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310T //Exam //-//Electronical //and //Electrical
//Systems //Questions //With//Answers //
- //When //trouble //shooting //an //electrical //engine //or //transmission, //what //else //might //be //require? a. //Test //lamp b. //Break //out //box c. //Continuity //tester d. //Ohm //meter //- //CORRECT //ANSWERS(S)✔✔b. //break //out //box
- //An //electronically //equipped //vehicle //over //heats, //the //engine //fan //will //no //engage //upon //engine //ECM request. //What //is //likely //the //issue? a. //Relay //contacts //burnt b. //Open //in //the //relay c. //Solenoid //open-circuit d. //Solenoid //seized //- //CORRECT //ANSWERS(S)✔✔b. //open //in //the //relay
- //When //performing //a //test //on //the //stator, //there //is //"zero- ohms" //measured //between //the //windings end //and //the //stator //frame. //What //should //be //done? a. //Replace //the //stator b. //Re-solder //windings c. //Install //new //brushes d. //Increase //the //voltage //- //CORRECT //ANSWERS(S)✔✔a. //Replace //the //stator
- //Alternator //rings //are //pitted //but //can //be //repaired, //what //procedure //should //be //done? a. //Polish //with //a //crocus //cloth b. //Smooth //with //fine //sandpaper c. //Replace //slip //rings d. //Install //new //brushes //as-is //- //CORRECT //ANSWERS(S)✔✔a. //polish //for //a //crocus //cloth
- //What //procedure //should //be //followed //when //repairing //multiple //wires //within //a //short //section //of //a wiring //harness? a. //Twist //wires //together
d. //open //circuit //in //the //brake //light //circuit //- //CORRECT //ANSWERS(S)✔✔c. //Short //circuit //in //the //brake //light //circuit
- //What //is //the //correct //procedure //for //testing //the //pickup //coil //in //a //SI //engine? a. //Voltmeter b. //Test //light c. //Oscilloscope d. //Ohmmeter //- //CORRECT //ANSWERS(S)✔✔d. //Ohmmeter
- //In //order //to //properly //repair //wiring, //what //is //the //proper //procedure? a. //Solder //with //a //resin //core, //then //heat //shrink b. //Solder //with //an //acid //core, //then //heat //shrink c. //Butt //splice d. //Butt //connectors //- //CORRECT //ANSWERS(S)✔✔a. //Solder //with //a //resin //core, //then //heat //shrink
- //Alternator //output //is //low, //what //should //be //checked //first? a. //Voltage //regulator b. //Diode //trio
c. //Commutator d. //Slip //ring //- //CORRECT //ANSWERS(S)✔✔a. //Voltage //regulator
- //What //turns //the //three-phase //alternating //current //into //Direct //current //in //a //alternator? a. //Voltage //regulator b. //Slip //rings c. //Stator d. //Diode //trio //- //CORRECT //ANSWERS(S)✔✔d. //diode //trio
- //Upon //disassembly, //a //no-operating //starter //has //loose //solder //particles //escaping. //What //is //likely the //cause? a. //Over-speed b. //Low //battery //voltage c. //Defective //solenoid d. //Excessive //voltage //- //CORRECT //ANSWERS(S)✔✔b. //low //battery //voltage
b. //Allow //a //low //amperage //circuit //to //control //a //high //amperage //circuit c. //To //reduce //the //amount //of //diodes //within //the //circuit d. //To //increase //the //amount //of //resistance //in //a //circuit //- //CORRECT //ANSWERS(S)✔✔b. //Allow //a //low //amperage //circuit //to //control //a //high //amperage //circuit
- //A //vehicles //check //engine //light //illuminates //each //trip, //although //disappears //every //time //the //key //is turned //off. //How //could //you //properly //diagnose //this //engine? a. //Perform //a //road //test b. //Check //charging //system //out //put c. //Using //a //scan //tool, //or //a //PC //check //for //historic //fault //codes d. //Check //all //fuses //or //circuit //breakers //- //CORRECT //ANSWERS(S)✔✔c. //Using //a //scan //tool, //or //a //PC //check //for //historic //fault //codes
- //When //testing //the //stator //of //an //alternator, //a //reading //of //zero //ohms //would //indicate //what? a. //A //short //within //the //windings b. //An //open //within //the //windings
c. //A //good //circuit d. //A //failed //voltage //regulator //- //CORRECT //ANSWERS(S)✔✔a. //A //short //within //the //windings
- //The //purpose //of //a //diode //within //an //electrical //circuit //is? a. //To //regulate //the //voltage b. //To //provide //good //ground //connections c. //Provide //a //one //way //path d. //To //increase //amperage //- //CORRECT //ANSWERS(S)✔✔C. //Provide //a //one //way //path
- //When //testing //a //databus //backbone, //which //of //the //following //would //indicate //proper //wiring? a. //A //resistance //of // 60 //ohms b. //A // 100 //volt //supply c. //A // 24 //volt //supply d. //A //resistance //of // 120 //ohms //- //CORRECT //ANSWERS(S)✔✔a. //A //resistance //of // 60 //ohms
- //During //a //load //test, //the //battery //voltage //should //not //drop //below //what //voltage //when //the //battery
d. //A //cable //needing //a //replacement //- //CORRECT //ANSWERS(S)✔✔a. //A //properly //operating //ground //cable
- //How //is //the //ammeter //(DVOM) //connected //to //test //for //excessive //parasitic //drain? a. //In //series b. //In //parallel //- //CORRECT //ANSWERS(S)✔✔a. //In //series
- //What //connection //do //you //remove //first //before //load //testing //a //battery //bank? a. //Ground b. //Positive c. //All //cables //at //once d. //None //- //CORRECT //ANSWERS(S)✔✔a. //Ground
- //What //should //be //applied //to //the //stator //and //rotor //assembly? a. //Grease b. //Solvent c. //Di-electric //grease
d. //Nothing //- //CORRECT //ANSWERS(S)✔✔d. //Nothing
- //What //would //cause //a //starter //to //be //moving //in //and //out //when //engaged? a. //Pull //in //windings //are //open b. //Shift //fork //is //bent c. //Hold //in //windings //are //open d. //Overrunning //Clutch //is //seized //- //CORRECT //ANSWERS(S)✔✔c. //Hold //in //windings //are //open
- //What //is //the //proper //procedure //to //repair //a //battery //cable? a. //Cut, //strip, //crimp b. //Cut, //strip, //crimp, //solder c. //Cut, //crimp, //shrink d. //Cut, //butt //connector, //post //- //CORRECT //ANSWERS(S)✔✔b. //Cut, //strip, //crimp, //solder
- //What //is //the //proper //way //to //test //a //wheel //speed //sensor? a. //DMM //for //voltage //as //you //spin //the //wheel b. //DMM //for //resistance //as //you //spin //the //wheel
- //A //fuel //gauge //is //constantly //showing //full, //even //after //you //have //driven //a //reasonable //amount, //what could //be //the //cause? a. //Float //is //stuck //in //the //full //position b. //Low //resistance //in //the //fuel //sending //unit //circuit c. //Float //is //stuck //in //the //low //position d. //An //open //in //the //fuel //sending //unit //- //CORRECT //ANSWERS(S)✔✔a. //Float //is //stuck //in //the //full //position
- //What //shouldn't //you //do //while //programing //an //ECM? a. //Leave //the //vehicles //key //on b. //Use //a //PC //based //software c. //record //pre-existing //historic //fault //codes d. //Turn //off //the //ECM //- //CORRECT //ANSWERS(S)✔✔d. //Turn //off //the //ECM
- //When //load //testing //a //battery, //what //procedure //should //you //follow? a. //Make //sure //each //battery //cell //is //clear b. //Half //the //rated //CCA's //for // 15 //seconds c. //Half //the //rated //CCA'S //for // 30 //seconds
d. //Double //the //rated //CCA'S //for // 15 //seconds //- //CORRECT //ANSWERS(S)✔✔b. //Half //the //rated //CCA's //for // 15 //seconds
- //What //is //the //average //specific //gravity //of //a //healthy //battery //cell? a. //1. b. //1. c. //1. d. //1.200 //- //CORRECT //ANSWERS(S)✔✔A. //1.
- //What //is //the //final //step //after //repairing //an //ABS //sensor //wire? a. //Road //test b. //Record //service //data c. //Clear //fault //codes d. //Install //sensor //- //CORRECT //ANSWERS(S)✔✔b. //Record //service //data
- //Paint //located //between //the //battery //ground //terminal //and //frame //on //a //truck //would //likely //cause? a. //High //resistance //on //the //ground //side //of //the //starter //circuit
c. //Brush //wire //is //burnt //open d. //Alternator //belt //is //slipping //- //CORRECT //ANSWERS(S)✔✔d. //Alternator //belt //is //slipping 3 9. //The //voltage //regulator //controls //current //in //which //of //the //following //components? a. //Diode //trio b. //Field //coil //windings c. //Rectifier //bridge d. //Brushes //- //CORRECT //ANSWERS(S)✔✔b. //Field //coil //windings
- //If //an //alternator //provides //no //current //output, //however //provides //full //current //output //when //the alternator //is //full //fielded. //What //would //be //the //most //likely //cause? a. //Faulty //bushes b. //Bad //diode //trio c. //Failed //voltage //regulator d. //Failed //rotor //- //CORRECT //ANSWERS(S)✔✔c. //Failed //voltage //regulator
- //What //causes //an //alternator //to //start //producing //current //if //the //alternator //only //has //an //output wire? a. //Delta //windings b. //Wye //windings c. //Residual //magnetism d. //Force //from //the //motor //- //CORRECT //ANSWERS(S)✔✔c. //Residual //magnetism
- //A //rotor //can //be //bench //tested //for //which //of //the //following? a. //Current //output b. //Shorted //field //coil c. //Defective //voltage //regulator d. //A //short //in //stator //windings //- //CORRECT //ANSWERS(S)✔✔b. //Shorted //field //coil
- //One //bad //diode //in //a //rectifier //bridge //would //likely //cause //which //of //the //following? a. //Low //alternator //output b. //High //alternator //output
- //Which //of //the //following //would //be //an //acceptable //result //of //an //alternator //current //test //on //a // 200 amp //alternator? a. //150amps b. //100amps c. //210amps d. //190amps //- //CORRECT //ANSWERS(S)✔✔d. // 190 amps
- //When //checking //the //rectifier //bridge //in //an //alternator, //what //should //the //meter //be //set //to? a. //Ammeter b. //Ohmmeter c. //Voltmeter d. //Diode //check //- //CORRECT //ANSWERS(S)✔✔d. //Diode //check
- //When //testing //alternator //output. //why //should //the //amp- clamp //be //at //least // 6 //inches //away //from //the alternator? a. //So //that //the //meter //wont //over //heat b. //So //that //there //is //no //interference //between //magnetic //fields
c. //No //reason //just //practiced //that //way d. //Clamp //is //not //big //enough //to //go //directly //on //the //alternator //- //CORRECT //ANSWERS(S)✔✔b. //So //that //there //is //no //interference //between //magnetic //fields
- //What //is //the //recommended //tool //used //to //check //a //voltage //regulator? a. //Ohmmeter b. //Voltmeter c. //Test //light d. //Ammeter //- //CORRECT //ANSWERS(S)✔✔d. //ammeter
- //If //an //alternator //has //an //open //in //the //field //coil, //what //would //be //the //likely //result? a. //No //current //output b. //High //current //output c. //½ //the //current //output d. //Low //current //output //- //CORRECT //ANSWERS(S)✔✔a. //No //current //output
