Flexible metal conduit (FMC) is a raceway of circular cross section made of ____. Select one: A. INTERLOCKING METAL AND PVC CONGLOMERATE B. PVC LAMINATED STEEL C. HELICALLY WOUND, FORMED, AND INTERLOCKED METAL STRIP D. CONCENTRICALLY WOUND ALUMINUM ALLOY

15. Which of the following conductors in a typical separable connection plug and receptacle has a firstmake, last-break feature?A. The neutral grounded conductorB. The equipment grounding conductorC. A center wye conductorD. The grounded delta conductor

A 112.5 kva, 480v primary to 120/240v secondary, three-phase transformer with a 300 amp secondary overcurrent device will require at least _______ size secondary conductors   a. 750 kcmil   b. 300 kcmil   c. 500 kcmil   d. 350 kcmil

The single line diagram of a power system is shown in Figure Q2.1 including generator and transformer winding connection and earthing details. The parameters for this system have been calculated on a common 100 MVA base and are given in Table Q2.1. All resistances and shunt susceptances are neglected. This system experiences a single line to ground fault at a point F on line L1. The point F is at a distance d from Bus 4 along the line L1. The total length ?? of the line L1 is 50 km. Note that the location of ?? is not drawn to scale in Figure Q2.1. The fault current at the fault point F is measured to be 6.106 kA. i) Determine the zero, positive, and negative sequence Thevenin equivalent impedances as seen at the fault point F. These should be evaluated in per unit and shown as a function of d.ii) Use the sequence impedances calculated in part (i) to determine the distance d of the fault (in km) from Bus 4.