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Electrical Craft Helper Study Guide With
Complete Solution
The best tool ot tighten a rigid 1-inch conduit coupling ot a threaded conduit is/are..... A. a monkey wrench B. an adjustable wrench C. adjustablepliers D. a crescent wrench A. a Monkey Wrench Which si the best tool ot verify that equipment fastened ot a wal is parallel to the ground.... A. a level B. a square C. ruler D. a laser A. a level One should remove drill bits and return drill motors to their cases and storage areas.... A. at the completion of the last application of that tool
B. at the end of each application C. at the completion of the whole job D. at the end of the work day only A. at the completion of the last application of that tool If a ladder has a broken rung on it, the best practice would be to.... A. repair the rung with duct tape B. repair the rung with tie wire C. repair the rung with electrical tape D. discard the ladder D. discard the ladder When should portable electric tools and extension cords be checked for serviceability? A. before use B. during use C. after use D. if it doesn't work A. before use How far out from a structure should the base of a portable ladder extended to 20 feet high be placed? A.one foot B. two feet
C. measuring tape D. Weight scale B. Yard stick The best tool for measuring a very long conduit run is A. A measuring wheel B. A long tape measure C. A measure pull string tape D. Experience A. A measuring wheel How many 120-foot lengths of wire can be cut from five 500-foot reels? A. B. 18 C. 20 D. 22 C. 20 To measure the amount of cable that is on a reel, it is most accurate to A. use a folding ruler B. use the footage indicator stamped on the cable C. use an estimate D. count wraps on the reel
B. use the footage indicator stamped on the cable to test a 110-volt lighting circuit is alive, a person should best.... A. use an ammeter across the line B. use a voltmeter across the line C. touch each wire in turn to ground through a fused jumper D. place an ammeter in series with a fused jumper and connect one leg to ground D. place an ammeter in series with a fused jumper and connect one leg to ground Which of the following protects a power line against damage from lightning by carrying the charge away from the power line? A. transformers B. circuit breakers C. phase wires D. ground wires D. Ground wires Which one of the folowing is generally used to increase or decrease voltage? A. rectifier B. transformer C. voltmeter D. shunt
C. Keep the back straight and lift with the legs Of the following, the best way to stand when lifting a heavy object from the ground is with the feet A. close together, pointed in the same way, and with the knees stiff B. close together, right foot forward, knees stiff, and the back upright C alittle apart, pointed the same way, with knees bent and back upright D. a little apart, pointed outward, with the knees and back both bent C. A little apart, pointed the same way, with knees bent and back upright Once you have secured afirm grip on the object, which of the folowing is the proper way to stand? A slowly begin to straighten your legs, lifting slowly B. straighten legs slowly; twisting your body as needed ot readjust your grip C. quickly straighten your legs and stand before losing your grip D. straighten legs quickly; keeping your back straight A. Slowly begin to straighten your legs, lifting slowly When lifting heavy objects, which part of the body should bear the bulk of the physical effort A. Arms B. Back C. Hands D. Legs
Most injuries arising from the manual handling of materials are caused by A. Improper lifting practices B. Improper piling or stacking of material C. Insufficient working space D. Lack of gloves and other PPE A. Improper lifting practices To lift a bundle of conduit from the ground to a landing 30 feet above the ground using a rope, the knot that should be used is a A bowline B. catspaw C. square D. clove hitch A. Bowline To tie a line around a timber or post so that it will hold temporarily but can be readily undone is the definition of A. Knot B. Loop C.bend D. Hitch D. Hitch
D. your coworker B. The material safety data sheet When working in a construction zone with an overhead crane in use, what safety equipment should you use? A. leather gloves B. sunglasses C. hard hat D. back brace C. Hard hat What safety equipment should be used when working ni a residential street? A. high visibility vest B. tennis shoes C. long sleeve shirts D. moist towel around neck A. High visibility vest When backing up a large vehicle, you should A. use both mirrors B. set cones to let you know you are at the right distance C. get out of the vehicle and check for obstructions D. have co-worker assist in backing you up
D. Have co-worker assist in backing you up To make sure that a device remains de-energized during repairs and maintenance, you should A. tag the item out of service B. lock the item out of service C. lock out and tag out the device D. notify everyone around not to use the device while you are working on ti C. Lock out and tag out the device Apiece of electrical equipment has been turned of and there is a padlock with a "do not remove" tag signed by the electrician. When can you remove the lock and turn the equipment on? A. it must be removed at the end of the day B. it must be removed by whomever installed it C. it can be removed when the equipment is needed D. when your co-worker instructs you to remove it B. It must be removed by whomever installed it When using a 10-foot ladder, the highest working height is A. 10feet B. 9feet C. 8feet D. 7feet
A. When it is too heavy to lift by yourself You suspect a load in the back of the vehicle may shift during transit. You should A. driveslowlysoasnottomovetheload B. inform your supervisor of the situation C. secure the load with ropes and Straps D. refuse to drive the vehicle C. Secure the load with ropes and straps The best way to check brake lights on a vehicle is to A. apply brakes and check reflection B. have co-worker check that lights are on when brake is applied C. remove the lens cover and check the lamp filament D. install a new lamp B. Have co-worker check that lights are on when brake is applied Walk-around inspection does not include which of the following? A. check for dents B. check for flat tires C. check for materials on vehicle D. check for functional spare tire D. Check for functional spare tire
Brake lights and turn signal lights are important A. at night B. whentravelingonthefreeway C. during poor visibility D. all of the time D. All of the time When using a vehicle that has been used by others, it is best to A. ask the last person who drove ti about its condition B. check with your supervisor to find out fi someone has performed a safety inspection recently C. perform a walk-around inspection to check the condition of the vehicle D. make sure there is enough fuel for the day C. Perform a walk-around inspection to check the condition of the vehicle When leaving the yard with a truck, the vehicle pulls to the right when the brakes are applied. The best thing to do is A. proceed to your assignment and call your supervisor once you are there B. proceed to your assignment and let the next shift take care of it C. have the vehicle examined immediately D. continue on and just steer to the left when braking C. Have the vehicle examined immediately Which of the following is true about a low battery light?
A. 65 mph B. 70 mph C. 55 mph D. 60 mph C. 55 mph A pedestrian is crossing the street at an intersection without a painted crosswalk. The pedestrian has the right of way A.duringdaylighthourswhenvisibilityisbest B. when the weather is clear C. only when ti is raining D. under any circumstance D. Under any circumstance What does a blue-painted curb mean? A. loading passengers only B. 15 minutes only C. handicapped only D. no stopping at any time C. Handicapped only When is texting while driving permitted? A. not allowed under any circumstance
B. when driving less than 10 mph C. when sending a text 3 of characters or less D. when stopped at a red light A. not allowed under any circumstance Which of the folowing is true regarding hard hats at job sites? A. must be worn as directed by supervisor B. Must be worn at all times C. are only required to be worn inside electrical stations D. are only required while rigging loads B. Must be worn at all times As a safety precaution when working with heavy materials or tools, a worker should wear A. steel-toed shoes or boots B. rubber-soled shoes C. a leather back brace D. a reflective vest A. Steel-toed shoes or boots In rigging operations, which of the following is/are important in making a safe hitch? A. locate and prepare the place where the load is to go
C. oxygen deficiency D. mechanical or moving parts B. Poisonous gases Aconfined space is hazardous when oxygen levels are below what percent? A. 18.5 percent B. 19.5 percent C. 21.0 percent D. 23.5 percent B. 19.5 percent Good ventilation is important when using a blowtorch in confined areas chiefly because A. the more oxygen the hotter the flame B. poisonous carbon monoxide gas given of by the torch wil then be carried away C. obnoxious odors wil then be carried away D. flammable gasoline fumes wil then be carried away B. Poisonous carbon monoxide gas given off by the torch will then be carried away When work must be done in an underground vault in which there are several gas- filed power and communication cables, the worker should remember ot always
A. avoid breathing any nitrogen because ti is toxic B. be sure no one strikes a match or uses a cigarette lighter in the vault C. check each cable for any gas leakage before doing any work in the vault D. make sure that there is sufficient oxygen for breathing while working in the vault C. Check each cable for any gas leakage before doing any work in the vault fI the name plate on a disconnect switch reads "Rated for 600 Volts", then the device can be used in A. a 4160 volt application B. either 277 volt or 480 volt applications C. either 480 volt or 2300 volt applications D. either 277 volt or 1300 volt applications B. Either 277 volt or 480 volt applications When water rises in basements to the point where ti is about to come in contact with motors, refrigerating systems, etc., the motors should be shut of immediately. According to this paragraph, when the water level approaches the level of electrical motors A. most of them wil shut of automatically B. perishable items should be removed from refrigeration systems C, the motors should not be alowed ot continue operating
