question:
This is especially useful in medical equipment where the signals from a low-voltage sensor circuit (usually battery-powered) in contact with a living organism must be electrically isolated from any possible electrical failure in a recording or monitoring device operating at potentially dangerous voltages.
Where are opto-isolators found?

answer: yes

question:
Like English, Dutch did not participate in the second consonant shift.
Along with English, what pronunciation shift did Dutch not undergo?

answer: yes

question:
His eighteen-year-old godfather, for whom he was named, was Fryderyk Skarbek, a pupil of Nicolas Chopin.
From where id Chopin's father emigrate from?

answer: no

question:
An ancient Indian treatise on statecraft, economic policy and military strategy by Kautilya and Vishnugupta, who are traditionally identified with Chanakya (c. 350-283 BCE).
Who are Kautilya and Vishnugupta usually grouped with?

answer:
yes