The loss of head due to sudden enlargement is attributed to

1.  Viscosity of fluid

2.  Generation of heat

3.  Roughness of pipe

4.  Production and dissipation of turbulent energy

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4
Correct Answer :

Production and dissipation of turbulent energy


Explanation :
No Explanation available for this question

Four piezometer openings in the same crossection of a cast iron pipe indicate the following pressure for simultaneous reading 43,42.6,42.4,37mm Hg What value should taken for the pressure

1.  41.5

2.  43.0

3.  37.0

4.  42.67

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4
Correct Answer :

42.67


Explanation :
No Explanation available for this question

A 20cm diameter pipe 5000meters long conveya 0.05cubic of water which is to be pumped through a height of 6 meters. The horse power required by the pump, if its efficiency is 75%.Take 4f=0.006 will be

1.  74.2HP

2.  74HP

3.  75HP

4.  50HP

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4
Correct Answer :

74.2HP


Explanation :
No Explanation available for this question

Water flow through a 0.6m diameter, 1000m long pipe from a 30m over head tank to a village and find discharge (in litres) at the village (at ground level), assuming fanning friction factor f=0.04 and ignoring minor losses due to bend etc

1.  218lit/sec

2.  318lit/sec

3.  418lit/sec

4.  618lit/sec

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4
Correct Answer :

418lit/sec


Explanation :
No Explanation available for this question

The diameter of uniform pipe to replace a compound pipeline having the following elements will be i)1000m of 50cm diameter ii)500m of 40cm diameter iii)250m of 30cm diameter (The total length should remain the same)

1.  38cm

2.  39cm

3.  40cm

4.  42cm

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4
Correct Answer :

39cm


Explanation :
No Explanation available for this question

Some computer systems support dual mode operation –the user mode and the supervisor or monitor mode.These refer to the modes

1.  by which user programs handle their data

2.  by which the operating system excutes user programs

3.  in which the processor and the associated hardware operate

4.   of memory acess

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4
Correct Answer :

in which the processor and the associated hardware operate


Explanation :
No Explanation available for this question

Water (ρ=1000kg/m3) flows horizontally through a nozzle in to the atmosphere under the conditions given.(assume steady state flow) An inlet A1=10-3m2;V1=2m/sec P1=3*105Pa(gauge) At outlet:A2=10-4m2; P2=Patm The external horizental force needed to keep the nozzle in place will be

1.  233N

2.  243N

3.  253N

4.  263N

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4
Correct Answer :

253N


Explanation :
No Explanation available for this question

A venturimeter have throat diameter =10.5 is fitted to a water pipe line(internal diameter=21.0cm)in order to monitor flow rate.To improve accuracy of measurement, pressure difference across the venturi is measured with the help of an inclined tube manometer the angle of inclination being 300 as shown in fig. For the manometer reading of 9.5cm of mercury, find the flow rate. Take coefficient of discharge of venture is 0.984.

1.  0.01m3/sec

2.  002m3/sec

3.  0.03m3/sec

4.  0.04m3/sec

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4
Correct Answer :

0.03m3/sec


Explanation :
No Explanation available for this question

Power expanded by the flow in a distance of 12 m will be

1.  12.24kw

2.  16.24kW

3.  20.24kW

4.  14.24kW

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4
Correct Answer :

16.24kW


Explanation :
No Explanation available for this question

For the water is flowing through a 20cm diameter pipe with friction factor f=0.04. The flow is

1.  Viscous

2.  Non viscous

3.  Both a and b

4.  None of these

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4
Correct Answer :

Viscous


Explanation :
No Explanation available for this question
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