CWEA E/I 2 STUDY GUIDE QUEST|UPDATED&VERIFIED|1005 SOLVED|GUARANTEED SUCCESS

Receiving job instruction and planning equipment use are part of: a. craft data. b. job preparation. c. work factors. d. leveled time. b. job preparation Anticipating other tasks or problems: a. usually creates additional problems. b. wastes time. c. sharply reduces the number of emergencies. d. often is not worth the effort. c sharply reduces the number of emergencies Making job planning a group effort: a. wastes time. b. improves productivity. c. causes confusion. d. All the above b improves productivity Rubber safety gloves should be tested how often? a Every 12 months b. Every 9 months c. Every 6 months d. Every 4 months a Every 12 months Rubber safety blankets should be tested how often? a. Every 6 months b. Every 9 months c. Every 12 months d. Every 18 months b Every 9 months What is the interrupting current of a GFIC receptacle? a. 20 VAL b. 5 MA c. 10 UDL d. 20 MA b 5 MA What type of stepladder is forbidden while working on electrical equipment? a. Wood b. Fiberglass c. Aluminum d. Ceramic c Aluminum What is the killer of electrical shock? a. Voltage b. Current c. Resistance d. Ohms b Current The relationship between an electric current and a magnetic field is called: a. matter. b. atoms. c. electromagnetism. d. element c electromagnetism Electrons flowing from one place to another make a: a. current. b. track. c. circuit. d. channel a current Between two objects, the development of static charges creates a: a. potential difference. b. battery. c. thermocouple. d. resistance a potential difference A coil of wire that carries an electric current is called a: a. conductor. b. thermocouple. c. electrocurrent. d. electromagnet d electromagnet Metals are good conductors because they have many: a. insulators. b. free electrons. c. resistors. d. inductors. b free electrons The amount of potential difference a layer of insulation can withstand without breaking down is: a. resistance. b. voltage drop. c. dielectric strength. d. ampacity c dielectric strength What is the property of a coil of wire that opposes any change in the current in the coil? a. Inductance b. Resistance c. Impedance d. Watts a Inductance What is the correct name for "voltage" or electromotive force? a. Element b. Electron c. Circuit d. Potential difference d Potential difference A rate of flow of one coulomb per second is called one: a. ampere. b. joule. c. volt. d. olhum. a ampere What is the name for the proportional relationship between potential difference and current? a. Voltage drop b. Voltmeter c. Ampmeter d. Watt meter b Voltmeter What is the unit of measurement for capacitive reactance? a. Volts b. Ohms c. Amps d. Power factor b Ohms Power companies use AC generators because AC can be sent over long distances: a. at high cost. b. at low cost. c. slower. d. faster. b at low cost What device changes alternating current to a different combination of voltage and current? a. Generator b. Capacitor c. Alternator d. Transformer d Transformer How does the power going into a transformer compare to the power coming out? a. Lower b. Equal c. Double d. Higher b Equal What changes continuously around the conductor when current changes continuousl in AC circuits? a. Voltage b. Current c. Magnetic field d. Amps c Magnetic field Wires and cables can be classified according to their: a. color. b. size. c. covering. d. shape. c covering. What kind of starter provides full-voltage starting? a. Across-the-line b. Synchronous start c. Reactor starter d. Reduced-voltage start a Across-the-line The choice between across-the-line starting and reduced-voltage starting depends in part on the size of the: a. starter. b. wire size. c. motor. d. breaker. c motor. The most important requirement for good maintenance of motor starters is: a. good record keeping. b. safety of personnel. c. proper lubrication. d. clean, dry insulation c proper lubrication A reversing starter reverses a three-phase motor by interchanging: a. main contacts. b. two of the line leads. c. all of the line leads. d. control voltage. b two of the line leads What kind of protection is provided in a manual across-the-line three-phase motor control? a. Overload protection only b. Ground-fault protection only c. Short-circuit protection only d. All of the above a Overload protection only Commonly used instead of fuses in industrial power distribution systems are: a. disconnects. b. motor starters. c. overcurrent relays. d. circuit breakers. d circuit breakers.