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310T Exam Electronical And Electrical Systems With Correctly Detailed Solutions Graded A+, Exams of Electronics engineering

Rasmussen College - IllinoisElectronics engineering

310T Exam Electronical And Electrical Systems With Correctly Detailed Solutions Graded A+ latest 2025

Typology: Exams

2024/2025

Available from 07/06/2025

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310T Exam Electronical And Electrical
Systems With Correctly Detailed Solutions
Graded A+ Latest 2025
1. 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 answer.b. break out box
2. 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 answer.b. open in the relay
3. 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 answer.a. Replace the stator
4. 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 answer.a. polish for a crocus cloth
5. What procedure should be followed when repairing multiple wires within a short
section of a
wiring harness?
a. Twist wires together
b. Twist and tape connections
c. Solder wires in parallel
pf3
pf4
pf5
pf8
pf9
pfa
pfd
pfe
pff
pf12

Partial preview of the text

Download 310T Exam Electronical And Electrical Systems With Correctly Detailed Solutions Graded A+ and more Exams Electronics engineering in PDF only on Docsity!

310T Exam Electronical And Electrical

Systems With Correctly Detailed Solutions

Graded A+ Latest 2025

  1. 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 answer.b. break out box
  2. 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 answer.b. open in the relay
  3. 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 answer.a. Replace the stator
  4. 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 answer.a. polish for a crocus cloth
  5. What procedure should be followed when repairing multiple wires within a short section of a wiring harness? a. Twist wires together b. Twist and tape connections c. Solder wires in parallel

d. Stagger splices, solder and tape - correct answer.d. Stagger splices, solder and tape

  1. When the brakes are applied, the trailer clearance lights become dim and flicker, what is the likely cause? a. Light switch overload b. High resistance in the tail light assembly c. Short circuit at the trailer connector d. Incorrect supply voltage - correct answer.c. Short circuit at the trailer connector
  2. Cruise control functions fine during the day time, once the running lights are on, cruise control fails to function. What is the likely cause? a. Faulty switch b. High resistance in the trailer plug c. Short circuit in the brake light circuit d. open circuit in the brake light circuit - correct answer.c. Short circuit in the brake light circuit
  3. What is the correct procedure for testing the pickup coil in a SI engine? a. Voltmeter b. Test light c. Oscilloscope d. Ohmmeter - correct answer.d. Ohmmeter
  4. 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 answer.a. Solder with a resin core, then heat shrink
  5. Alternator output is low, what should be checked first? a. Voltage regulator b. Diode trio c. Commutator d. Slip ring - correct answer.a. Voltage regulator
  6. 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 answer.d. diode trio
  7. Upon disassembly, a no-operating starter has loose solder particles escaping. What is likely the cause?

c. Provide a one way path d. To increase amperage - correct answer.C. Provide a one way path

  1. 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 answer.a. A resistance of 60 ohms
  2. During a load test, the battery voltage should not drop below what voltage when the battery temperature is 70 degrees Fahrenheit? a. 12.7v b. 9.0v c. 10.2v d. 9.6v - correct answer.D. 9.6v
  3. If a truck trailer combination had all the trailer lights flickering while running down the road but the truck lights worked normally, what would be the cause? a. Open ground in the trailer cord b. A break in the yellow wire in the trailer cord c. Wrong fuse installed d. Bad tail light ground - correct answer.a. Open ground in the trailer cord
  4. A voltage drop reading of 0.1 volts on the ground side of a starter circuit could indicate? a. A properly operating ground cable b. A open ground cable c. High resistance inside the ground cable d. A cable needing a replacement - correct answer.a. A properly operating ground cable
  5. How is the ammeter (DVOM) connected to test for excessive parasitic drain? a. In series b. In parallel - correct answer.a. In series
  6. What connection do you remove first before load testing a battery bank? a. Ground b. Positive c. All cables at once d. None - correct answer.a. Ground
  7. What should be applied to the stator and rotor assembly? a. Grease b. Solvent

c. Di-electric grease d. Nothing - correct answer.d. Nothing

  1. 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 answer.c. Hold in windings are open
  2. 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 answer.b. Cut, strip, crimp, solder
  3. 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 c. Diode test d. Voltage drop test - correct answer.a. DMM for voltage as you spin the wheel
  4. How do you properly repair a CAN-Line? a. cut, strip, solder, tape b. Cut, strip, stagger splices, mimic twist rate, heat shrink c. Cut, strip, butt connector d. Cut, strip, solder, wrap - correct answer.b. Cut, strip, stagger splices, mimic twist rate, heat shrink Terminals of the 9 pin Deutsch connector shows infinite resistance on the j1939 circuit. What is the likely reason? a. Nothing, this is normal b. An open in the circuit c. A Short in the circuit d. J1708 data bus present - correct answer.no answer in book
  5. 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 answer.a. Float is stuck in the full position
  6. What shouldn't you do while programing an ECM? a. Leave the vehicles key on

d. Alternator belt is slipping - correct answer.d. Alternator belt is slipping

  1. The voltage regulator controls current in which of the following components? a. Diode trio b. Field coil windings c. Rectifier bridge d. Brushes - correct answer.b. Field coil windings
  2. 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 answer.c. Failed voltage regulator
  3. 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 answer.c. Residual magnetism
  4. 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 answer.b. Shorted field coil
  5. One bad diode in a rectifier bridge would likely cause which of the following? a. Low alternator output b. High alternator output c. A noise alternator d. No output at all - correct answer.a. Low alternator output
  6. Which of the following is used to place a load on the charging system when performing a current output test? a. DVOM b. Spare battery c. Carbon pile d. Ammeter - correct answer.c. Carbon pile
  7. At which point during an alternator output test, should the current output reading be taken?

a. When the battery reaches 12v b. When the battery reaches 9.6v c. When the battery reaches 12.7v d. When the battery reaches 13.5v - correct answer.C. When the battery reaches 12.7v

  1. 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 answer.d. 190amps
  2. 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 answer.d. Diode check
  3. 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 answer.b. So that there is no interference between magnetic fields
  4. What is the recommended tool used to check a voltage regulator? a. Ohmmeter b. Voltmeter c. Test light d. Ammeter - correct answer.d. ammeter
  5. 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 answer.a. No current output
  6. What type of stator winding would have only one wire going to each of the three eyelets that bolts to the rectifier bridge? a. Wye b. Delta c. S -type

faults would NOT be responsible for low current draw? a. High resistance in the starter circuit b. Partially discharged batteries c. Seized pistons d. High resistance in the ground circuit - correct answer.c. Seized pistons

  1. What should be regarded as the maximum cranking time before resting a starter motor and allowing it to cool? a. 15 seconds b. 30 seconds c. 1 minute d. 45 seconds - correct answer.b. 30 seconds
  2. When the ignition switch is closed, which of the following should happen first? a. The pull in windings energize b. Cranking current flow goes through the control circuit c. Current flows to the starter solenoid d. The engine shuts down - correct answer.c. Current flows to the starter solenoid
  3. If a heavy duty starter motor appears to spin when energized which of the following could be at fault? a. A defective drive pinion b. A stripped flywheel c. A defective starter motor d. All of the above - correct answer.d. all of the above
  4. When the cranking circuit is energized in sub-zero conditions, the engine turns over slowly and unevenly. Which of the following would be the most likely cause? a. Gelled engine oil b. Frozen circuit c. High coolant temperatures d. Stripped flywheel gear - correct answer.a. Gelled engine oil
  5. When used, where is a starter safety switch likely to be located? a. Standard transmission b. Automatic transmission c. Either a standard or automatic transmission d. Ignition key - correct answer.c. Either a standard or automatic transmission
  6. If you are bypassing a starter relay switch using a jumper wire, what component is being tested? a. Battery bank

b. Ignition key c. Starter solenoid d. Starter relay switch - correct answer.d. Starter relay switch

  1. Which of the following components connects the cranking control circuit with the starter motor high current circuit? a. Starter solenoid b. Starter relay c. Starter button d. Ignition switch - correct answer.b. starter relay
  2. What is the typical reference voltage found within a trucks electrical system? a. Zero V-dc b. Close to 5V-DC c. Up to 2.5v-dc d. Between 12.6v-14.1v - correct answer.b. Close to 5V-DC
  3. What type of output would you measure from a throttle position sensor described as non- contact? a. WM (pulse width modulation) b. DC analogue c. AC analogue d. 3-phase ripple - correct answer.a. WM (pulse width modulation)
  4. When you are preparing to boost a set of discharged batteries, where should you locate the ground wire on the opposing vehicle? a. Anywhere on the frame b. Alternator ground clamp c. Directly on the battery negative post d. Directly to the battery positive post - correct answer.c. directly on the battery negative post
  5. A driver complains of radio static and is having a no start condition, they claim the batteries are brand new, which should you check first? a. Alternator AC leakage b. Alternator amperage output c. Cranking motor ground integrity d. Battery warranty - correct answer.a. Alternator AC leakage
  6. You are measuring resistance through an NTC thermistor type temperature sensor, 75 kohms is displayed, what should be done?

c. Semi-elliptical d. Twisted triad - correct answer.b. delta connection

  1. What specific alternator component is evaluated while doing a AC leakage test? a. Stator b. Diode bridge c. Field windings d. Voltage regulator - correct answer.b. diode bridge
  2. What would happen if you reverse the leads on a DMM on a circuit? a. Display would proceed with a minus symbol b. Circuit would dead short through the DMM c. DMM Fuse failure d. DMM circuit board failure - correct answer.a. Display would proceed with a minus symbol
  3. In a trouble shooting diagnostic tree, what is at the root of the tree? a. Trouble shooting paths b. The MID c. Trouble shooting routes d. The problem - correct answer.d. the problem
  4. When assembling a Deutsch connector, how much insulation should be stripped away from the wire? a. 2mm b. 6mm c. 10mm d. 15mm - correct answer.b. 6mm
  5. A truck system has 3 12v batteries and a 12/12 charging system, how must the batteries be connected? a. In series b. In parallel c. In parallel series d. In isolated circuits - correct answer.b. in parallel
  6. When testing an alternator cable or starter motor cable, what is an acceptable voltage drop for one cable? a. 1.5v b. 0.51v c. 0.35v d. 12v - correct answer.c. 0.35v
  1. When the hold in windings on a starter fails, you'll likely encounter what problem? a. Starter fails to disengage from ring gear b. Excessive heat and smoke from positive starter terminal c. No-crank and excessive clicking noise emitted for magnetic switch d. No-crank and excessive clicking noise emitted from the starter solenoid - correct answer.d. No-crank and excessive clicking noise emitted from the starter solenoid
  2. Which of the following would likely emit a whining noise while the starter is engaged cranking the engine? a. Defective magnetic switch b. Worn pinion bearing c. Worn starter brushes d. Defective flywheel ring gear - correct answer.d. Defective flywheel ring gear
  3. Which of the following is acceptable AC leakage from an alternator while under load? a. 0.5v b. 1.0v c. 12v d. 24v - correct answer.a. 0.5v
  4. A driver complains that the trailer marker lights flash whenever the right turn signal is activated, what is the likely cause? a. Defective electronic flasher unit b. Defective signal switch c. Poor ground in the trailer tail lights d. Shorted light socket terminals in the tail lights - correct answer.d. Shorted light socket terminals in the tail lights
  5. Which of the following could cause a heater motor to operate at a low then specified speed? a. Fuse rating is too high for circuit b. Low speed resistor is open c. High resistance at the positive terminal d. Ground shorted to chassis - correct answer.c. High resistance at the positive terminal
  6. A 2 speed axle shift motor draws 48 amps at 12 V, what should the circuit resistance measure? a. 576 ohms b. 2 ohms c. 4 ohms d. 0.25 ohms - correct answer.d. 0.25ohms

d. Alternator belts and pullies - correct answer.d. Alternator belts and pullies

  1. Which of the following is the proper charging voltage on a truck system? a. 12.6-13.4V b. 14.1-15.5V c. 13.5-14.1V d. 14.6-16.0V - correct answer.c. 13.5-14.1V
  2. In a no start condition, what components should be checked first? a. The starter motor b. The battery cables c. The alternator d. The batteries - correct answer.d. The batteries
  3. If a trucks alternator was fully fielded during operation, what would likely be the result? a. excessive charging system voltage b. batteries discharge rapidly c. Dim lights d. Circuit breaker trips - correct answer.a. Excessive charging system voltage
  4. When bench testing a starter motor, the amperage draw exceeds the manufacturers specifications, what is likely the cause? a. Shorted motor windings b. Burned solenoid contacts c. Open motor windings d. Insufficient brush tension - correct answer.a. Shorted motor windings
  5. What color of wire is the left turn signal in a trailer connector? a. Yellow b. Red c. Green d. Black - correct answer.a. Yellow
  6. A headlight unit terminal feels excessively hot, what could be the likely cause? a. High beams on for too long b. Low current circuit breaker in circuit c. Relay coil partially shorted d. Corrosion causing high resistance at the connection - correct answer.d. Corrosion causing high resistance at the connection
  7. How do you separate an electrical bulk head connector? a. Separate secondary lock and remove b. Pull connector apart from the wires c. Cut the wires and install a new bulk connector

d. Remove locking mechanism and gently pull apart - correct answer.d. Remove locking mechanism and gently pull apart

  1. What is the probable cause in a charging system when the headlights of the vehicle flicker when turned on? a. High resistance in the ground circuit b. Defective diode in alternator c. High resistance in the positive circuit d. High resistance in the light switch - correct answer.B. Defective diode in alternator
  2. What do you do first when there is an electrical problem in the supplemental restraint system (S.R.S.) area? a. Activate S.R.S. b. Disconnect engine E.C.U. c. Disconnect S.R.S. electrical connection d. Remove S.R.S. module to disable - correct answer.c. Disconnect S.R.S. electrical connection
  3. How do you check the spark plug wires? a. Voltmeter b. Ohmmeter c. Diode check d. Connect to a battery and test for spark - correct answer.b. Ohmmeter
  4. What must you set on a spark plug before installation? a. Spark plug wire length b. Spark plug size c. Spark plug material d. Spark plug gap - correct answer.d. Spark plug gap
  5. After replacing an alternator belt, what is the next step? a. Road test b. Apply grease to the belt c. Clear fault codes d. Run engine, stop and adjust tension accordingly - correct answer.d. Run engine, stop and adjust tension accordingly
  6. While working on a computer controlled circuit & system, what should be done first? a. Open the circuit and connect the meter in series between the two open ends b. Open the circuit at the positive and negative terminals of the battery c. Wear a ground strap d. Open the circuit at one poin - correct answer.c. wear a ground strap