the relative velocity of steam at inlet tip of the blade.
A Equal to
B Less than
C Greater than
D None of these
Relative volatility varies with the concentration of component for an ideal solution. The relative volatity of a binary mixture may be defined as the ratio of vapor pressure of component 'A' to that of component 'B', when
A Only vapor phase follows Raoult's law
B Only liquid phase obeys Dalton's law
C Liquid phase obeys Dalton's law and vapor phase obeys Raoult's law
D Vapor phase obeys Dalton's law and liquid phase obeys Raoult's law
__________ is defined as the geometric mean of the relative rejections and the relative recoveries of two minerals.
A Separation efficiency
B Selectivity index
C Concentration ratio
D None of these
What is the unit of relative density?
A kg\/m
B kg\/m2
C kg\/m3
D It has no unit
Density in the solid state is slightly less than that in its liquid state, in case of
A Carbon dioxide
B Water
C Mercury
D None of these
The density of hydrogen is _____ times the density of air.
A 0.07
B 1.5
C 2.5
D 3.5
Low density polythene as compared to high density polythene is
A Harder
B Tougher
C Chemically inert
D More flexible

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