NGWA –STUDY QUESTIONS - GENERAL DRILLING LATEST EXAM/ CORRECTLY ANSWERED QUESTIONS A+ GRADED

NGWA –STUDY QUESTIONS - GENERAL DRILLING LATEST EXAM/ CORRECTLY ANSWERED QUESTIONS A+ GRADED Artesian Pressure is generally... - Correct Answer ... a result of gravity and confining beds. What is true about the origin of rocks? - Correct Answer 1. Sandstones were once sand deposits and could have been river sand, beach sands, or dune sands. 2. Some limestones contain fossils because they were once the mucky bottoms of shallow seas. 3. Shales were once clay beds. Sedimentary formations may reach depths of a mile or more. (T/F) Ground water, like surface water, has a tendency to flow downhill. - Correct Answer True. The three main types of rock are... - Correct Answer ... igneous, sedimentary, and metamorphic. Water would be least likely found in what geological formation? - Correct Answer Granite. (T/F) More than 90% of our nation's fresh water is underground? - Correct Answer True. Prior to setting the rig, you should... - Correct Answer 1. Make sure there are no overhead power lines within at least 20' of the mast. 2. Locate all buried materials. 3. Verify you are on the right property and meet the correct setback requirements. Confined space entry rules require... - Correct Answer 1. Shoring of trench walls over 4' deep. 2. Establishment of buddy system. 3. Have driller's assistant check jacks as operator levels rig. In setting up and leveling the rig, the right procedure is to... - Correct Answer 1. Use suitable jack pads for stabilization. 2. Position rig for minimum leveling. 3. Have driller's assistant check jacks as operator levels rig.