Problem: Printed circuit board:

Areas that should not be soldered may be covered with solder resist (solder mask). One of the most common solder resists used today is called "LPI" (liquid photoimageable solder mask).  A photo-sensitive coating is applied to the surface of the PWB, then exposed to light through the solder mask image film, and finally developed where the unexposed areas are washed away. Dry film solder mask is similar to the dry film used to image the PWB for plating or etching. After being laminated to the PWB surface it is imaged and develop as LPI. Once common but no longer commonly used because of its low accuracy and resolution is to screen print epoxy ink. Solder resist also provides protection from the environment.

Wet film solder mask is similar to what?
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A: unanswerable


Problem: While the new plebeian nobility made social, political and religious inroads on traditionally patrician preserves, their electorate maintained their distinctive political traditions and religious cults. During the Punic crisis, popular cult to Dionysus emerged from southern Italy; Dionysus was equated with Father Liber, the inventor of plebeian augury and personification of plebeian freedoms, and with Roman Bacchus. Official consternation at these enthusiastic, unofficial Bacchanalia cults was expressed as moral outrage at their supposed subversion, and was followed by ferocious suppression. Much later, a statue of Marsyas, the silen of Dionysus flayed by Apollo, became a focus of brief symbolic resistance to Augustus' censorship. Augustus himself claimed the patronage of Venus and Apollo; but his settlement appealed to all classes. Where loyalty was implicit, no divine hierarchy need be politically enforced; Liber's festival continued.
What did the patrician electorate keep in spite of a new plebeian nobility? 
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Answer: political traditions and religious cults


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Switzerland has four official languages: principally German (63.5% total population share, with foreign residents, in 2013); French (22.5%) in the west; and Italian (8.1%) in the south. The fourth official language, Romansh (0.5%), is a Romance language spoken locally in the southeastern trilingual canton of Graubünden, and is designated by Article 4 of the Federal Constitution as a national language along with German, French, and Italian, and in Article 70 as an official language if the authorities communicate with persons who speak Romansh. However, federal laws and other official acts do not need to be decreed in Romansh.
How many official languages does Switzerland have?
A: four


Context and question: In 1914, Japan joined the Entente during World War I and captured various German Empire colonies, including several in Micronesia. On September 29, 1914, Japanese troops occupied the Enewetak Atoll, and on September 30, 1914, the Jaluit Atoll, the administrative centre of the Marshall Islands. After the war, on June 28, 1919, Germany signed (under protest) the Treaty of Versailles. It renounced all of its Pacific possessions, including the Marshall Islands. On December 17, 1920, the Council of the League of Nations approved the South Pacific Mandate for Japan to take over all former German colonies in the Pacific Ocean located north of the Equator. The Administrative Centre of the Marshall Islands archipelago remained Jaluit.
On what date was the Treaty of Versailles signed?
Answer: June 28, 1919


Question: A later literary standard, dating from the later 10th century, arose under the influence of Bishop Æthelwold of Winchester, and was followed by such writers as the prolific Ælfric of Eynsham ("the Grammarian"). This form of the language is known as the "Winchester standard", or more commonly as Late West Saxon. It is considered to represent the "classical" form of Old English. It retained its position of prestige until the time of the Norman Conquest, after which English ceased for a time to be of importance as a literary language.
Is there an answer to this question: What replaced the classic form of Old English?

Answer: unanswerable


In ultra high vacuum systems, some very "odd" leakage paths and outgassing sources must be considered. The water absorption of aluminium and palladium becomes an unacceptable source of outgassing, and even the adsorptivity of hard metals such as stainless steel or titanium must be considered. Some oils and greases will boil off in extreme vacuums. The permeability of the metallic chamber walls may have to be considered, and the grain direction of the metallic flanges should be parallel to the flange face.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): How should palladium be placed when it has oil on it?
Ah, so..
unanswerable