JOURNEYMAN CLOSED BOOK # 6 Exam

JOURNEYMAN CLOSED BOOK # 6 Exam D -Answer-Something that would affect the ampacity of a conductor would be __________. I. Voltage II. Amperage III. Length IV. Temperature a. I only b. II only c. III only d. IV only B -Answer-Alternating currents may be increased or decreased by means of a __________. a. Motor b. Transformer c. Dynamo d. Megger D -Answer-Fixtures supported by the framing members of suspended ceiling systems shall be securely fastened to the ceiling framing member by mechanical means such as __________. I. Bolts or screws II. Rivets III. Clips identified for this use. a. I only b. II only c. III only d. I, II & III D -Answer-Which has the highest electrical resistance? a. Brass b. Iron c. Water d. Paper B -Answer-Conductor sizes are expressed __________. a. Only in circular mils b. In AWG or in circular mils c. In diameter or area d. In AWG or millimeters C -Answer-Of the following, which is not a type of file? a. Half-round b. Bastard c. Tubular d. Mill C -Answer-Oil is used in many large transformers to __________. a. Prevent breakdown due to friction b. Lubricate the core c. Cool and insulate the transformer d. Lubricate the coils C -Answer-Fractional horsepower universal motors have brushes usually made of __________. a. Copper strands b. Mica c. Carbon d. Thin wire rings B -Answer-When administering first aid to a worker suffering from fright as a result of falling from a ladder, the most important thing to do is ______________. a. Position the person to a sitting position. b. Cover the person and keep the person warm. c. Apply artificial respiratory immediately. d. Check the rungs of the ladder. C -Answer-If a co-worker is burned by acid from a storage battery, the proper first aid treatment is to wash with _______. a. Iodine and leave it open to the air b. Vinegar and apply a wet dressing c. Water and apply Vaseline d. Lye and apply a dry bandage D -Answer-A type of motor that will not operate on DC is the ___________. a. Series b. Short shunt c. Long shunt compound d. Squirrel cage A -Answer-Receptacles installed on ____ ampere branch circuits shall be of the grounding type. a. 15 and 20 b. 25 c. 30 d. 40 D -Answer-Where conductors carrying alternating current are installed in metal enclosures or metal raceways, they shall be so arranged as to avoid heating the surrounding metal by induction, to accomplish this _____ shall be grouped together. I. All phase conductors II. Where used the neutral III. All equipment grounding conductors a. I only b. I & II only c. I & III only d. I, II & III D -Answer-A (an) __________ changes AC to DC. a. Battery b. Capacitor c. Alternator d. Rectifier D -Answer-A steel measuring tape is undesirable for use around electrical equipment. The least important reason is the ____________. a. Danger of entanglement in rotating machines b. Shock hazard c. Short circuit hazard d. Magnetic effect D -Answer-________ is the ability of a