Lesson Notes By Weeks and Term - Senior Secondary 1

Exhaust system II

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TERM – 3RD TERM

WEEK EIGHT

Class: Senior Secondary School 1

Age: 15 years

Duration: 40 minutes of 5 periods each

Date:

Subject: AUTO MECHANICAL

Topic: EXHAUST SYSTEM II

SPECIFIC OBJECTIVES: At the end of the lesson, pupils should be able to

I.) Identify the components of the exhaust system

II.) Discuss the maintenance of the exhaust system

INSTRUCTIONAL TECHNIQUES: Identification, explanation, questions and answers, demonstration, videos from source

INSTRUCTIONAL MATERIALS: Videos, loud speaker, textbook, pictures,

INSTRUCTIONAL PROCEDURES

PERIOD 1-2

PRESENTATION

TEACHER’S ACTIVITY

STUDENT’S

ACTIVITY

STEP 1

INTRODUCTION

The teacher identify and describes the components of the exhaust system

Students listens attentively to the teacher                                                                          

STEP 2

EXPLANATION

Teacher explain the maintenance of  the exhaust system

Students exhibit attentiveness and active engagement

STEP 3

NOTE TAKING

The teacher writes a summarized

note on the board

The students

copy the note in

their books

 

NOTE

EXHAUST SYSTEM II

Components of the exhaust system

Exhaust systems typically consist of several components:

  1. Exhaust Manifold: Collects exhaust gases from the engine's cylinders and directs them into the exhaust system.
  2. Catalytic Converter: Reduces harmful emissions by converting toxic gases into less harmful ones through chemical reactions.
  3. Muffler: Reduces noise produced by the engine exhaust gases by using baffles and chambers to dissipate sound energy.
  4. Exhaust Pipe: Transports the exhaust gases from the engine to the rear of the vehicle.
  5. Resonator: Helps to further reduce noise by canceling out specific sound frequencies.
  6. Exhaust Tips: These are the visible part of the exhaust system, often adding style to the vehicle's appearance.

Maintenance of exhaust system

Maintaining the exhaust system of a motor vehicle is essential for ensuring optimal performance, fuel efficiency, and environmental friendliness. The following are some of the ways of maintaining the exhaust system:

  1. Regular Inspections: Routinely inspect the exhaust system for signs of damage, including rust, cracks, or holes.
  2. Listen for Unusual Noises: Unusual noises, such as rattling, hissing, or loud exhaust sounds, could indicate a problem with the exhaust system. Investigate any unusual sounds promptly.
  3. Check Exhaust Hangers and Mounts: Ensure that all exhaust system components are properly supported by hangers and mounts.
  4. Inspect Catalytic Converter: Check the catalytic converter for signs of damage or clogging.
  5. Replace Worn Components: Replace any worn-out or damaged components promptly to prevent further damage and ensure proper functioning of the exhaust system.

EVALUATION: 1. Mention 4 components of the exhaust system

  1. Identify 5 maintenance of the exhaust system

CLASSWORK: As in evaluation

CONCLUSION: The teacher commends the students positively