In simple harmonic motion the acceleration is proportional to
A.Displacement
B.Linear velocity
C.Angular velocity
D.Rate of change of angular velocity
E.None of the above
Author: BILAL KHATTAK
All gases have approximately the same compressibility factor at the same
A.temperature and pressure
B.critical temperature and critical pressure
C.reduced temperature and reduced pressure
What percentage of earth area does water occupy?
A.90%
B.80%
C.75%
D.65%
E.70%
A short tube mouthpiece will not run full at its outlet if the head under which the orifice work is
A.Less than 5 m of water
B.More than 12.5 m of water
C.Less than 10 m of water
D.Between 5 and 10 m of water
E.Less than 3 m of water
Frog’s food, as compared to mammalian foodm has only which of these:
A.Polysaccharides
B.Nitrogen polysaccharides
C.Both (a) & (b)
D.None of these
Two shafts have their axes not in the same straight line. Also their axes are not parallel but intersecting. Which of the following coupling can be used for these shafts?
A.Flexible coupling
B.Universal coupling
C.Oldham’s coupling
D.Rigid coupling
E.Any of the above
The process of reheating hardened steel to temperature below the lower critical temperature followed by any desired rate of cooling, is known as
A.Hardening
B.Spheroidizing
C.Tempering
D.Annealing
E.Normalizing
Forced vibrations
A.Are preceded by free vibrations
B.Are followed by free vibrations
C.Have a frequency more than the natural frequency
D.Are independent of natural frequency
E.None of the above
Which of the following horizons is generally referred to as the illuvial zone??
A.Horizon-B
B.Horizon-A
C.Horizon-O
D.Horizon-C
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B.Horizon-A
C.Horizon-O
D.Horizon-C
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Importance of trees are:
A.One of the most precious gifts of God to mankind
B.When planted over large areas, they constitute a valuable resource
C.A resource much superior to other bounties and blessing because not only it is renewable but also it is multipurpose one
D.All of the above
