# Property of a fluid by which molecules of different kinds of fluids are attracted to each other is called

2.  cohesion

3.  viscosity

4.  compressibility

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Explanation :
No Explanation available for this question

# In the equation of virtual work, following force is neglected

1.  reaction of any smooth surface with which the body is in contact

2.  reaction of a rough surface of a body which rolls on it without slipping

3.  reaction at a point or an axis, fixed in space, around which a body is con-strained to turn

4.  all of the above

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all of the above

Explanation :
No Explanation available for this question

# If a suspended body is struck at the center of percussion, then the pressure on die axis passing through the point of suspension will be

1.  maximum

2.  minimum

3.  zero

4.  infinity

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zero

Explanation :
No Explanation available for this question

# The resultant of the following three couples 20 kg force, 0.5 m arm, negative sense 30 kg force, 1m arm, negative sense 40 kg force, 0.25 m arm, positive sense having arm of 0.5 m will be

1.  20 kg, negative sense

2.  20 kg, positive sense

3.  10 kg, positive sense

4.   10 kg, negative sense

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20 kg, negative sense

Explanation :
No Explanation available for this question

# The specific weight of water is 1000 kg/m

1.  at normal pressure of 760 mm

2.  at 4°C temperature

3.  at mean sea level

4.  all the above

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all the above

Explanation :
No Explanation available for this question

# Specific weight of water in S.I. units is equal to

1.  1000 N/m3

2.  10000 N/m3

3.  9.81 x 103 N/m3

4.  9.81 N/m3

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9.81 x 103 N/m3

Explanation :
No Explanation available for this question

# When the flow parameters at any given instant remain same at every point, then flow is said to be

1.  quasi static

3.  laminar

4.  uniform

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uniform

Explanation :
No Explanation available for this question

# Angle of friction is the

1.  angle between normal reaction and the resultant of normal reaction and the limiting friction

2.  ratio of limiting friction and normal reaction

3.  the ratio of minimum friction force to the friction force acting when the body is just about to move

4.  the ratio of minimum friction force to friction force acting when the body is in motion

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angle between normal reaction and the resultant of normal reaction and the limiting friction

Explanation :
No Explanation available for this question

# The coefficient of friction depends on

1.  area of contact

2.  shape of surfaces

3.  strength of surfaces

4.  nature of surface

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nature of surface

Explanation :
No Explanation available for this question

# Least force required to draw a body up the inclined plane is W sin (plane inclination + friction angle) applied in the direction

1.  along the plane

2.  horizontally

3.  vertically

4.  at an angle equal to the angle of friction to the inclined plane

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