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049 Related Question Answers
3. According to Gibb’s phase rule, the number of degrees of freedom of a two component, three phase system is:
3 2 1 0
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4. Which one of the following is correct for Berger’s vector in screw dislocation?
perpendicular to the dislocation line parallel to the dislocation line inclined to the dislocation line opposite to the dislocation line
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5. In high speed steels, the alloying element with maximum percentage is :
Vanadium Nickel Tungsten Silicon
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6. In electric arc welding, arc is created by :
current voltage frequency contact resistance
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8. The surface roughness on a drawing is represented by:
circles triangles squares zig-zag line
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9. Among the conventional machining processes, the maximum specific energy is consumed in :
turning drilling grinding facing
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12. Density of a fluid is sensitive to change in pressure. Such fluid is known as :
ideal fluid real fluid compressible fluid perfect fluid
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13. The density of one litre of petrol of specific gravity 0.7is :
600 kg/m3 600 N/ms 1 700 kg/m3 700 N/ms
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14. Whirl pool in a river is an example for :
forced vortex flow free vortex flow irrotational flow viscous flow
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15. A steady irrotational flow of an incompressiblefluid isknown as:
laminar flow creeping flow potential flow shear flow
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17. The equations of motion for a viscous fluid is known as :
Euler’s equation Bernoulli's equation Reynold’s equation Navier-Stoke’s equation
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18. Darcy’s friction factor in a pipe flow corresponds to a Reynold’s number of 2000 is :
0.016 0.032 0.32 0.16
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21. Modern Francis turbine is essentially a :
Tangential flow turbine Mixed flow turbine Axial flow turbine Radial flow turbine
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22. The ratio of pressure force to inertia force is known as;
Reynold’s number Froude’s number Weber number Euler’s number
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23. Series operation of & centrifugal pump results in-
high head high discharge high speed reduced power consumption
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24. Hydraulic ramworks on the principle of:
positive displacement action centrifugal action reciprocating action inertia force of water in the supply line
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25. Hydraulic intenaifier is used for :
storing energy of a fluid in the form of pressure energy increasing the pressure intensity of a liquid transfer and lift heavy loads augment the supply of water
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