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QUESTIONS

Hydraulics and Fluid Mechanics in ME
If the net positive suction head (NPSH) requirement for the pump is not satisfied, then

Excessive power will be consumed
Efficiency will be low
Cavitation will be formed
No flow will take place

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Hydraulics and Fluid Mechanics in ME
A body floats in stable equilibrium

When its meatcentric height is zero
When the metacentre is above e.g.
Metacentre has nothing to do with position of e.g. for determining stability
When its e.g. is below its center of buoyancy

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Rectifiers and Converters
Which of the following mercury arc rectifier will deliver least undulating current?

Two-phase
Three-phase
Six-phase
Single-phase

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Technology
What was the first ARPANET message?

Hello World
cyberspace, the final frontier
lo
Marry had a little lamb.

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Hydraulics and Fluid Mechanics in ME
If no resistance is encountered by displacement, such a substance is known as

Ideal fluid
Fluid
Gas
Water

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