GATE XE 2022 Paper 1 — page 9

Questions 25–27 of 175. Imported answers require review unless explicitly marked reviewed.

As temperature increases

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the dynamic viscosity of a gas increases.

the dynamic viscosity of a liquid decreases.

the dynamic viscosity of a liquid does not change.

the dynamic viscosity of a gas decreases.

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Which of the following statement(s) regarding a venturimeter is/are correct?

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In the direction of flow, it consists of a converging section, a throat, and a diverging section.

In the direction of flow, it consists of a diverging section, a throat, and a converging section.

It is used for flow measurement at a very low Reynolds number.

Pressure tappings are provided just upstream of the venturimeter and at the throat.

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Which of the following statement(s) is/are true for streamlines in a steady incompressible flow?

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Two streamlines cannot intersect each other.

Flow rate increases between two diverging streamlines.

Flow rate decreases between two diverging streamlines.

Stream function has a constant value along a streamline.

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2022 · Paper 1