While having a discussion, Technician A says that when analyzing exhaust readings CO and O2 should be nearly equal. Technician B says that CO, O2, and HC should be low. Who is correct?

A) A only B) B only C) Both A and B D) Neither A nor B A) A only B) B only C) Both A and B D) Neither A nor B

Exam 44: Emission Control System Service

While having a discussion, Technician A says that when analyzing exhaust readings CO and O₂ should be nearly equal. Technician B says that CO, O₂, and HC should be low. Who is correct?

(Multiple Choice)

4.7/5

(30)

Question 21

A major cause of air pollution from motor vehicles is fuel ____________________.

(Short Answer)

4.9/5

(36)

Question 22

A leaking EVAP system can allow gasoline vapors to escape into the air.

(True/False)

4.9/5

(34)

Question 23

While having a discussion, Technician A says that driving the car on the road or on a dyno is the best way to heat up the cat. Technician B says that it is best to run the engine in a stall. Who is correct?

(Multiple Choice)

4.8/5

(46)

Question 24

The ____________________ analyzer measures the content of gases in the exhaust through a probe installed in the exhaust pipe of a running engine.

(Short Answer)

4.8/5

(38)

Question 25

Showing 21 - 25 of 25

Exam 44: Emission Control System Service

While having a discussion, Technician A says that when analyzing exhaust readings CO and O2 should be nearly equal. Technician B says that CO, O2, and HC should be low. Who is correct?

A major cause of air pollution from motor vehicles is fuel ____________________.

A leaking EVAP system can allow gasoline vapors to escape into the air.

While having a discussion, Technician A says that driving the car on the road or on a dyno is the best way to heat up the cat. Technician B says that it is best to run the engine in a stall. Who is correct?

The ____________________ analyzer measures the content of gases in the exhaust through a probe installed in the exhaust pipe of a running engine.

Introduction to the Automobile

Automotive Careers and Technician Certification

Shop Safety

Shop Management, Service Records, and Parts

Locating Service Information and Specifications

Measuring Tools and Systems

Hardware, Fasteners, Drills, and Thread Repair

Shop Tools

General Shop Equipment

Cleaning Equipment and Methods

Lifting Equipment and Air Compressors

Engine Lubrication

Underhood and Body Inspection Vehicle on Ground

Undercar Inspection and Service

Introduction to the Engine

Engine Classifications and Types

Engine Size and Measurements

Engine Upper End

Engine Lower End and Lubrication System Theory

Cooling System Theory

Cooling System Service

Automotive Belts

Automotive Hoses

Automotive Plumbing: Tubing and Pipe

Basic Electrical System Theory and Repairs

Battery Fundamentals

Battery Service

Starting System Fundamentals

Starting System Service

Charging System Fundamentals

Charging System Service

Lighting and Wiring Fundamentals

Lighting and Wiring Service

Safety, Security, Comfort Systems, and Electrical Accessories

Heating and Air-Conditioning Fundamentals

Heating and Air-Conditioning Service

Ignition System Fundamentals

Ignition System Service

Petroleum Fuels and Alternative Fuel Technologies

Fuel System Fundamentals, Gasoline and Diesel

Fuel System Service

Intake and Exhaust Systemsturbochargers and Superchargers

Emission Control System Fundamentals, Gasoline and Diesel

Electronics and Computer Systems Fundamentals

Electronics and Computer Systems Service

Advanced Emission and On-Board Diagnostics Obd

Diagnosing Engine Performance Problems

Diagnosing Engine Mechanical Problems

Engine Removal and Disassembly

Engine Sealing Gaskets, Fastener Torque

Engine Diagnosis and Service: Cylinder Head and Valve Train

Engine Diagnosis and Service: Block, Crankshaft, Bearings, and Lubrication System

Engine Diagnosis and Service: Piston, Piston Rings, Connecting Rod, Engine Balancing

Ordering Parts, Short and Long Blocks, Engine Assembly

Engine Installation, Break-In, and In-Chassis Repairs

Brake Fundamentals

Brake Service

Antilock Brakes, Traction, and Stability Control

Bearings, Seals, and Greases

Tire and Wheel Theory

Tire and Wheel Service

Suspension Fundamentals

Suspension System Service

Steering Fundamentals

Steering System Service

Wheel Alignment Fundamentals

Wheel Alignment Service

Clutch Fundamentals

Clutch Diagnosis and Service

Manual Transmission Fundamentals

Manual Transmission Diagnosis and Repair

Automatic Transmission Fundamentals

Automatic Transmission Diagnosis and Service

Driveline Operation

While having a discussion, Technician A says that when analyzing exhaust readings CO and O₂ should be nearly equal. Technician B says that CO, O₂, and HC should be low. Who is correct?