RCDD CH9 POWER DISTRIBUTION EXAM REVIEW QUESTIONS AND ANSWERS. GRADED A+/[LATEST EXAM UPDATES]

RCDD CH9 POWER DISTRIBUTION EXAM REVIEW QUESTIONS AND ANSWERS. GRADED A+/ A - -Calculate the real power in watts needed to deliver 5 amperes of current in a 120 Volt ac circuit. The power factor for the circuit is 0.8. A - 480 W B - 600 W C - 750 W D - 900 W Page 9-13 B - -If the real power consumed by a load is 2000 W and the power factor is 0.8, how many tons of air conditioning is required to maintain ambient temperature in the space where the load is located? A - ≈ 0.3 tons B - ≈ 0.6 tons C - ≈ 0.75 tons D - ≈ 1 tons Page 9-13 A - -What type of fluctuation is caused by an increase in the nominal voltage or current lasting from 0.5 cycles to one minute? A - Swell B - Sag C - Overvoltage D - Transients/Surge Page 9-20 Table 9.3 A - -Which of the following is a method of connection for primary or secondary windings of a three-phase transformer bank in which similar ends of each phase winding are connected together at a common point, which forms the electrical neutral and is grounded (earthed) at the building grounding (earthing) electrode system? A - Wye B - Delta C - Split D - Monocyclic Page 9-3 A - -You are designing a system that requires an uninterruptible load transfer of small branch circuits. What type of transfer switch would be needed for this transfer requirement? A - Point of use switch B - Standalone transfer switch C - Integral isolation transformer and power PDU Page 9-54 D - -You have been asked to review specifications for the conductors and protection devices for a project. Upon calculating the information you notice that the feeder and branch circuits have been sized correctly to support the non continuous load plus: A - 25% of the continuous loa