Fill in the blank: One of the chapter outcomes is to identify sources of ______ power.

Fill in the blank: One of the chapter outcomes is to explain the different types of electrical ______ found in agriculture.

Fill in the blank: One of the chapter outcomes is to identify types of ______.

Fill in the blank: One of the chapter outcomes is to wire and repair electrical ______.

Fill in the blank: One of the chapter outcomes is to wire an agricultural ______.

Fill in the blank: One of the chapter outcomes is to troubleshoot ______ circuits.

What is direct current (DC)?

Direct current (DC) is commonly produced by _________.

Most electrical systems in vehicles use which type of current?

Nearly all electronic systems use ______ current.

Many portable power tools and appliances are operated on power supplied by ______ batteries.

Which of the following is a source of DC electricity?

Fill in the blank: ________ is a source of DC electricity that uses sunlight to generate power.

Fill in the blank: ________ are devices that store and provide DC electricity for various applications.

Fill in the blank: ________ and ________ are machines that can generate DC electricity mechanically.

Fill in the blank: Alternators and generators generate _____ power that is converted to DC electricity.

Fill in the blank: AC is converted to DC with an electronic _____

The rectifier uses _____ to convert AC to DC.

Fill in the blank: The diodes are electric gates that allow current to pass in one direction but not the _____

Fill in the blank: Excess heat energy is dissipated through conductive _____

Fill in the blank: Most electronics have a built-in _____

Solar energy is converted to ______ through photovoltaic cells.

Photovoltaic cells absorb photons of light and release ______ charged electrons.

What is the result of capturing free electrons in photovoltaic cells?

What is a photovoltaic module? Fill in the blank: A photovoltaic module is a group of ________ mounted in a frame and electrically connected to each other.

What do multiple photovoltaic modules wired together form?

Which of the following is NOT a use of a photovoltaic module?

A battery is an __________ device that stores and produces electricity.

How many plates does a battery contain?

The load causes the electrons to flow from the _______ plate to the _______ plate to equalize potential difference.

Charging the battery restores the difference in _______ potential between the plates.

What are loads in the context of electrical power?

DC power is used for a variety of loads, including which of the following?

Fill in the blank: DC power is used for a variety of loads, including ________ motors.

Which of the following is NOT listed as a load that uses DC power?

Name one type of device, other than lighting, electric motors, or heaters, that can use DC power.

What is the typical power source for lighting on agricultural tractors, trucks, and other vehicles?

Which of the following is NOT listed as a type of lighting using DC?

Typically, the lighting on agricultural tractors, trucks, and other vehicles is powered by ____ battery systems.

Name one example of lighting that uses DC power.

What do electric motors using DC power convert?

Which of the following does the construction of electric motors resemble?

Electric motors maintain a constant ______ at varying loads.

Duty cycle is the amount of time a motor can safely operate in relation to time needed to ______ down.

Which of the following is NOT a use for electric DC motors?

Identify the labeled part in the diagram: This part is responsible for transferring electrical current to the rotating armature.

Fill in the blank: An electromagnet is a soft metal core made into a magnet by the passage of ________ through a coiled wire.

Which of the following is a use of electromagnets in DC systems?

Which of the following is a use of electromagnets in DC systems?

Which of the following is a use of electromagnets in DC systems?

Which of the following is a use of electromagnets in DC systems?

Electric brake drums may be actuated by which of the following?

Electric brake drums actuated by electromagnets are typically used in which type of trailers?

Magnets force shoes against the ______ of the brake drums.

What component is labeled in the electric brake drum image?

What do electromagnetic solenoids use to create motion?

Electromagnetic solenoids convert current in a coil to what type of motion?

Which of the following is NOT a use of magnetic forces in electromagnetic solenoids?

Magnetic forces in electromagnetic solenoids can be used to enable remote operation.

Select two applications of magnetic forces in electromagnetic solenoids.

Electric fences have controllers that use step-up transformers to increase _______ and decrease amperage. Fill in the blank.

What do electric fence controllers send through the fence wire until grounded by an animal?

Chargers for electric fences are DC and may be solar powered.

What is a switch?

Simple switches have two positions: ______ and ______.

Momentary switches remain in operating position while the switch is ______.

What are the most common On and Off switches?

Momentary switches are either ______ or ______. (Fill in the blanks)

What does N/O stand for in momentary switches?

What does N/C stand for in momentary switches?

Fill in the blank: A limit switch used to stop auger when a grain bin is full is an example of a ________ switch.

Fill in the blank: A float in a greenhouse cooling system reservoir that signals the pump motor to disconnect power is an example of a ________ switch.

Fill in the blank: A float in a fuel tank that signals the fuel gauge to indicate fuel level is an example of a ________ switch.

Multipositional switches have multiple terminals that can be used to operate several components.

What is one function of multipositional switches?

Vehicle ignitions have switches with ______ or four positions.