{"id":57356,"date":"2026-01-07T14:35:06","date_gmt":"2026-01-07T14:35:06","guid":{"rendered":"https:\/\/testsdmv.com\/study-guides\/arkansas\/chapter-12\/"},"modified":"2026-03-19T05:43:12","modified_gmt":"2026-03-19T05:43:12","slug":"chapter-12","status":"publish","type":"page","link":"https:\/\/testsdmv.com\/vi\/study-guides\/arkansas\/chapter-12\/","title":{"rendered":"Ch\u01b0\u01a1ng 12: K\u00e9o r\u01a1-mo\u00f3c"},"content":{"rendered":"\n<div>\n<div>\n<div class=\"dmv-lang-container\">\n    <div class=\"dmv-lang-links\">\n        \n<div role=\"navigation\" aria-label=\"Language Switcher\" class=\"wpml-ls-statics-shortcode_actions wpml-ls wpml-ls-legacy-list-horizontal\">\n\t<ul><li class=\"wpml-ls-slot-shortcode_actions wpml-ls-item wpml-ls-item-en wpml-ls-first-item wpml-ls-item-legacy-list-horizontal\">\n\t\t\t\t<a href=\"https:\/\/testsdmv.com\/\" hreflang=\"en\" lang=\"en\" class=\"wpml-ls-link\" aria-label=\"Switch to English\" title=\"Switch to English\">\n\t\t\t\t\t<span class=\"wpml-ls-native\">English<\/span><\/a>\n\t\t\t<\/li><li class=\"wpml-ls-slot-shortcode_actions wpml-ls-item wpml-ls-item-es wpml-ls-item-legacy-list-horizontal\">\n\t\t\t\t<a href=\"https:\/\/testsdmv.com\/es\/\" hreflang=\"es\" lang=\"es\" class=\"wpml-ls-link\" aria-label=\"Switch to Espa\u00f1ol\" title=\"Switch to Espa\u00f1ol\">\n\t\t\t\t\t<span class=\"wpml-ls-native\">Espa\u00f1ol<\/span><\/a>\n\t\t\t<\/li><li class=\"wpml-ls-slot-shortcode_actions wpml-ls-item wpml-ls-item-zh-hans wpml-ls-item-legacy-list-horizontal\">\n\t\t\t\t<a href=\"https:\/\/testsdmv.com\/zh-hans\/\" hreflang=\"zh-hans\" lang=\"zh-hans\" class=\"wpml-ls-link\" aria-label=\"Switch to \u7b80\u4f53\u4e2d\u6587\" title=\"Switch to \u7b80\u4f53\u4e2d\u6587\">\n\t\t\t\t\t<span class=\"wpml-ls-native\">\u7b80\u4f53\u4e2d\u6587<\/span><\/a>\n\t\t\t<\/li><li class=\"wpml-ls-slot-shortcode_actions wpml-ls-item wpml-ls-item-ko wpml-ls-item-legacy-list-horizontal\">\n\t\t\t\t<a href=\"https:\/\/testsdmv.com\/ko\/\" hreflang=\"ko\" lang=\"ko\" class=\"wpml-ls-link\" aria-label=\"Switch to \ud55c\uad6d\uc5b4\" title=\"Switch to \ud55c\uad6d\uc5b4\">\n\t\t\t\t\t<span class=\"wpml-ls-native\">\ud55c\uad6d\uc5b4<\/span><\/a>\n\t\t\t<\/li><li class=\"wpml-ls-slot-shortcode_actions wpml-ls-item wpml-ls-item-fil-ph wpml-ls-last-item wpml-ls-item-legacy-list-horizontal\">\n\t\t\t\t<a href=\"https:\/\/testsdmv.com\/fil-ph\/\" hreflang=\"fil-ph\" lang=\"fil-ph\" class=\"wpml-ls-link\" aria-label=\"Switch to Tagalog\" title=\"Switch to Tagalog\">\n\t\t\t\t\t<span class=\"wpml-ls-native\">Tagalog<\/span><\/a>\n\t\t\t<\/li><\/ul>\n<\/div>\n\n    <\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"gb-element-ccfc5d40\">\n<p class=\"gb-text gb-text-0f6f7956\">H\u00e3y s\u1eed d\u1ee5ng h\u01b0\u1edbng d\u1eabn n\u00e0y \u0111\u1ec3 chu\u1ea9n b\u1ecb cho k\u1ef3 thi v\u00e0 tham kh\u1ea3o s\u1ed5 tay ch\u00ednh th\u1ee9c \u0111\u1ec3 bi\u1ebft \u0111\u1ea7y \u0111\u1ee7 th\u00f4ng tin.<\/p>\n<\/div>\n\n\n\n<aside class=\"gb-element-67617362\">\n<div class=\"gb-accordion gb-accordion-025724cd\">\n<div class=\"gb-accordion__item gb-accordion__item-88eef01e gb-accordion__item-open\">\n<div role=\"button\" tabindex=\"0\" class=\"gb-accordion__toggle gb-accordion__toggle-760b9f99 gb-block-is-current\" id=\"gb-accordion-toggle-760b9f99\">\n<span class=\"gb-text\">Trong ch\u01b0\u01a1ng n\u00e0y:<\/span>\n\n\n\n<span class=\"gb-accordion__toggle-icon gb-accordion__toggle-icon-37c071d3\"><span class=\"gb-accordion__toggle-icon-open\"><svg aria-hidden=\"true\" viewBox=\"0 0 256 256\"><rect width=\"256\" height=\"256\" fill=\"none\"><\/rect><polyline points=\"208 96 128 176 48 96\" fill=\"none\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"16\"><\/polyline><\/svg><\/span><span class=\"gb-accordion__toggle-icon-close\"><svg aria-hidden=\"true\" viewBox=\"0 0 256 256\"><rect width=\"256\" height=\"256\" fill=\"none\"><\/rect><polyline points=\"48 160 128 80 208 160\" fill=\"none\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"16\"><\/polyline><\/svg><\/span><\/span>\n<\/div>\n\n\n\n<div class=\"gb-accordion__content\" id=\"gb-accordion-content-67669fb5\">\n<div class=\"gb-element-32d91237\"><nav class=\"chapter-nav-auto\" aria-label=\"Chapter sections\"><ul><li><a href=\"#trailer-equipment-loading\">Thi\u1ebft b\u1ecb v\u00e0 Ch\u1ea5t h\u00e0ng<\/a><\/li><li><a href=\"#driving-with-trailer\">L\u00e1i xe v\u1edbi R\u01a1-mo\u00f3c<\/a><\/li><li><a href=\"#quick-numbers\">B\u1ea3ng S\u1ed1 li\u1ec7u Nhanh<\/a><\/li><li><a href=\"#points-suspension\">B\u1ea3ng \u0110i\u1ec3m\/\u0110\u00ecnh ch\u1ec9<\/a><\/li><li><a href=\"#updates-today\">B\u1ea3ng C\u1eadp nh\u1eadt (H\u00f4m nay)<\/a><\/li><li><a href=\"#test-yourself\">T\u1ef1 ki\u1ec3m tra<\/a><\/li><\/ul><\/nav>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/aside>\n\n\n\n<div class=\"study-guide-content\">\n<div class=\"gb-element-595ca641\">\n<p class=\"wp-block-paragraph\">K\u00e9o m\u1ed9t r\u01a1-mo\u00f3c l\u00e0m t\u0103ng \u0111\u00e1ng k\u1ec3 tr\u1ecdng l\u01b0\u1ee3ng v\u00e0 chi\u1ec1u d\u00e0i c\u1ee7a m\u1ed9t chi\u1ebfc xe, thay \u0111\u1ed5i \u0111\u00e1ng k\u1ec3 c\u00e1c \u0111\u1eb7c t\u00ednh x\u1eed l\u00fd, t\u0103ng t\u1ed1c v\u00e0 phanh c\u1ee7a n\u00f3. Hi\u1ec3u c\u00e1c y\u00eau c\u1ea7u v\u1ec1 thi\u1ebft b\u1ecb c\u1ee5 th\u1ec3 v\u00e0 c\u00e1c \u0111i\u1ec1u ch\u1ec9nh khi l\u00e1i xe kh\u00f4ng ch\u1ec9 l\u00e0 v\u1ea5n \u0111\u1ec1 ti\u1ec7n l\u1ee3i; \u0111\u00f3 l\u00e0 m\u1ed9t tr\u00e1ch nhi\u1ec7m an to\u00e0n quan tr\u1ecdng. Vi\u1ec7c ch\u1ea5t h\u00e0ng l\u00ean r\u01a1-mo\u00f3c \u0111\u00fang c\u00e1ch v\u00e0 \u0111i\u1ec1u ch\u1ec9nh c\u00e1c k\u1ef9 thu\u1eadt l\u00e1i xe l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 ng\u0103n ng\u1eeba c\u00e1c t\u00ecnh hu\u1ed1ng nguy hi\u1ec3m nh\u01b0 r\u01a1-mo\u00f3c b\u1ecb l\u1eafc, g\u1eadp g\u00f3c v\u00e0 va ch\u1ea1m do kho\u1ea3ng c\u00e1ch d\u1eebng t\u0103ng l\u00ean.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"trailer-equipment-loading\">Thi\u1ebft b\u1ecb v\u00e0 Ch\u1ea5t h\u00e0ng<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Tr\u01b0\u1edbc khi k\u00e9o, m\u1ed9t ng\u01b0\u1eddi l\u00e1i xe ph\u1ea3i \u0111\u1ea3m b\u1ea3o xe v\u00e0 r\u01a1-mo\u00f3c \u0111\u01b0\u1ee3c trang b\u1ecb \u0111\u00fang c\u00e1ch v\u00e0 tu\u00e2n th\u1ee7 ph\u00e1p lu\u1eadt. M\u1ed1i n\u1ed1i gi\u1eefa hai ph\u01b0\u01a1ng ti\u1ec7n l\u00e0 th\u00e0nh ph\u1ea7n an to\u00e0n quan tr\u1ecdng nh\u1ea5t.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Thi\u1ebft b\u1ecb B\u1eaft bu\u1ed9c<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>M\u00f3c k\u00e9o:<\/strong> M\u00f3c k\u00e9o ph\u1ea3i \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 ph\u00f9 h\u1ee3p v\u1edbi t\u1ed5ng tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a r\u01a1-mo\u00f3c v\u00e0 h\u00e0ng h\u00f3a c\u1ee7a n\u00f3. N\u00f3 ph\u1ea3i \u0111\u01b0\u1ee3c g\u1eafn ch\u1eafc ch\u1eafn v\u00e0o khung c\u1ee7a xe k\u00e9o.<\/li>\n\n\n\n<li><strong>D\u00e2y x\u00edch An to\u00e0n:<\/strong> M\u1ed7i r\u01a1-mo\u00f3c ph\u1ea3i \u0111\u01b0\u1ee3c n\u1ed1i v\u1edbi xe k\u00e9o b\u1eb1ng \u00edt nh\u1ea5t hai d\u00e2y x\u00edch ho\u1eb7c d\u00e2y c\u00e1p an to\u00e0n. C\u00e1c d\u00e2y x\u00edch n\u00e0y ph\u1ea3i \u0111\u01b0\u1ee3c b\u1eaft ch\u00e9o d\u01b0\u1edbi l\u01b0\u1ee1i r\u01a1-mo\u00f3c (theo h\u00ecnh ch\u1eef &#8220;X&#8221;) v\u00e0 \u0111\u01b0\u1ee3c g\u1eafn v\u00e0o xe k\u00e9o. Ch\u00fang ph\u1ea3i \u0111\u1ee7 m\u1ea1nh \u0111\u1ec3 gi\u1eef r\u01a1-mo\u00f3c v\u00e0 ng\u0103n l\u01b0\u1ee1i r\u01a1-mo\u00f3c r\u01a1i xu\u1ed1ng \u0111\u1ea5t n\u1ebfu m\u00f3c k\u00e9o ch\u00ednh b\u1ecb h\u1ecfng.<\/li>\n\n\n\n<li><strong>\u0110\u00e8n:<\/strong> R\u01a1-mo\u00f3c ph\u1ea3i c\u00f3 m\u1ed9t h\u1ec7 th\u1ed1ng \u0111\u00e8n ho\u1ea1t \u0111\u1ed9ng \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi xe k\u00e9o. \u0110i\u1ec1u n\u00e0y bao g\u1ed3m \u0111\u00e8n h\u1eadu, \u0111\u00e8n phanh v\u00e0 \u0111\u00e8n xi-nhan ho\u1ea1t \u0111\u1ed9ng \u0111\u1ed3ng b\u1ed9 v\u1edbi \u0111\u00e8n c\u1ee7a xe k\u00e9o.<\/li>\n\n\n\n<li><strong>Phanh:<\/strong> \u1ede Arkansas, m\u1ed9t r\u01a1-mo\u00f3c \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u ph\u1ea3i c\u00f3 h\u1ec7 th\u1ed1ng phanh ri\u00eang n\u1ebfu t\u1ed5ng tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a n\u00f3 l\u00e0 3.000 lbs (kho\u1ea3ng 1.360 kg) tr\u1edf l\u00ean, ho\u1eb7c n\u1ebfu t\u1ed5ng tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a n\u00f3 l\u1edbn h\u01a1n 40% t\u1ed5ng tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a xe k\u00e9o.<\/li>\n<\/ul>\n<\/div>\n\n\n<\/p>\n\n\n\n<div class=\"gb-element-3735b8d6\">\n<span class=\"gb-shape gb-shape-d1a7541a\"><svg viewBox=\"0 0 16 16\" class=\"bi bi-bookmark-star\" fill=\"currentColor\" height=\"16\" width=\"16\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n  <path d=\"M7.84 4.1a.178.178 0 0 1 .32 0l.634 1.285a.18.18 0 0 0 .134.098l1.42.206c.145.021.204.2.098.303L9.42 6.993a.18.18 0 0 0-.051.158l.242 1.414a.178.178 0 0 1-.258.187l-1.27-.668a.18.18 0 0 0-.165 0l-1.27.668a.178.178 0 0 1-.257-.187l.242-1.414a.18.18 0 0 0-.05-.158l-1.03-1.001a.178.178 0 0 1 .098-.303l1.42-.206a.18.18 0 0 0 .134-.098z\"><\/path>\n  <path d=\"M2 2a2 2 0 0 1 2-2h8a2 2 0 0 1 2 2v13.5a.5.5 0 0 1-.777.416L8 13.101l-5.223 2.815A.5.5 0 0 1 2 15.5zm2-1a1 1 0 0 0-1 1v12.566l4.723-2.482a.5.5 0 0 1 .554 0L13 14.566V2a1 1 0 0 0-1-1z\"><\/path>\n<\/svg><\/span>\n\n\n\n<p class=\"gb-text\">\ud83d\udd12 \u0110\u00e2y l\u00e0 n\u1ed9i dung Premium. Truy c\u1eadp n\u1ed9i dung b\u1ecb gi\u1edbi h\u1ea1n \u2014 c\u00e1c B\u00e0i thi DMV m\u1edf r\u1ed9ng, H\u01b0\u1edbng d\u1eabn h\u1ecdc t\u1eadp v\u00e0 b\u00e0i thi CDL.<\/p>\n\n\n\n<a class=\"gb-text gb-text-4785f37c\" href=\"https:\/\/testsdmv.com\/vi\/pricing\/\">Truy c\u1eadp G\u00f3i Premium<\/a>\n\n\n\n<p class=\"gb-text gb-text-95adcd10\"><em>\u0110\u00e3 mua? <a href=\"https:\/\/testsdmv.com\/vi\/sign-in\/\">\u0110\u0103ng nh\u1eadp<\/a><\/em><\/p>\n<\/div>\n\n\n<p>\n\n\n\n\n\n\n<div><nav class=\"tdmv-nav-container\" aria-label=\"Page navigation\"><a href=\"https:\/\/testsdmv.com\/vi\/study-guides\/arkansas\/chapter-11\/\" class=\"tdmv-nav-btn prev-btn\">< Ch\u01b0\u01a1ng tr\u01b0\u1edbc<\/a><span class=\"empty-nav-placeholder\"><\/span><\/nav>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>K\u00e9o m\u1ed9t r\u01a1-mo\u00f3c l\u00e0m t\u0103ng \u0111\u00e1ng k\u1ec3 tr\u1ecdng l\u01b0\u1ee3ng v\u00e0 chi\u1ec1u d\u00e0i c\u1ee7a m\u1ed9t chi\u1ebfc xe, thay \u0111\u1ed5i \u0111\u00e1ng k\u1ec3 c\u00e1c \u0111\u1eb7c t\u00ednh x\u1eed l\u00fd, t\u0103ng t\u1ed1c v\u00e0 phanh c\u1ee7a n\u00f3. Hi\u1ec3u c\u00e1c y\u00eau c\u1ea7u v\u1ec1 thi\u1ebft b\u1ecb c\u1ee5 th\u1ec3 v\u00e0 c\u00e1c \u0111i\u1ec1u ch\u1ec9nh khi l\u00e1i xe kh\u00f4ng ch\u1ec9 l\u00e0 v\u1ea5n \u0111\u1ec1 ti\u1ec7n l\u1ee3i; \u0111\u00f3 &#8230; <a title=\"Ch\u01b0\u01a1ng 12: K\u00e9o r\u01a1-mo\u00f3c\" class=\"read-more\" href=\"https:\/\/testsdmv.com\/vi\/study-guides\/arkansas\/chapter-12\/\" aria-label=\"Read more about Ch\u01b0\u01a1ng 12: K\u00e9o r\u01a1-mo\u00f3c\">Read more<\/a><\/p>\n","protected":false},"author":30,"featured_media":34219,"parent":56007,"menu_order":12,"comment_status":"open","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-57356","page","type-page","status-publish","has-post-thumbnail"],"_links":{"self":[{"href":"https:\/\/testsdmv.com\/vi\/wp-json\/wp\/v2\/pages\/57356","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/testsdmv.com\/vi\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/testsdmv.com\/vi\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/testsdmv.com\/vi\/wp-json\/wp\/v2\/users\/30"}],"replies":[{"embeddable":true,"href":"https:\/\/testsdmv.com\/vi\/wp-json\/wp\/v2\/comments?post=57356"}],"version-history":[{"count":0,"href":"https:\/\/testsdmv.com\/vi\/wp-json\/wp\/v2\/pages\/57356\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/testsdmv.com\/vi\/wp-json\/wp\/v2\/pages\/56007"}],"wp:attachment":[{"href":"https:\/\/testsdmv.com\/vi\/wp-json\/wp\/v2\/media?parent=57356"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}