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Guide for L1 ASE Practice Test

Quiz L1 ASE Practice Test

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Quiz

1/10
Computerized Powertrain Control
What is the primary function of the computerized powertrain control module (PCM) in a vehicle?
Select the answer
1 correct answer
A.
To monitor tire pressure and adjust suspension settings
B.
To control engine and transmission operations for optimal performance
C.
To manage the vehicle’s entertainment and navigation systems
D.
To regulate interior climate and air conditioning functions

Quiz

2/10
Emission Control Systems
What is the primary function of a catalytic converter in an emission control system?
Select the answer
1 correct answer
A.
To increase fuel efficiency by regulating air intake
B.
To reduce harmful exhaust gases by converting them into less toxic substances
C.
To monitor oxygen levels in the exhaust system
D.
To store excess fuel for later combustion

Quiz

3/10
Fuel and Air Inductor Systems
What is the primary function of the air inducer in a fuel and air inducer system?
Select the answer
1 correct answer
A.
To increase fuel pressure before combustion
B.
To draw fresh air into the combustion chamber
C.
To filter contaminants from the exhaust gases
D.
To regulate the temperature of the incoming fuel

Quiz

4/10
General Powertrain
What is the primary function of the powertrain in a vehicle?
Select the answer
1 correct answer
A.
To provide electrical power to the vehicle’s accessories
B.
To deliver power from the engine to the wheels
C.
To control the vehicle’s braking system
D.
To regulate the air-fuel mixture in the engine

Quiz

5/10
I/M Failure
What is the most common reason a vehicle might fail an I/M (Inspection and Maintenance) test due to the On-Board Diagnostics (OBD) system?
Select the answer
1 correct answer
A.
The engine oil level is low
B.
The Check Engine light is on
C.
The tires are worn unevenly
D.
The windshield wiper fluid is empty

Quiz

6/10
Ignition Systems
What is the primary function of the ignition coil in an ignition system?
Select the answer
1 correct answer
A.
To regulate fuel flow to the engine
B.
To convert low voltage into high voltage for spark generation
C.
To control the timing of the fuel injection
D.
To ground the electrical circuit

Quiz

7/10
Computerized Powertrain Control
Which sensor does the computerized powertrain control system rely on to determine engine load?
Select the answer
1 correct answer
A.
Throttle position sensor (TPS)
B.
Oxygen sensor (O2 sensor)
C.
Crankshaft position sensor
D.
Coolant temperature sensor

Quiz

8/10
Emission Control Systems
Which sensor provides critical data to the engine control module for adjusting the air-fuel mixture in emission control systems?
Select the answer
1 correct answer
A.
Throttle position sensor
B.
Oxygen (O2) sensor
C.
Engine coolant temperature sensor
D.
Mass air flow sensor

Quiz

9/10
Fuel and Air Inductor Systems
In a fuel and air inducer system, what could be a common cause of reduced airflow leading to poor engine performance?
Select the answer
1 correct answer
A.
A clogged air filter
B.
Excessive fuel injector pressure
C.
A leak in the fuel line
D.
Overheating of the ignition coil

Quiz

10/10
General Powertrain
Which component in the powertrain is mainly responsible for changing the gear ratios while the vehicle is in motion?
Select the answer
1 correct answer
A.
Differential
B.
Transmission
C.
Driveshaft
D.
Torque converter
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Info quiz:

  • Quiz name:L1 ASE Practice Test
  • Total number of questions:288
  • Number of questions for the test:100
  • Pass score:70%
  • Number of topics:6 Topics
Study topics:Number of questions:
  • Computerized Powertrain Control:48 Questions
  • Emission Control Systems:48 Questions
  • Fuel and Air Inductor Systems:48 Questions
  • General Powertrain:48 Questions
  • I/M Failure:48 Questions
  • Ignition Systems:48 Questions

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