JOURNEYMAN CLOSED BOOK # 9 Exam 2024

JOURNEYMAN CLOSED BOOK # 9 Exam 2024 B -Answer-To control a ceiling light from five different locations it requires which of the following? a. Four 3-way switches and one 4-way switches b. Three 4-way switches and two 3-way switches c. Three 3-way switches and two 4-way switches d. Four 4-way switches and one 3-way switches C -Answer-The advantage of AC over DC includes which of the following? a. Better speed control b. Lower resistance at higher current c. Ease of voltage variation d. Impedance is greater B -Answer-Which of the following is considered the best electrical conductor? a. Iron wire b. Copper wire c. Aluminum wire d. Tin wire D -Answer-The liquid in a battery is called the _________. a. Askarel b. Festoon c. Hermetic d. Electrolyte A -Answer-A color coded is used in multiple-conductor cables. For 3-conductor cable the colors would be ________. a. One black, one red and one white b. Two black and one red c. One white, one black and one blue d. Two red and one black B -Answer-Explanatory material in the Code is characterized by _____________. a. The word "shall" b. FPN c. The word "may" d. The word "could" A -Answer-The identified grounded conductor of a lighting circuit is always connected to the screw of a light socket to _________. a. Reduce the possibility of accidental shock b. Ground the light fixture c. Improve the efficiency of the lamp d. Provide the easiest place to connect the wire D -Answer-A ___ box may be waterproof. a. Watertight b. Rainproof c. Raintight d. All of these A -Answer-The Code requires that all AC phase conductors where used, the neural and all equipment grounding conductors be grouped together when using metal enclosures or raceways. The principal reason for this is _________. a. Currents would circulate through individual raceways b. Less expensive to install a single raceway c. Less labor hours for pulling wires in a single raceway d. Conductors are easier to pull in a single raceway C -Answer-Installing more than three current carrying conductors in the same conduit requires ________. a. A larger conduit b. High heat rated conductors c. Derating of ampacity d. Continuous loading B -Answer-A ______ helps prevent arcing in movable contacts. a. Spring b. Condenser c. Resistor d. Hydrometer B -Answer-The ____ circuit is that portion of a wiring system prior to the final overcurrent protective device protecting the circuit. a. Service b. Feeder c. Power d. Branch D -Answer-When tightening a screw on a terminal, the end of the conductor should wrap around the screw in the same direction that you are turning the screw so that ___________. a. When you pull on the conductor it will tighten b. The screw will not become loose c. The conductor will act as a locking nut d. The conductor will not turn off D -Answer-Determining a positive wire on a single-phase circuit is _________. a. Possible with a wattmeter b. Possible with a voltmeter c. Possible with an ammeter d. An impossibility C -Answer-A________ is used for testing specific gravity. a. Thermocouple b. Megger c. Hydrometer d. Galvanometer C -Answer-An autotransformer differs from each other types of transformers in that ________. a. Its primary winding is always largest than its easier secondary winding b. It can be used only in automobiles c. Its primary and secondary winding are common to each other d. It must be wound with heavier wire A -Answer-Where the _____ is likely to be high, asbestos insulation on the conductor would be a good choice. a. Temperature b. Humidity c. Voltage d. Amperage A -Answer-If the end of a cartridge fuse becomes warmer than normal, you should _________. a. Tighten the fuse clips b. Lower the voltage on the circuit c. Notify the utility company d. Change the fuse C -Answer-Which of the following is the poorest conductor of electricity? a. Mercury b. Aluminum c. Carbon d. Silver C -Answer-The primary winding of a loaded step-down transformer has ____compared to the secondary winding. a. Lower voltage and current b. Higher voltage and current c. Higher voltage and lower the current d. Lower voltage and higher current B -Answer-Copper is used for the tip of a soldering iron because _________