# Surface tension

1.  Acts in the plane of interface normal to any line in the surface

2.  Is also known as capillarity

3.  Is a function of the curvature of the interface

4.  Decreases with fall in temperature

4

Decreases with fall in temperature

Explanation :
No Explanation available for this question

# Viscosity of water in comparison to mercury is

1.  Higher

2.  Lower

3.  Same

4.  Unpredictable

4

Lower

Explanation :
No Explanation available for this question

# The pressure in meters of oil (specific gravity 0.85)equivalent to 42.5 of water is

1.  42.5m

2.  50m

3.  52.5m

4.  85m

4

50m

Explanation :
No Explanation available for this question

# The line traced by a single fluid particle as it moves over a period of time is called

1.  Lines of force

2.  Filament line

3.  Flow line

4.  Path line

4

Path line

Explanation :
No Explanation available for this question

# A low pressure of the order of 10-10 torr can be measured in a chamber with

1.  Manometer

2.  Bourdon vacuum gauge

3.  Pirani gauge

4.  Ionization chamber

4

Manometer

Explanation :
No Explanation available for this question

# What pressure, in MPa, must be maintained in a diving dell, at a depth of 1200m, to keep out the ocean water(S=1.03)

1.  1.24

2.  5.16

3.  9.32

4.  12.1

4

12.1

Explanation :
No Explanation available for this question

# Pressure force on the 15 cm dia head light of an automobile travelling at 0.25 m/s is

1.  10.4N

2.  6.8 N

3.  4.8N

4.  3.2N

4

6.8 N

Explanation :
No Explanation available for this question

# Viscosity of a fluid with specific gravity 1.3 is measured to be 0.0034Ns/m2. Its kinematic viscosity, inm2/s, is

1.  2.6*10-6

2.  4.4* 10-6

3.  5.8*10-6

4.  7.2*10-6

4

2.6*10-6

Explanation :
No Explanation available for this question

# A type of flow in which the fluid particles while moving in the direction of flow rotate about their mass centre, is called

2.  Uniform flow

3.  Laminar flow

4.  Rotational flow

4

Rotational flow

Explanation :
No Explanation available for this question

# If pressure at any point in the liquid approaches the vapour pressure, liquid starts vaporizing and creates pockets or bubbles of dissolved gases and vapours. This phenomenon is

1.  Surface tension

3.  Vaporization

4.  Cavitations

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