6066. Viscosity of a liquid decreases __________ with rise in temperature.

By Admin / September 7, 2025

Exponentially

Linearly

Logarithmically

None of these

✅ The correct answer is option C.

6063. A perfect gas

6069. A gas (density = 1.5 kg/m³ , viscosity = 2x 10⁻⁵ kg/m.s) flowing through a packed bed (particle size = 0.5 cm, porosity = 0.5) at a superficial velocity of 2 m/s causes a pressure drop of 8400 Pa/m. The pressure drop for another gas, with density of 1.5kg/m³and viscosity of 3 x 10⁻⁵kg/m.s flowing at 3 m/s will be

1. A fire tube boiler is limited to a maximum steam pressure of about __________ kg/cm².

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2. Transformer cores are normally made from

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