{"id":2864,"date":"2026-04-22T21:10:58","date_gmt":"2026-04-22T15:40:58","guid":{"rendered":"https:\/\/lotusarise.com\/qna\/?p=2864"},"modified":"2026-04-22T21:11:01","modified_gmt":"2026-04-22T15:41:01","slug":"with-reference-to-unmanned-aerial-vehicles-uavs-consider-the-following-statements","status":"publish","type":"post","link":"https:\/\/lotusarise.com\/qna\/upsc\/prelims\/with-reference-to-unmanned-aerial-vehicles-uavs-consider-the-following-statements","title":{"rendered":"With reference to Unmanned Aerial Vehicles (UAVs), consider the following statements:"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">I. All types of UAVs can do vertical landing.&nbsp;&nbsp;&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">II. All types of UAVs can do automated hovering.&nbsp;&nbsp;&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">III.All types of UAVs can use battery only as a source of power supply.&nbsp;&nbsp;&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">How many of the statements given above are&nbsp;<strong>correct<\/strong>?&nbsp;&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list mcq\">\n<li>Only one\u00a0\u00a0\u00a0\u00a0<\/li>\n\n\n\n<li>Only two\u00a0\u00a0<\/li>\n\n\n\n<li>All the three\u00a0\u00a0\u00a0<\/li>\n\n\n\n<li>None\u00a0<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>Answer: (d) None&nbsp;<\/strong><\/p>\n<\/blockquote>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"unmanned-aerial-vehicles-uavs\">Unmanned Aerial Vehicles (UAVs)<\/h5>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Unmanned Aerial Vehicles (UAVs), commonly\u00a0<strong>known as drones, are\u00a0aircraft without onboard human pilots, operating remotely or autonomously via onboard computers<\/strong>.<\/li>\n\n\n\n<li>Ranging from small tactical devices to large, high-altitude systems, they provide cost-effective, agile solutions for\u00a0<strong>military surveillance, agriculture, infrastructure inspection, and logistics<\/strong>.<\/li>\n\n\n\n<li><strong>Key Aspects of UAV Technology:<\/strong>\n<ul class=\"wp-block-list\">\n<li><strong>Types:<\/strong>\u00a0UAVs are broadly classified into\u00a0<strong>fixed-wing<\/strong>\u00a0(for long-range, high-speed, or long-endurance missions) and\u00a0<strong>rotary-wing<\/strong>\u00a0(or multicopter, for vertical takeoff\/landing and hovering).<\/li>\n\n\n\n<li><strong>Operation:<\/strong>\u00a0They operate via pre-programmed flight plans or direct remote control.<\/li>\n\n\n\n<li><strong>Components:<\/strong>\u00a0Modern UAVs are increasingly integrating AI for enhanced navigation and object detection.<\/li>\n\n\n\n<li><strong>Military Use:<\/strong>\u00a0They play a critical role in modern warfare for reconnaissance, surveillance, and target acquisition (e.g., RQ-4 Global Hawk, Heron).<\/li>\n\n\n\n<li><strong>Civilian\/Commercial Use:<\/strong>\u00a0They are used for agricultural mapping, inspecting critical infrastructure, aerial photography, and last-mile delivery.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Common Applications:<\/strong>\n<ul class=\"wp-block-list\">\n<li><strong>Defense &amp; Security:<\/strong>\u00a0Border patrol, tactical battlefield intelligence.<\/li>\n\n\n\n<li><strong>Agriculture:<\/strong>\u00a0Crop monitoring, pesticide spraying.<\/li>\n\n\n\n<li><strong>Logistics:<\/strong>\u00a0Delivering goods, medical supplies.<\/li>\n\n\n\n<li><strong>Disaster Management:<\/strong>\u00a0Real-time damage assessment.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Vertical Landing and Take-Off:<\/strong>\n<ul class=\"wp-block-list\">\n<li>A type of drone known as a\u00a0<strong>fixed-wing drone<\/strong>\u00a0is an aerial vehicle that utilises rigid wings, a fuselage, tails, a propeller, and a motor to cover long distances at high speeds. Unlike other drones,\u00a0<strong>they cannot hover or land at specific points, requiring a runway or a net for landing.<\/strong>\u00a0Thus, all drones (for example, fixed-wing drones) cannot do vertical landing.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Automated Hovering:<\/strong>\n<ul class=\"wp-block-list\">\n<li>Again, unlike other drones,\u00a0<strong>traditional fixed-wing drones cannot hover or land at specific points<\/strong>, requiring a runway or a net for landing.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Battery Usage:<\/strong>\n<ul class=\"wp-block-list\">\n<li>UAVs come in many configurations, including: Multirotors (e.g., quadcopters), Fixed-wing UAVs, Hybrid VTOLs, High-endurance military UAVs (e.g., Predator drones).<\/li>\n\n\n\n<li><strong>Many of these cannot rely solely on batteries due to power and endurance limitations.<\/strong>\u00a0The energy density of batteries is lower than that of fuel. For long-range UAVs, especially fixed-wing or military UAVs, batteries cannot provide sufficient power or duration.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>I. All types of UAVs can do vertical landing.&nbsp;&nbsp;&nbsp; II. All types of UAVs can do automated hovering.&nbsp;&nbsp;&nbsp; III.All types of UAVs can use battery only as a source of power supply.&nbsp;&nbsp;&nbsp; How many of the statements given above are&nbsp;correct?&nbsp;&nbsp; Answer: (d) None&nbsp; Unmanned Aerial Vehicles (UAVs)<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"categories":[3,1],"tags":[44],"years":[63],"class_list":["post-2864","post","type-post","status-publish","format-standard","hentry","category-prelims","category-upsc","tag-science-and-tech","years-63"],"acf":[],"taxonomy_info":{"category":[{"value":3,"label":"Prelims"},{"value":1,"label":"UPSC"}],"post_tag":[{"value":44,"label":"Science and Tech"}],"years":[{"value":63,"label":"2025"}]},"featured_image_src_large":false,"author_info":{"display_name":"LotusArise","author_link":"https:\/\/lotusarise.com\/qna\/author\/team-lotusarise"},"comment_info":0,"category_info":[{"term_id":3,"name":"Prelims","slug":"prelims","term_group":0,"term_taxonomy_id":3,"taxonomy":"category","description":"","parent":1,"count":1251,"filter":"raw","cat_ID":3,"category_count":1251,"category_description":"","cat_name":"Prelims","category_nicename":"prelims","category_parent":1},{"term_id":1,"name":"UPSC","slug":"upsc","term_group":0,"term_taxonomy_id":1,"taxonomy":"category","description":"","parent":0,"count":1269,"filter":"raw","cat_ID":1,"category_count":1269,"category_description":"","cat_name":"UPSC","category_nicename":"upsc","category_parent":0}],"tag_info":[{"term_id":44,"name":"Science and Tech","slug":"science-and-tech","term_group":0,"term_taxonomy_id":44,"taxonomy":"post_tag","description":"","parent":0,"count":167,"filter":"raw"}],"_links":{"self":[{"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/posts\/2864","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/comments?post=2864"}],"version-history":[{"count":0,"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/posts\/2864\/revisions"}],"wp:attachment":[{"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/media?parent=2864"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/categories?post=2864"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/tags?post=2864"},{"taxonomy":"years","embeddable":true,"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/years?post=2864"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}