Lesson 1 - Electrochemical Action
Topics:
Battery characteristics; Electrolysis; Electroplating; Extracting and refining metals; Electrolytic corrosion; Choosing a battery
Learning Objectives:
– State the difference between a primary cell and a secondary cell.– Discuss electrochemical action.
– Explain how battery polarization works.
– State the definition of an electrolyte.
– List the factors to consider in selecting a battery.
Lesson 2 - Battery Characteristics
Topics:
Care and maintenance of dry cells; New kinds of primary cells; Secondary cells; Stationary batteries; Storage batteries
Learning Objectives:
– List advantages of dry cells.– State the characteristics of dry cells.
– Explain how to create a six-volt battery from 1.5 volt dry cells.
– Name the basic kinds of storage cells in use today.
– Explain how to calculate the rating required in a battery for a specific application.
Lesson 3 - Kinds of Batteries
Topics:
Lead-acid batteries; Lead-calcium batteries; Nickel-iron alkaline cells; Nickel-cadmium alkaline cell
Learning Objectives:
– Name the items necessary to form a cell.– Explain how plates in a cell are commonly assembled.
– List the advantages of nickel-cadmium battery.
– Discuss the construction of storage cells.
Lesson 4 - Maintaining Lead-Acid Batteries
Topics:
Placing a new battery in service; Care of dry- and wet-charged batteries; Battery testing; Industrial truck batteries; Battery problems
Learning Objectives:
– List the steps in placing a new dry-charged battery in service.– Name the three basic methods of charging batteries.
– Explain how to measure a cell's specific gravity.
– List causes of low specific gravity in a cell.
– Tell how to clean a wet, dirty battery cover.
Lesson 5 - Charging Lead-Acid Batteries
Topics:
Battery charging; Initial and normal charge; Equalizing, trickle, emergency, boost, and freshening charge; Test discharge; Cell failure
Learning Objectives:
– Explain how to conduct an initial charge.– Discuss the different types of battery charges.
– List the common causes of cell failure.
– Explain how to mix electrolyte correctly.
– Explain how to treat both skin and eyes that have been splashed with acid.
Lesson 6 - Solving Problems in DC Circuits
Topics:
Sources of DC electricity; Ohm's Law; Work; Torque; Power; Efficiency; Branch points and loops
Learning Objectives:
– Define Ohm's Law and use it to solve a problem.– State the definition of a branch point.
– Solve a problem using the power formula.
– State the definition of Kirchhoff's rules.
– Define work, power, torque, and efficiency.
Lesson 7 - DC Series Circuits
Topics:
Ohm's Law for series circuits; Current control; Voltage drop; Using equations; Using Kirchhoff's Rules
Learning Objectives:
– Describe a series circuit.– Solve for E, I, and R in series circuits.
– State the basic rule you must follow when making changes in an equation.
Lesson 8 - Parallel Circuits
Topics:
Recognizing parallel circuits; Resistance, voltage drop, and current in parallel circuits; Calculating resistance and power; Conductance
Learning Objectives:
– State the definition of a parallel circuit.– Explain how to calculate the current in each branch of a parallel circuit.
– Explain how to calculate resistance in a parallel circuit.
– Calculate power in a parallel circuit.
– Find the reciprocal of any value.
Lesson 9 - Series-Parallel Circuits
Topics:
DC motors and generators; Voltage dividers; Lighting circuits; Three- and four-way switch circuits
Learning Objectives:
– State the definition of a series-parallel circuit.– Identify series, parallel, and series-parallel circuits.
– Explain how to calculate resistances in a series-parallel circuit.
– Demonstrate how to trace and simplify a circuit.
Lesson 10 - DC Circuits in Use
Topics:
AC and DC electricity; AC waveform; Peak-to-peak, average, and effective values; Energy storage; Faraday's Law; Basic circuit concepts
Learning Objectives:
– Explain how the three types of dc motors differ.– Demonstrate how to increase and decrease the speed of a dc motor by adding resistors.
– Identify a three-way switch.
– Calculate current and resistance using voltage divider circuits.
