Question 1

Which term is used to describe a TBI system where the injector pulses once per each distributor reference pulse?

Accepted Answer

A)  Synchronized 
B)  Mass airflow 
C)  Speed density 
D)  Nonsynchronized 
A)  Synchronized 
B)  Mass airflow 
C)  Speed density 
D)  Nonsynchronized

Question 2

Technician A says that vacuum-operated fuel pressure regulators allow an equal pressure drop across the fuel injectors all the time. Technician B says that intake manifold pressure is high at idle. Which technician is correct?

Accepted Answer

A)  Technician A only 
B)  Technician B only 
C)  Both technicians A and B 
D)  Neither technician A nor B 
A)  Technician A only 
B)  Technician B only 
C)  Both technicians A and B 
D)  Neither technician A nor B

Question 3

All these are returnless fuel systems EXCEPT ________.

Accepted Answer

A)  Mechanical returnless fuel system 
B)  Electronic returnless fuel system 
C)  Demand delivery system 
D)  All of these are types of returnless systems. 
A)  Mechanical returnless fuel system 
B)  Electronic returnless fuel system 
C)  Demand delivery system 
D)  All of these are types of returnless systems.

Question 4

Which type of port fuel injection fires each injector separately, following the engine firing order?

Accepted Answer

A)  Sequential fired 
B)  Grouped double fire 
C)  Throttle body injection 
D)  Simultaneous double fired 
A)  Sequential fired 
B)  Grouped double fire 
C)  Throttle body injection 
D)  Simultaneous double fired

Which term is used to describe a TBI system where the injector pulses once per each distributor reference pulse?

Technician A says that vacuum-operated fuel pressure regulators allow an equal pressure drop across the fuel injectors all the time. Technician B says that intake manifold pressure is high at idle. Which technician is correct?

All these are returnless fuel systems EXCEPT ________.

Which type of port fuel injection fires each injector separately, following the engine firing order?

The Diagnostic Process

Gasoline, Alternative Fuels, and Diesel Fuels

Circuit Testers and Digital Meters

Oscilloscopes and Dsos

Engine Systems

In-Vehicle Engine Service

Valve Train and Variable Valve Timing Diagnosis

Engine and Misfire Diagnosis

Can and Network Communications

Onboard Diagnosis

Global Obd Ii and Mode 06

Immobilizer Systems

Starting and Charging System Diagnosis

Ignition System Operation and Diagnosis

Temperature Sensors

Throttle Position Tp Sensors

Map and Maf Sensors

Electronic Throttle Control Systems

Oxygen Sensors

Fuel Trim Diagnosis

Fuel Pumps, Lines, and Filters

Gasoline Direct-Injection Systems

Fuel-Injection System Diagnosis and Service

Electronic Transmission Controls

Vehicle Emissions Standards and Testing

Emission Control Devices Operation and Diagnosis

Module Reprogramming

Symptom-Based Diagnosis

Filters

Exam 22: Fuel-Injection Components and Operation

Which term is used to describe a TBI system where the injector pulses once per each distributor reference pulse?

Technician A says that vacuum-operated fuel pressure regulators allow an equal pressure drop across the fuel injectors all the time. Technician B says that intake manifold pressure is high at idle. Which technician is correct?

All these are returnless fuel systems EXCEPT ________.

Which type of port fuel injection fires each injector separately, following the engine firing order?

The Diagnostic Process

Gasoline, Alternative Fuels, and Diesel Fuels

Circuit Testers and Digital Meters

Oscilloscopes and Dsos

Engine Systems

In-Vehicle Engine Service

Valve Train and Variable Valve Timing Diagnosis

Engine and Misfire Diagnosis

Can and Network Communications

Onboard Diagnosis

Global Obd Ii and Mode 06

Immobilizer Systems

Starting and Charging System Diagnosis

Ignition System Operation and Diagnosis

Temperature Sensors

Throttle Position Tp Sensors

Map and Maf Sensors

Electronic Throttle Control Systems

Oxygen Sensors

Fuel Trim Diagnosis

Fuel Pumps, Lines, and Filters

Gasoline Direct-Injection Systems

Fuel-Injection System Diagnosis and Service

Electronic Transmission Controls

Vehicle Emissions Standards and Testing

Emission Control Devices Operation and Diagnosis

Module Reprogramming

Symptom-Based Diagnosis

Filters