Related Questions

Substances which have permeability less than the permeability of free space are known as
A Ferromagnetic
B Paramagnetic
C Diamagnetic
D Bipolar
The internal pressure coefficient on walls for buildings with large permeability is taken as
A ±0.2
B ±0.5
C ±0.7
D 0
The average coefficient of permeability of natural deposits
A Parallel to stratification is always greater than that perpendicular to stratification
B Parallel to stratification is always less than that perpendicular to stratification
C Is always same in both directions
D Parallel to stratification may or may not be greater than that perpendicular to stratification
Which of the following methods is more suitable for the determination of permeability of clayey soil ?
A constant head method
B falling head method
C horizontal permeability test
D none of the above
________ determines colour, texture, chemical properties, mineral content and permeability of soil.
A Flora & Fauna
B Time
C Climate
D Parent rock
The scales form in heat exchanges after a period of operation and provide additional resistance to heat transfer with some heat transfer coefficient . The reciprocal of this scale heat transfer coefficient is called .
A scaling factor
B forming factor
C resisting factor
D fouling factor
For a shoe brake, the equivalent coefficient of friction is equal to (where $$\mu $$ = Actual coefficient of friction and $$\theta $$ = Semi-block angle)
A $$\frac{{2\mu \sin \theta }}{{\theta + \sin \theta }}$$
B $$\frac{{\mu \sin \theta }}{{2\theta + \sin 2\theta }}$$
C $$\frac{{4\mu \sin \theta }}{{\theta + \sin \theta }}$$
D $$\frac{{4\mu \sin \theta }}{{2\theta + \sin 2\theta }}$$
The value of coefficient of discharge is __________ the value of coefficient of velocity.
A Less than
B Same as
C More than
D None of these
The following mediators increase capillary permeability in acute inflammation
A Histamine
B Bradykinin
C Prostacyclin
D Platelet Derived Growth Factor (PDG
E Angiotensin
Capillary permeability is increased by
A Histamine
B Viral infection
C Burn
D Vitamin C excess
E Prolonged ischemia

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