NCCER Electrical Level 2 Module 4 Conduit Bending correctly answered graded A+

NCCER Electrical Level 2 Module 4 Conduit BendingThe minimum bending radius for 3" rigid conduit is _____. 13" The minimum bending radius for 1/2" rigid conduit is _____. 4" The maximum number of 90° bends allowed between pull points in a conduit system is ______. four A saddle bend is counted as ____. 60°-180°, depending on the type of bends When referring to the two bends required to make an offset in a length of conduit, which of the following is always true? The degree of bend for each must be equal. The reason for making a saddle bend in a run of conduit is to _____. cross a small obstacle Which of the following formulas should be used to find the side adjacent? C = A ÷ H The equation used to calculate the circumference of a circle is ____. C = 2πR The fractional equivalent of the decimal 0.015625 is ____. 1/64 Two or more parallel bends that are bent in the same direction are known as ____. concentric bends You are making a concentric bend and the radius of the first pipe is 16", the OD of the first pipe is 2", and the spacing between pipes is 3". What is the radius of the second pipe? 21" You are making a 20" offset with two 30° bends. The distance between bends is ____. 40" A saddle to cross a pipe requires ____. Three bends An important safety precaution to use when working with PVC conduit is to _____. Provide proper ventilation to carry off fumes from the joint cement To prevent flattening when bending larger diameter PVC pipe, use _____. plugs and air pressure Which chapter of the NEC will you find the installation requirements for conduit? Chapter Three The maximum number of degrees allowed between pull points in a conduit run is ____. 360° Offsets and saddles ___________. must be included when calculating total degrees between pull points A conduit run with _____ is acceptable to pull wire. two 90° bends, two 45° bends, and two 30° bends Would 4" rigid metal conduit be bent using a mechanical bender? No (hydraulic bender) The maximum size IMC that can be bent using a portable mechanical conduit bender is _____. 1 -1/4" on 2" The code requires a minimum radius for rigid conduit bends because when bends are too tight,____. pulling wire becomes hard A bend used for a change in direction of less than 90° is called a(n)_____. kick A mechanical bender may be used to make bends in ______. 2" EMT To make matching bends in both 1/2" and 1" IMC when using a mechanical bender,______. use the 1" shoe for both conduits Speed benders can bend conduit up to ______. 1/2" to 2" True or False? The one-shot shoes used with hydraulic benders can make a 90° bend in a single operation. True One method of bending segments is to use ___________. an elapsed time method to keep track of each bend Airtight plugs are installed in the ends of large sizes of PVC conduit during bending to ______. prevent the conduit from wrinkling or flattening the bend A disadvantage of aluminum conduit is that ______. it is difficult to bend consistently and accurately The minimum radius for 3 -1/2" conduit using one-shot bender is ____. 15" The minimum radius for MD 91 conduit using one-shot bender is ____. 381 mm The type of bend required where conduit enters a panelboard is most likely a(n) ____. offset When applying right-angle mathematics to conduit bends, the distance between bends is represented by the triangle's ____. hypotenuse The gain for a 90° bend with a 6" radius is ___. 2.58" (0.4292*6"=2.58)