CWEA Electrical and Instrument Grade 2 Study Guide Questions and answers, verified.

CWEA Electrical and Instrument Grade 2 Study Guide Questions and answers, verified. .15KvA transformer 480-120. How much amps can you pull on 120 side? - -1.25 amps 150/120=1.25 amp · When finding volume, the tank maybe 30' high but only filled to 14' read the question and make sure you are performing the formula as it pertains to the question. - -? 4-20 mA output for a device with a range of 0-63,535. Read is 6 mA. What is the measurement reading? - -6mA/20mA= 0.3, 0.3 x 63,535= 19,060.5 A 12V battery rated to provide 1amp for 20 hours across a 2000w load. How long will the battery continue to produce an output? - -A. 1 hour B. 10 hour C.*** 100 hour D. 1000 hour A 3 phase motor shows 15 FLA.(Full Load Amperes) You have readings of 15.6, 16.1 and 15.9, what is the condition of the motor? - -The motor is overloaded. A 3 phase motor with an FLA of 25 amps has these readings, A phase 26a, B phase 26.9a, C phase 27a. This motor is what? - -A. Overloaded B. Needs adjustment C. Fine D. Duty rated A 36" pipe has an elevation gain of 300', the process reaches an elevation of 200'. What is the PSI? - -Do Calculation A 480V, 3 phase motor, Delta connected, has one leg shorted, what will the resistance be compared to the other legs - -A. Greater *B. Lower C. Same D. Greater or lower A 500hp, 3 phase, 460v, 8-pole, 900 rpm motor is connected to a 5:1 gear box. What is the rpm of the output shaft? Forget about all the needless information. The question gives the rpm of the motor that's all you need. - -Do Calculations A commutator is found in what piece of equipment? - -DC motor A diaphragm type gauge protector is used in which type of environment? - -Corrosive A flow meter that uses a small hole in a plate to measure flow is a what? - -A. Venturi B. Orifice C. Magnetic D. Rotometer A molded case breaker is designed to protect against what? - -A. Overcurrent B. Overcurrent and short circuits C. Short circuits A pipe has a 10" opening , and produces 2500 GPM. How many cubic feet/sec? - -Do Calculations A resistor with the colors orange, orange/white, XXX, XXX, what is its value? Know your resistor color values. - -33 G ohms A reversing starter reverses a three-phase motor by interchanging: - -two of the line leads A signal that goes from - to + is called a what? - -A