Which one of these is not a monitoring and diagnostic test for transformer oil?

Volatility is a statistical measure of the dispersion of returns for a given security or market index.
Analysis of a mineral oil sample for volatile compounds provides an indication of whether a fault or significant degradation has occurred.

In a typical DC micro grid, hybrid storage system is a combination of

Hybrid storage system is a combination of microturbines, fuel cells, photovoltaics (PV), Lead acid battery and ultra or super capacitors etc.

In the circuit shown in figure, the voltage across 8 Ω resistor is 20 V. Calculate the supply voltage.

Equivalent resistance of the circuit,
Req = (12||18) + 8
Req = 7.2 + 8
Req = 15.2 ohm
Source current = current through 8 ohm resistor, I = Vr/R8
I = 20/8
I = 2.5 A
Supply votage V = I*Req
V = 2.5*15.2
V = 38 V

When different types of consumers are charged at different uniform per unit rates, it is called as ____

When different types of consumers are charged at different uniform per unit rates, it is said to be Flat Rate Tariff.
In this type, the consumers are grouped into different classes.
Each class is charged at different uniform rate.

Who started the daily newspaper 'National Herald' in 1938?

Which of the following is not a Font style in Microsoft Word?