| 1. | ______ is obtained by isothermal hardening operation ? | |
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Cementite
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Sorbite
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Acicular troostite
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Bainite
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Report Question| 2. | Fluid is a substance which offers no resistance to change of ? | |
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pressure
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flow
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shape
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volume
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| 3. | Density of water is maximum at ? | |
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0° C
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0° K
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4° C
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100°C
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| 4. | A perfect gas ? | |
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has constant viscosity
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has zero viscosity
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is incompressible
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None of these
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| 5. | A fluid in equilibrium can’t sustain ? | |
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tensile stress
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compressive stress
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shear stress
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bending stress
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| 6. | For manometer, a better liquid combination is one having ? | |
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higher surface tension
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lower surface tension
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surface tension is no criterion
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high density and viscosity
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| 7. | The resultant upward pressure of the fluid on an immersed body is called ? | |
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upthrust
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buoyancy
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centre of pressure
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None of these
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| 8. | V= 0.0022t – 1.8/t is the equation to determine kinematic viscosity of liquids by ? | |
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Redwood Viscometer
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Engler Viscometer
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Saybolt universal viscometer
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Newton Viscometer
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| 9. | The capillary rise at 20 degree celsius in a clean glass tube of 1 mm bore containing water is approximately ? | |
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3 mm
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5 mm
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10 mm
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30 mm
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| 10. | The rise or depression of liquid in a tube due to surface tension with increase in size of tube will ? | |
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increase
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remain unaffected
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may increase or decrease depending on the characteristics of liquid
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decrease
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