Problem: Elevator:

Historically, AC motors were used for single or double speed elevator machines on the grounds of cost and lower usage applications where car speed and passenger comfort were less of an issue, but for higher speed, larger capacity elevators, the need for infinitely variable speed control over the traction machine becomes an issue. Therefore, DC machines powered by an AC/DC motor generator were the preferred solution. The MG set also typically powered the relay controller of the elevator, which has the added advantage of electrically isolating the elevators from the rest of a building's electrical system, thus eliminating the transient power spikes in the building's electrical supply caused by the motors starting and stopping (causing lighting to dim every time the elevators are used for example), as well as interference to other electrical equipment caused by the arcing of the relay contactors in the control system.

What is a known advantage of the MG set?
---
A: electrically isolating the elevators from the rest of a building's electrical system


Problem: Bermuda:

It established a colony at Jamestown, Virginia, in 1607. Two years later, a flotilla of seven ships left England under the Company's Admiral, Sir George Somers, and the new Governor of Jamestown, Sir Thomas Gates, with several hundred settlers, food and supplies to relieve the colony of Jamestown. Somers had previous experience sailing with both Sir Francis Drake and Sir Walter Raleigh. The flotilla was broken up by a storm. As the flagship, the Sea Venture, was taking on water, Somers drove it onto Bermuda's reef and gained the shores safely with smaller boats – all 150 passengers and a dog survived. (William Shakespeare's play The Tempest, in which the character Ariel refers to the "still-vex'd Bermoothes" (I.ii.229), is thought to have been inspired by William Strachey's account of this shipwreck.) They stayed 10 months, starting a new settlement and building two small ships to sail to Jamestown. The island was claimed for the English Crown, and the charter of the Virginia Company was later extended to include it.

Who did Sommer's claim the island for?
---
A: the English Crown


Problem: Nintendo Entertainment System:

The Nintendo Entertainment System (also abbreviated as NES) is an 8-bit home video game console that was developed and manufactured by Nintendo. It was initially released in Japan as the Family Computer (Japanese: ファミリーコンピュータ, Hepburn: Famirī Konpyūta?) (also known by the portmanteau abbreviation Famicom (ファミコン, Famikon?) and abbreviated as FC) on July 15, 1983, and was later released in North America during 1985, in Europe during 1986, and Australia in 1987. In South Korea, it was known as the Hyundai Comboy (현대 컴보이 Hyeondae Keomboi) and was distributed by SK Hynix which then was known as Hyundai Electronics. It was succeeded by the Super Nintendo Entertainment System.

When was it released in Australia?
---
A: 1987


Problem: Pain:

The Multidimensional Pain Inventory (MPI) is a questionnaire designed to assess the psychosocial state of a person with chronic pain. Analysis of MPI results by Turk and Rudy (1988) found three classes of chronic pain patient: "(a) dysfunctional, people who perceived the severity of their pain to be high, reported that pain interfered with much of their lives, reported a higher degree of psychological distress caused by pain, and reported low levels of activity; (b) interpersonally distressed, people with a common perception that significant others were not very supportive of their pain problems; and (c) adaptive copers, patients who reported high levels of social support, relatively low levels of pain and perceived interference, and relatively high levels of activity." Combining the MPI characterization of the person with their IASP five-category pain profile is recommended for deriving the most useful case description.

What do dysfunctional people perceive the severity of their pain to be?
---
A:
high