{"product_id":"hvac-c-20-study-guide-online-practice-exam","title":"HVAC (C-20) Study Guide Book + Online Practice Exam","description":"\u003cp\u003e\u003cstrong\u003eWhat’s included\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLearn the material: \u003ca href=\"\/products\/peerless-study-guide-heating-ventilating-a-c-c-20\"\u003eHVAC (C-20) Study Guide Book\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003ePass the test: \u003ca href=\"\/products\/cslb-hvac-warm-air-heating-ventilating-and-air-conditioning-c-20-license-practice-examination\"\u003eHVAC (C-20) Practice Exam\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat this covers\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePer the state's classification, a C-20 contractor installs, services, and repairs forced-air heating, ventilating, and air conditioning systems, including ductwork, equipment, and refrigeration components. This printed book covers the subjects the state tests. \u003ca href=\"https:\/\/www.cslb.ca.gov\/about_us\/library\/licensing_classifications\/Licensing_Classifications_Detail.aspx?Class=C20\" target=\"_blank\" rel=\"noopener\"\u003eSee the official CSLB C-20 classification\u003c\/a\u003e.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eSample questions\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cem\u003eIn 1 ton of air conditioning there are how many Btu's per hour?\u003c\/em\u003e\u003c\/strong\u003e\u003cbr\u003eA. 10,000 · B. 11,000 · \u003cstrong style=\"color: #2d7a2d;\"\u003e✓ C. 12,000\u003c\/strong\u003e · D. 15,000\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cem\u003eTwo methods of evacuation are:\u003c\/em\u003e\u003c\/strong\u003e\u003cbr\u003eA. Deep and purging · B. Deep and vapor · \u003cstrong style=\"color: #2d7a2d;\"\u003e✓ C. Deep and triple\u003c\/strong\u003e · D. Deep and surface\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cem\u003eThe mechanism that comprises both a service valve and a pressure gauge is a:\u003c\/em\u003e\u003c\/strong\u003e\u003cbr\u003eA. Selenium · B. Charging pulse · \u003cstrong style=\"color: #2d7a2d;\"\u003e✓ C. Testing manifold\u003c\/strong\u003e · D. Transformer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cem\u003eA three pipe water system has which of the following?\u003c\/em\u003e\u003c\/strong\u003e\u003cbr\u003eA. 1 return, 1 supply and 1 reserve · B. 1 supply, 2 returns · \u003cstrong style=\"color: #2d7a2d;\"\u003e✓ C. 2 supplies, 1 return\u003c\/strong\u003e · D. 2 returns, 2 supplies\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cem\u003eA compressor in which compression is attained in a cylinder by rotation of a semiradial member is known as which of the following?\u003c\/em\u003e\u003c\/strong\u003e\u003cbr\u003eA. Compressor · \u003cstrong style=\"color: #2d7a2d;\"\u003e✓ B. Rotary compressor\u003c\/strong\u003e · C. Hermetic compressor · D. Open type compressor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cem\u003eWhich of the following describes series heating cooling circuits?\u003c\/em\u003e\u003c\/strong\u003e\u003cbr\u003eA. Single circuits · \u003cstrong style=\"color: #2d7a2d;\"\u003e✓ B. Combination circuits\u003c\/strong\u003e · C. 3 way circuits · D. 4 way circuits\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Peerless Institute","offers":[{"title":"Default Title","offer_id":46115893248225,"sku":"peerless_hvac-c-20-silver-bundle","price":220.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/5929\/6737\/files\/category-c-20-hero-silver.jpg?v=1776654618","url":"https:\/\/peerlessinstitute.com\/products\/hvac-c-20-study-guide-online-practice-exam","provider":"Peerless Institute","version":"1.0","type":"link"}