Advanced Rigging Test Questions with Complete Solutions Graded A+

  Using the following diagram, how many feet of conductor is supported by the insulator at the top of pole 2? - Answer: 300 feet Using the following diagram, if the conductor weighs 0.655 pounds per foot, what is the weight exerted by the conductor on the insulator at the top of pole 2? - Answer: Approximately 197 pounds True/False A pole is an example of a static force load. - Answer: True, static "STABLE" The weight exerted by a ________ force load will vary according to different conditions. - Answer: Dynamic "different" True/False A transformer is an example of a dynamic force load. - Answer: False, static force load True/False Bisect tension can only be determined for a corner pole that has conductor spans of equal length on either side. - Answer: False In the illustration that follows, what is the total tension exerted along the bisect line if the conductor weighs .655 pounds per foot, both spans are 250 feet long with a sag of 6 feet, and the length of the bisect line, P-T, is 61 feet? - Answer: Approximately 1,040 pounds The pulling force of a conductor as it tends to pull a pole or structure in line with adjacent poles or structures is called ________ tension. - Answer: Bisect What is the line tension in span A if the conductor weighs .655 pounds per foot, the span length is 300 feet, and the sag is 6 feet? - Answer: Approximately 1,228 pounds True/False The line tension in span B is the same as the line tension in span A - Answer: True Use the following illustration, if the conductor weight is .290 pounds per foot, what is the conductor weight exerted on the insulator on pole 2? - Answer: 87 Pounds Using the following illustration, what is the weight exerted by the conductor when it has been lifted to the maximum height permissible? - Answer: 174 pounds The line tension exerted by the conductor is _________ pounds (rounded off) - Answer: 544 When conductors are moved to a taller pole, the weight exerted by the conductors will ________. - Answer: Increase True/False The maximum conductor lift possible, without applying undue strain to the tie wires at the adjacent poles, occurs when the lowest point of conductor sag is right at the adjacent poles. - Answer: True How much guy tension is required for a guy to offset 190 pounds of bisect tension if the guy wire is 60 feet long and is connected to an anchor that is 40 feet away from the base of a pole? - Answer: 285 Pounds What is the guy tension needed to offset 1,092 pounds of bisect tension exerted by a conductor 50 feet above ground when the guy wire is 65 feet long and is anchored 40 feet from the base of the pole? - Answer: Approximately 1,774.5 pounds True/False Guy tension is the tension exerted by guy wires to offset line tension or bisect tension. - Answer: True What is the safety factor for a job in which a rope with a capacity of 10,000 pounds is being used to lift a 2,000 pound load? - Answer: 5 True/False For rigging, the minimum safety factor recommended is 10. - Answer: False