{"id":6274,"date":"2024-04-15T02:26:22","date_gmt":"2024-04-15T02:26:22","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=6274"},"modified":"2024-04-15T02:26:22","modified_gmt":"2024-04-15T02:26:22","slug":"during-percussion-drilling-a-ground-water-observations-are-hindered-due-to-entry-of-the-slurry-in-the-soil-below-the-bottom-of-the-hole-b-caving-or-mixing-of-strata-are-caused-in-soft-soils-or-cohes","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/during-percussion-drilling-a-ground-water-observations-are-hindered-due-to-entry-of-the-slurry-in-the-soil-below-the-bottom-of-the-hole-b-caving-or-mixing-of-strata-are-caused-in-soft-soils-or-cohes\/","title":{"rendered":"During percussion drilling A. Ground water observations are hindered due to entry of the slurry in the soil below the bottom of the hole B. Caving or mixing of strata are caused in soft soils or cohesion-less soils C. The soil to a considerable depth below the bottom of the hole gets disturbed D. All the above"},"content":{"rendered":"<p>[amp_mcq option1=&#8221;Ground water observations are hindered due to entry of the slurry in the soil below the bottom of the hole&#8221; option2=&#8221;Caving or mixing of strata are caused in soft soils or cohesion-less soils&#8221; option3=&#8221;The soil to a considerable depth below the bottom of the hole gets disturbed&#8221; option4=&#8221;All the above&#8221; correct=&#8221;option4&#8243;]<!--more--><\/p>\n<p>The correct answer is D. All of the above.<\/p>\n<p>During percussion drilling, a rotating bit is used to break up the soil and rock. The broken material is then removed from the hole using a bailer or airlift. This process can cause a number of problems, including:<\/p>\n<ul>\n<li>Groundwater observations are hindered due to the entry of the slurry in the soil below the bottom of the hole. The slurry is a mixture of water, soil, and rock particles that is used to lubricate the bit and remove the broken material from the hole. The slurry can enter the soil below the bottom of the hole and make it difficult to determine the groundwater level.<\/li>\n<li>Caving or mixing of strata are caused in soft soils or cohesion-less soils. When the bit breaks up the soil, it can cause the soil to collapse or mix with the underlying strata. This can make it difficult to maintain the stability of the hole and can also create problems for subsequent construction activities.<\/li>\n<li>The soil to a considerable depth below the bottom of the hole gets disturbed. The percussion drilling process can disturb the soil to a considerable depth below the bottom of the hole. This can cause problems for subsequent construction activities, as the disturbed soil may not be able to support the weight of the structure.<\/li>\n<\/ul>\n<p>In order to minimize these problems, it is important to use proper drilling techniques and to take appropriate precautions. For example, it is important to use a slurry that is compatible with the soil type and to monitor the groundwater level during drilling. It is also important to take steps to stabilize the hole, such as using casing or grout.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>[amp_mcq option1=&#8221;Ground water observations are hindered due to entry of the slurry in the soil below the bottom of the hole&#8221; option2=&#8221;Caving or mixing of strata are caused in soft soils or cohesion-less soils&#8221; option3=&#8221;The soil to a considerable depth below the bottom of the hole gets disturbed&#8221; option4=&#8221;All the above&#8221; correct=&#8221;option4&#8243;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[643],"tags":[],"class_list":["post-6274","post","type-post","status-publish","format-standard","hentry","category-building-construction","no-featured-image-padding"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.2 (Yoast SEO v23.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>During percussion drilling A. Ground water observations are hindered due to entry of the slurry in the soil below the bottom of the hole B. Caving or mixing of strata are caused in soft soils or cohesion-less soils C. The soil to a considerable depth below the bottom of the hole gets disturbed D. All the above<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/exam.pscnotes.com\/mcq\/during-percussion-drilling-a-ground-water-observations-are-hindered-due-to-entry-of-the-slurry-in-the-soil-below-the-bottom-of-the-hole-b-caving-or-mixing-of-strata-are-caused-in-soft-soils-or-cohes\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"During percussion drilling A. Ground water observations are hindered due to entry of the slurry in the soil below the bottom of the hole B. Caving or mixing of strata are caused in soft soils or cohesion-less soils C. The soil to a considerable depth below the bottom of the hole gets disturbed D. All the above\" \/>\n<meta property=\"og:description\" content=\"[amp_mcq option1=&#8221;Ground water observations are hindered due to entry of the slurry in the soil below the bottom of the hole&#8221; option2=&#8221;Caving or mixing of strata are caused in soft soils or cohesion-less soils&#8221; option3=&#8221;The soil to a considerable depth below the bottom of the hole gets disturbed&#8221; option4=&#8221;All the above&#8221; correct=&#8221;option4&#8243;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/during-percussion-drilling-a-ground-water-observations-are-hindered-due-to-entry-of-the-slurry-in-the-soil-below-the-bottom-of-the-hole-b-caving-or-mixing-of-strata-are-caused-in-soft-soils-or-cohes\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2024-04-15T02:26:22+00:00\" \/>\n<meta name=\"author\" content=\"rawan239\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"rawan239\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"During percussion drilling A. Ground water observations are hindered due to entry of the slurry in the soil below the bottom of the hole B. Caving or mixing of strata are caused in soft soils or cohesion-less soils C. The soil to a considerable depth below the bottom of the hole gets disturbed D. All the above","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/exam.pscnotes.com\/mcq\/during-percussion-drilling-a-ground-water-observations-are-hindered-due-to-entry-of-the-slurry-in-the-soil-below-the-bottom-of-the-hole-b-caving-or-mixing-of-strata-are-caused-in-soft-soils-or-cohes\/","og_locale":"en_US","og_type":"article","og_title":"During percussion drilling A. Ground water observations are hindered due to entry of the slurry in the soil below the bottom of the hole B. Caving or mixing of strata are caused in soft soils or cohesion-less soils C. The soil to a considerable depth below the bottom of the hole gets disturbed D. All the above","og_description":"[amp_mcq option1=&#8221;Ground water observations are hindered due to entry of the slurry in the soil below the bottom of the hole&#8221; option2=&#8221;Caving or mixing of strata are caused in soft soils or cohesion-less soils&#8221; option3=&#8221;The soil to a considerable depth below the bottom of the hole gets disturbed&#8221; option4=&#8221;All the above&#8221; correct=&#8221;option4&#8243;]","og_url":"https:\/\/exam.pscnotes.com\/mcq\/during-percussion-drilling-a-ground-water-observations-are-hindered-due-to-entry-of-the-slurry-in-the-soil-below-the-bottom-of-the-hole-b-caving-or-mixing-of-strata-are-caused-in-soft-soils-or-cohes\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2024-04-15T02:26:22+00:00","author":"rawan239","twitter_card":"summary_large_image","twitter_misc":{"Written by":"rawan239","Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/exam.pscnotes.com\/mcq\/during-percussion-drilling-a-ground-water-observations-are-hindered-due-to-entry-of-the-slurry-in-the-soil-below-the-bottom-of-the-hole-b-caving-or-mixing-of-strata-are-caused-in-soft-soils-or-cohes\/","url":"https:\/\/exam.pscnotes.com\/mcq\/during-percussion-drilling-a-ground-water-observations-are-hindered-due-to-entry-of-the-slurry-in-the-soil-below-the-bottom-of-the-hole-b-caving-or-mixing-of-strata-are-caused-in-soft-soils-or-cohes\/","name":"During percussion drilling A. 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