{"id":6023,"date":"2024-06-17T13:19:48","date_gmt":"2024-06-17T13:19:48","guid":{"rendered":"https:\/\/osmaps.com\/discover\/?post_type=trig-pillars&#038;p=6023"},"modified":"2026-04-13T15:35:38","modified_gmt":"2026-04-13T15:35:38","slug":"trig-pillar-quiz","status":"publish","type":"trig-pillars","link":"https:\/\/osmaps.com\/discover\/trig-pillars\/trig-pillar-quiz\/","title":{"rendered":"Trig Pillar Quiz"},"content":{"rendered":"\n\t\t<header id=\"block_d80f4e0e0f1e045b6e56c900a541c9ef\" class=\"SingleHero skip-lazy default\">\n\n\t\t\t<div class=\"container\">\n\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t<ul class=\"SingleHero__categories\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<li>\n\t\t\t\t\t\t\t\t<a href=\"https:\/\/osmaps.com\/discover\/tag\/trig-pillars\/\" class=\"category\">\n\t\t\t\t\t\t\t\t\tTrig Pillars\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t<\/ul>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t<h1 class=\"SingleHero__title\" >\n\t\t\t\t\t\tTrig Pillar Quiz\t\t\t\t\t<\/h1>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t<div class=\"row justify-content-center align-items-center SingleHero__author\">\n\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"col-auto name\">\n\t\t\t\t\t\t\t\tBy OS Team\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t<p class=\"SingleHero__meta\">\n\t\t\t\t\t<span>\n\t\t\t\t\t\tPublished on \t\t\t\t\t\t<time datetime=\"2024-06-17T13:19:48+00:00\" itemprop=\"datePublished\">June 17, 2024<\/time>\n\t\t\t\t\t<\/span>\n\n\t\t\t\t\t<span class=\"dot\"><\/span>\n\n\t\t\t\t\t6 min read\t\t\t\t<\/p>\n\n\t\t\t\t<div class=\"SingleHero__thumbnail\">\n\t\t\t\t\t\n\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"850\" height=\"596\" src=\"https:\/\/osmaps.com\/discover\/wp-content\/uploads\/2024\/06\/26471932776_5a85c4fbbf_o.jpg\" class=\"attachment-hd size-hd wp-post-image\" alt=\"Vintage picture of surveyors at a trig pillar\" srcset=\"https:\/\/osmaps.com\/discover\/wp-content\/uploads\/2024\/06\/26471932776_5a85c4fbbf_o.jpg 850w, https:\/\/osmaps.com\/discover\/wp-content\/uploads\/2024\/06\/26471932776_5a85c4fbbf_o-300x210.jpg 300w, https:\/\/osmaps.com\/discover\/wp-content\/uploads\/2024\/06\/26471932776_5a85c4fbbf_o-768x539.jpg 768w\" sizes=\"auto, (max-width: 850px) 100vw, 850px\" \/>\t\t\t\t<\/div>\n\n\t\t\t<\/div>\n\t\t<\/header>\n\n\t\n\n\n\t\t<article id=\"block_d5d3e867104c70b38b4c5fe6280e02f3\" class=\"Universal  c-small default pt-default pb-default mt-none mb-none    \" >\n\t\t\t<div class=\"container\">\n\n\t\t\t\t\n\t\t\t\t<div class=\"InnerBlocks\">\n\t\t\t\t\t<span class=\"lead\"><\/span>\n\n\t\t\t\t\t\n\t\t\t\t\t\n\n<p>How much do you know about trig pillars, those mysterious obelisks dotting the British landscape? Take this quiz and find out!<\/p>\n\n\n\n<div id=\"quiz\"><\/div>\n<div id=\"quizsubmit\"><button id=\"submit\">Click here to show your score!<\/button><\/div>\n<div id=\"results\"><\/div>\n\n\n\n<p class=\"has-small-font-size\">(Sorry, but the quiz will not appear on out-of-date browsers like Internet Explorer or Opera Mini. Please switch to a different browser if possible)<\/p>\n\n\n\n<script>\n\n\nconst myQuestions = [\n\n{\nquestion: \"1: Who designed the iconic trig pillar ?\",\nanswers: {\nA: \"Sir Isaac Newton\",\nB: \"Captain Jack Sparrow\",\nC: \"Brigadier Martin Hotine\",\nD: \"Nick Giles OBE\",\n},\ncorrectAnswer: \"C\",\nanswerNotes: \"Brigadier Martin Hotine CMG CBE was the head of the Trigonometrical and Levelling Division at Ordnance Survey and created the iconic design\",\nanswerImage:  \"\",\nosmLink: \"\",\nosmButtText: \"\",\n},\n{\nquestion: \"2: Why were trig pillars built? \",\nanswers: {\nA: \"To show where the top of a hill is\",\nB: \"To improve our mapping\",\nC: \"Stone Age monuments\",\nD:  \"Part of a competition by surveyors\",\n},\ncorrectAnswer: \"B\",\nanswerNotes: \"They were use for traingulation, a process used to get very accurate locations used to make maps\",\nanswerImage:  \"\",\nosmLink: \"\",\nosmButtText: \"\",\n},\n{\nquestion: \"3: How tall are typical trig pillars?\",\nanswers: {\nA: \"1 foot\",\nB: \"4 foot\",\nC: \"10 feet\",\nD: \"20 feet\",\n},\ncorrectAnswer: \"B\",\nanswerNotes: \"They are designed to put the theodolite mounted on top roughtly at eye level, but erosion over time has changed how many appear now.\",\nanswerImage:  \"\",\nosmLink: \"\",\nosmButtText: \"\",\n},\n{\nquestion: \"4: What\u2019s the brass fitting called on top of the trig? \",\nanswers: {\nA: \"Trig Cap\",\nB: \"Theodolite\",\nC: \"Cradle\",\nD: \"Spider\",\n},\ncorrectAnswer: \"D\",\nanswerNotes: \"It's a spider - with three legs! The theodolite was the expensive instrument screwed into the spider\",\nanswerImage:  \"\",\nosmLink: \"\",\nosmButtText: \"\",\n},\n{\nquestion: \"5: How many trig pillars were built? \",\nanswers: {\nA: \"6000+\",\nB: \"1000\",\nC: \"600\",\nD: \"42\",\n},\ncorrectAnswer: \"A\",\nanswerNotes: \"It's estimated 6173 were built, although some were temporary. From each you should have been able to see at least two others.\",\nanswerImage:  \"\",\nosmLink: \"\",\nosmButtText: \"\",\n},\n{\nquestion: \"6: What was another name for trig pillars?\",\nanswers: {\nA: \"Survey spikes\",\nB: \"Trig Towers\",\nC: \"Hotine Pillars\",\nD: \"They are only TRIG PILLARS\",\n},\ncorrectAnswer: \"C\",\nanswerNotes: \"The classic square share are called Hotine Pillars after Brigadier Martin Hotine. The alternate round design are called Vanessas\",\nanswerImage:  \"\",\nosmLink: \"\",\nosmButtText: \"\",\n},\n{\nquestion: \"7: Which trig sits the lowest below sea level?\",\nanswers: {\nA: \"Great Ouse\",\nB: \"Little Ouse\",\nC: \"Littlehampton\",\nD: \"Loch Ness\",\n},\ncorrectAnswer: \"B\",\nanswerNotes: \"Little Ouse trig pillar near Ely in Cambridgeshire sits at -0.53m below sea level, as the whole area is very low lying\",\nanswerImage:  \"\",\nosmLink: \"\",\nosmButtText: \"\",\n},\n{\nquestion: \"8: The trig pillar is identified on an OS Explorer map, but what does the symbol look like?\u202f\",\nanswers: {\nA:\" A small blue triangle with a dot in the middle\",\u202f \nB: \"A small red square with a triangle in the middle\",\u202f \nC: \"A small green triangle with a dot in the middle\", \nD: \"A small pink triangle\",\n},\ncorrectAnswer: \"A\",\nanswerNotes: \"It's a small blue triangle and a dot in the middle. The pink triangle is a Youth Hostel.\",\nanswerImage:  \"\",\nosmLink: \"\",\nosmButtText: \"\",\n},\n\n\n\n    \n];\n\n  const quizContainer = document.getElementById(\"quiz\");\n  const resultsContainer = document.getElementById(\"results\");\n  const submitButton = document.getElementById(\"submit\");\n    \n\n  function buildQuiz() {\n    \/\/ we'll need a place to store the HTML output\n    const output = [];\n\n    \/\/ for each question...\n    myQuestions.forEach((currentQuestion, questionNumber) => {\n      \/\/ we'll want to store the list of answer choices\n      const answers = [];\n\n      \/\/ and for each available answer...\n      for (letter in currentQuestion.answers) {\n        \/\/ ...add an HTML radio button. 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Why not subscribe to our newsletter for more, or share this quiz?<\/p>\"\n  \n \n\n  }\n  \n\n  \/\/ display quiz right away\n  buildQuiz();\n\n  \/\/ on submit, show results\n  submitButton.addEventListener(\"click\", showResults);\n\n\n\n    function showresult(aid, qno, answerSelected) {\n    \/\/disable control\n    document.getElementById(aid).classList.add(\"disabledbutton\");\n    \n    \n    \/\/change image, an old one exists\n    qid = \"question\" + qno\n    var img = document.getElementById(qid).getElementsByTagName(\"IMG\")[0]\n    if (img && myQuestions[qno].answerImage) {\n        img.src = \"site\/uploads\/images\/\" + myQuestions[qno].answerImage;\n    }\n    \n               \n    \/\/append correct data\n    var correctAns = myQuestions[qno].correctAnswer\n    var resultText = \"\"\n    if (answerSelected == correctAns) {\n        document.getElementById(aid).classList.add(\"answsercorrect\");\n    \tresultText = \"Correct!\";\n    }\n    else {\n        document.getElementById(aid).classList.add(\"answserwrong\");\n    \tresultText = \"Wrong! The correct answer was \" + correctAns + \". \";\n    }\n    var node = document.createElement(\"P\");\n    var textnode =  document.createTextNode(resultText); \n    node.className = \"answerresult\";\n    node.appendChild(textnode); \n    document.getElementById(aid).appendChild(node); \n    \n    resultText = myQuestions[qno].answerNotes\n    var node = document.createElement(\"P\");\n    node.className = \"answerdesc\";\n    var textnode =  document.createTextNode(resultText); \n    node.appendChild(textnode); \n    document.getElementById(aid).appendChild(node); \n    \n    \/\/Optional button, currently disabled\n    \/\/var node = document.createElement(\"A\");\n    \/\/node.className = \"borderbutton\";\n    \/\/var textnode =  document.createTextNode(\"\"); \n    \/\/node.appendChild(textnode); \n    \/\/document.getElementById(aid).appendChild(node); \n    \/\/node.innerHTML = myQuestions[qno].osmButtText;\n    \/\/node.href = myQuestions[qno].osmLink;\n    \/\/node.target = \"_blank\";\n    }\n\n<\/script>\n\n\n\n<style>\n\n#quiz {\n  text-align: left;\n  width: 100%;\n  margin: 0 auto;\n  padding-top: 20px;\n  padding-bottom: 20px;\n}\n\n.question {\n  margin-bottom: 2em;\n  clear: both;\n  width: 45%;\n  padding: 10px;\n  float: left;\n  clear: both;\n  margin-right: 5%;\n}\n\n.question img {\n  margin:10px 0 10px 0;\n  vertical-align: text-top;\n}\n\n.quizrule {\n  clear: both;\n  margin-bottom: 2em;\n}\n\n.answers {\n  margin-bottom: 2em;\n  padding: 10px;\n  width: 50%;\n  float: left;\n}\n\n.answers label {\n  display: block;\n  background-color: #f6f6f6;\n  margin: 8px 0;\n  padding: 8px;\n}\n\n.answers label:hover {\n  background-color: #d0cdcd;\n}\n\n.disabledbutton label {\n  pointer-events: none;\n}\n\n.answsercorrect {\n  background-color: rgba(158, 255, 161, 0.5);\n}\n\n.answserwrong {\n  background-color: rgba(249, 167, 167, 0.5);\n}\n\n\n\n.answerresult {\n  font-weight: bold;\n  margin-top: 1em;\n  margin-bottom: 0.5em;\n}\n\n.answerdesc {\n  margin: 0;\n}\n\n.borderbutton  {\n    font-size: 0.8em;\n    margin: 0 auto;\n    display: block;\n    width: fit-content;\n    margin-top: 1em;\n}\n\n#quizsubmit {\n  clear:both;\n}\n\n#submit {\n  font-size: 1em;\n  cursor: pointer;\n  margin-bottom: 20px;\n}\n\n#results {\n  font-size: 1.2em;\n  font-weight: bold;\n}\n\n#results img {\n  vertical-align: middle;\n  margin-right: 10px;\n}\n\n.correctAnswers {\n  font-size:0.9em;\n}\n\nimg#imginsta {\n    max-width: 360px;\n}\n\n\n@media screen and (max-width: 600px) {\n  #quiz {\n    width: 100%;\n  }\n\n  .question {\n    width: 100%;\n    margin-right: 0;\n    margin-bottom: 0;\n  }\n  .answers {\n    width: 100%;\n  }\n}\n\n<\/style>\n\n\n\n<p><\/p>\n\n\n\n\n\n\n<p class=\"has-text-align-center\"><\/p>\n\n\n\t\t\t\t\t\t\t\t\t<\/div>\n\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/article>\n\t","protected":false},"excerpt":{"rendered":"<p>How much do you know about trig pillars, those mysterious obelisks dotting the British landscape? Try this tricky trig pillar quiz and prove your triangulation knowledge<\/p>\n","protected":false},"featured_media":5995,"parent":0,"template":"","tags":[398],"class_list":["post-6023","trig-pillars","type-trig-pillars","status-publish","has-post-thumbnail","hentry","tag-trig-pillars"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Trig Pillar Quiz - OS Maps Discover<\/title>\n<meta name=\"description\" content=\"How much do you know about trig pillars, those mysterious obelisks dotting the British landscape? 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