When a body floating in a liquid is displaced slightly , it oscilllates about

1.  c.g. of body

2.  centre of pressure

3.  centre of buoyancy

4.  meta centre

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4
Correct Answer :

meta centre


Explanation :
No Explanation available for this question

At the centre line of a pipe flowing under pressure where the velocity gradient is zero, the shear stress will be

1.  Minimum

2.  Maximum

3.  Zero

4.  Could be ant value

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4
Correct Answer :

Zero


Explanation :
No Explanation available for this question

Heaviest fluid is

1.  Air

2.  Castor oil

3.  Glycerine

4.  Carbon tetrachloride

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4
Correct Answer :

Carbon tetrachloride


Explanation :
No Explanation available for this question

A control volume refers to

1.  A closed system

2.  A specified mass

3.  An isolated system

4.  A fixed region in space

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4
Correct Answer :

A fixed region in space


Explanation :
No Explanation available for this question

Water flows up a tapered pipe as shown in the figure. What is the magnitude of the deflection h of the differential mercury manometer corresponding to a discharge of 126L/s The friction in the pipe can be completely neglected.

1.  16.28cm

2.  17.28cm

3.  19.28cm

4.  25.28cm

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4
Correct Answer :

19.28cm


Explanation :
No Explanation available for this question

For a guage pressure of A of -10.89kPa, what is the specific gravity of the gauge liquid B in the figure below

1.  1

2.  2

3.  3

4.  None of these

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4
Correct Answer :

1


Explanation :
No Explanation available for this question

The tank shown in the figure below is closed at top and container air at a pressure pA for the manometer reading shown will be

1.   -3.573kPa

2.  -4.573kPa

3.  -6.573kPa

4.  -7.573kPa

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4
Correct Answer :

 -3.573kPa


Explanation :
No Explanation available for this question

What is the pressure different (pM-pN) when the manometer indicates as shown in the figure

1.  38.26kPa

2.  38.69kPa

3.  38.96kPa

4.  38.kPa

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4
Correct Answer :

38.69kPa


Explanation :
No Explanation available for this question

The shear stress at a point in a glycerin mass in motion if the velocity gradient is 0.25 meter per sec/per meter, will be

1.  0.0236kg/m2

2.  0.02036kg/m2

3.  0.0024 kg/m2

4.  None of these

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4
Correct Answer :

0.02036kg/m2


Explanation :
No Explanation available for this question

Glycerin (μ=1.5Pa.sec.and ρ=1260kg/m3)flows at a mean velocity of a 5m/sec in a 10 cm diameter pipe. The power expended by the flow in a distance of 12m, will be

1.  1.8H.P

2.  1.85H.P

3.  18.5H.P

4.  185H.P

View Answer  
4
Correct Answer :

1.85H.P


Explanation :
No Explanation available for this question
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