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A drain trap or gully is used to connect the pipe from your home into an underground drainage system.
The aim of the drain trap is to allow waste to go down the drainage system, whilst preventing harmful insects, vermin and sewer gases from entering the property by going back up the pipe.
Thus, in plumbing, a trap is a device shaped with a bending pipe path to retain fluid to prevent sewer gases from entering buildings while allowing waste to pass through.
In oil refineries, traps are used to prevent hydrocarbons and other dangerous gases from escaping through drains.

Latching current rating of SCR is usually 2-3 times of holding current values (for higher rating SCRs ). Latching current is associated with turn on process and holding current is associated with turn off process.

In feedback topology, voltage feedback amplifier is an example of voltage controlled voltage source, i.e. both input and output is voltage. The sampling at output is voltage, so we have shunt sampling and mixing at input is also voltage which requires series mixing.
Therefore SERIES-SHUNT

The flash ADC is the fastest type available.
The conversion speed of the flash ADC is the sum of the comparator delays and the logic delay

Moore Machine ? A Moore machine is defined as a machine whose output values are determined by its present state ONLY.

Mealy Machine ? A Mealy machine is defined as a machine whose output values are determined by both its present state and present inputs.

The consistent of cement are Bogues Compounds.
They give binding property to cement.
They are:

Tetra Calcium Alumino Ferrate: 6 – 10%
Tri-Calcium Silicate: 30 – 50%
Di-Calcium Silicate: 20 – 45%
Tricalcium Aluminate: 11 – 25%

Over current Relay is a type of the protection relay, which operates when the current increases beyond the operating value of the relay.

Pumped storage plant typically generate power during times of peak electric demand

For a constant velocity the water level same on both sides, under constant horizontal acceleration, the velocity changes equally per unit time .
That push the liquid back which make a rise on the rear side of the tank.
Thus the level of liquid will rise on the back side and fall on the front side.

IGBT incorporates the advantages of both BJT and MOSFET. BJT has better ON state performance while the switching performance is poor. A MOSFET has the advantages of higher commutation speed and better switching performance. Thus IGBT possess both low conduction loss and low switching losses.

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