IEC 2nd Year Questions with well explained answers

Where an air conditioning unit is installed on the roof of a school, a convenience receptacle ________. - Must be installed on the same level and within 25 feet of the unit The water pump motor for a coin-operated car wash would be considered to be a ______ load. - noncontinuous Which of the following installations are not covered by the NEC? -Reliant/HL&P power lines and equipment located in property easemenets along streets -Sprint towers used for cell phone signal transmission -Bolivar ferry boats -Southwest Airlines jets such as 737,s - none of these Is it permitted by the NEC to install a 40-amp receptacle on a circuit protected by a 50-A circuit breaker? Y/N - No A continuous load is any load that operates for _______. - 3 hours or more Improper electrical terminations lead to incresed_______. -Voltage dropped across the terminations -circut resistance -circuit curent - 1 and 2 only Which of the following conductor materials are recognized by the NEC? -Copper -copper-clad aluminum -aluminum - all of these