The most difficult history of technics riddles A list of history of technics related questions that are most often answered incorrectly Technology quiz Which company produced the world's first commercial jet airliner?De Havilland. English-made de Havilland DH 106 Comet was introduced in 1952 by British Airways. A year after, Comet airframes began suffering catastrophic metal fatigue, with three of them tearing apart during mid-flight.very hard 30% FokkerFokker12%BoeingBoeing34%DouglasDouglas22%De HavillandDe Havilland30%Created by: Kasia. Statistics based on 4477 answers in 2 languages »planes riddles » Where was the world’s first regular TV service?Great Britain. The first regular high-definition (then defined as at least 200 lines) television service from the BBC started on November 2, 1936. Programs were broadcast daily, Monday to Saturday, at 15:00–16:00 and 21:00–22:00.hard 46% Great BritainGreat Britain46%GermanyGermany11%the United Statesthe United States35%Soviet UnionSoviet Union6%Created by: Paul Caspack. Statistics based on 9464 answers in 2 languages »TV riddles » By what were the first London Underground trains pulled? Steam locomotives. Ventilation shafts at various points on the route allowed the engines to expel steam and bring fresh air into the tunnels. These shafts were sometimes hidden behind false facades, like the one on the photo (Leinster Gardens 23). The right-hand property is a fake.hard 48% steam locomotivessteam locomotives48%diesel locomotivesdiesel locomotives8%electric locomotiveselectric locomotives4%horseshorses37%Created by: Luca Biaggi. Statistics based on 12572 answers in 2 languages »metro riddles » Which non-electronic musical instrument has the most complex design?Pipe organ. The classical organ is recognized as the most complex man-made device until late 19th century, when it was displaced by the telephone exchange. Large pipe organs have seven keyboards, complex wind system and up to 20,000 pipes. hard 50% pianopiano10%clarinetclarinet14%pipe organpipe organ50%accordionaccordion25%Created by: globalquiz.org. Statistics based on 6519 answers in 2 languages »musical instruments riddles » Which of the following objects did not appear on the early photographs, because they had been too difficult to capture?People. Because of very long exposure times (up to several hours), first photographers pointed their cameras at static objects. The first photo of a person was made by incident by Louis Daguerre in 1838. He depicted a pedestrian who stopped for a shoe shine, taking a photo of Paris streets.average 61% buildingsbuildings11%naturenature9%peoplepeople61%panoramaspanoramas17%Created by: globalquiz.org. Statistics based on 8089 answers in 2 languages »history of photography riddles » Where was the world’s first underground railway system built?London. The Metropolitan Railway opened on 10 January 1863, and was carrying over 26,000 passengers a day within a few months of opening. The early lines were built by various private companies, and became integrated in 1933.average 66% New YorkNew York14%LondonLondon66%ParisParis8%MoscowMoscow10%Created by: globalquiz.org. Statistics based on 26294 answers in 2 languages »London riddles » Play technology quiz and see all the questions.