NCCER Electrical Level 2 Module 4 Conduit Bending Questions and Correct Answers

The 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