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341.

Pressure drag results from

A.	Skin friction	B.	Deformation drag
C.	Development of a stagnation point	D.	Occurrence of a wake

342.

Concentrated solution of sugar is a

A.	Dilatant fluid	B.	Pseudo plastic fluid
C.	Newtonian fluid	D.	Ideal fluid
E.	None of the above

343.

In case the adhesion between moleules of a fluid is greater than cohesion between fluid and the glass, then the free level of the fluid in glass tube dipped in the glass vessel will be

A.	Same as the surface of the fluid	B.	Lower than the surface of the fluid
C.	Higher than the surface of the fluid	D.	Dependent on atmospheric pressure
E.	Dependent on atmospheric temperature

344.

A low pressure of the order of 10-10 torr is to be measured in a chamber. Which of the following device can be used for this?

A.	Manometer	B.	Bourdon vacuum gauge
C.	Pirani gauge	D.	Ionisation chamber
E.	McLeod gauge

345.

Which of the following principle is used in the operation of Mc Leod gauge?

A.	Charles law	B.	Boyles law
C.	Daltons law	D.	Pascals law
E.	None of the above

346.

The speed of a submariue can be measured by

A.	Pitot tube	B.	Hot wire anemometer
C.	Pirani gauge	D.	Inclined manometer
E.	Any of the above

347.

The thickness of laminar boundary layer at a distance x from the leading edge over a flat plate varies as

A.	x	B.	x2
C.	x1/2	D.	x4/5
E.	x3/5

348.

The thickness of turbulent boundary layer at a distance x from the leading edge over a flat plate varies as

A.	x4/5	B.	x5/4
C.	x3/5	D.	x5/3
E.	x1/2

349.

Which of the following gauge can be used for the measurement of velocity of an aircraft?

A.	Pilot tube	B.	Ionization chamber
C.	Venturimeter	D.	Hot wire anemometer
E.	Inclined manometer

350.

The flow in venturi flume takes place at

A.	Atmospheric pressure	B.	Vacuum
C.	High pressure	D.	Varying pressure
E.	None of the above