QUES: In electric power distribution, capacitors are used for power factor correction. Such capacitors often come as three capacitors connected as a three phase load. Usually, the values of these capacitors are given not in farads but rather as a reactive power in volt-amperes reactive (var). The purpose is to counteract inductive loading from devices like electric motors and transmission lines to make the load appear to be mostly resistive. Individual motor or lamp loads may have capacitors for power factor correction, or larger sets of capacitors (usually with automatic switching devices) may be installed at a load center within a building or in a large utility substation.
How are power factor correction capacitors sometimes installed?

ANS: at a load center within a building

QUES: In 1976, a group of Italian American professors at City University of New York asked to be added as an affirmative action category for promotion and hiring. Italian Americans are usually considered white in the US and would not be covered under affirmative action policies, but the professors believed they were underrepresented. Libertarian economist Thomas Sowell wrote in his book, Affirmative Action Around the World: An Empirical Study, that affirmative action policies encourage non-preferred groups to designate themselves as members of preferred groups [i.e., primary beneficiaries of affirmative action] to take advantage of group preference policies.
What was the title of the book written by Thomas Sowell?

ANS: Affirmative Action Around the World: An Empirical Study

QUES: The English word scientist is relatively recent—first coined by William Whewell in the 19th century. Previously, people investigating nature called themselves natural philosophers. While empirical investigations of the natural world have been described since classical antiquity (for example, by Thales, Aristotle, and others), and scientific methods have been employed since the Middle Ages (for example, by Ibn al-Haytham, and Roger Bacon), the dawn of modern science is often traced back to the early modern period and in particular to the scientific revolution that took place in 16th- and 17th-century Europe. Scientific methods are considered to be so fundamental to modern science that some consider earlier inquiries into nature to be pre-scientific. Traditionally, historians of science have defined science sufficiently broadly to include those inquiries.
Ibn al-Haytham and Roger Bacon were scientists in which time period?

ANS: the Middle Ages

QUES: Bern is built on very uneven ground. There is an elevation difference of several metres between the inner city districts on the Aare (Matte, Marzili) and the higher ones (Kirchenfeld, Länggasse).
Which city is higher, Matte or Langgasse?

ANS:
Länggasse