Podcast
Questions and Answers
An example of an ______ is the combination of two meshing gears that rotate in opposite directions.
An example of an ______ is the combination of two meshing gears that rotate in opposite directions.
spur gear
The ratio of the number of teeth of the output gear to the number of teeth of the input gear is known as the ______.
The ratio of the number of teeth of the output gear to the number of teeth of the input gear is known as the ______.
gear ratio
A ______ gear is used to change the direction of motion by 90 degrees.
A ______ gear is used to change the direction of motion by 90 degrees.
bevel
The ______ type of follower is very accurate and low friction, but quick to wear away.
The ______ type of follower is very accurate and low friction, but quick to wear away.
Signup and view all the answers
A ______ gear consists of a worm and a worm wheel, often used in devices like drills.
A ______ gear consists of a worm and a worm wheel, often used in devices like drills.
Signup and view all the answers
The purpose of a gear train is to ______ the speed or turning force of a system.
The purpose of a gear train is to ______ the speed or turning force of a system.
Signup and view all the answers
The strength of a material is its ability to resist ______ without breaking.
The strength of a material is its ability to resist ______ without breaking.
Signup and view all the answers
The top surface of the beam is under ______, while the bottom surface is under tension.
The top surface of the beam is under ______, while the bottom surface is under tension.
Signup and view all the answers
When a material does not return to its original shape after being deformed, it is said to be '______'.
When a material does not return to its original shape after being deformed, it is said to be '______'.
Signup and view all the answers
A beam that is supported by two ends is called a ______ beam.
A beam that is supported by two ends is called a ______ beam.
Signup and view all the answers
The ______ of a material is its ability to resist cutting, scratching or wearing off.
The ______ of a material is its ability to resist cutting, scratching or wearing off.
Signup and view all the answers
This behaviour is known as ______'s Law.
This behaviour is known as ______'s Law.
Signup and view all the answers
In _____ conditions, a small current can flow from the power source through the thermistor into the base of transistor to switch it on.
In _____ conditions, a small current can flow from the power source through the thermistor into the base of transistor to switch it on.
Signup and view all the answers
The transistor acts like a _____ switch when the LED is turned on.
The transistor acts like a _____ switch when the LED is turned on.
Signup and view all the answers
A _____ can be used to adjust the sensitivity of the transistor circuit.
A _____ can be used to adjust the sensitivity of the transistor circuit.
Signup and view all the answers
A _____ is an electronic component that can be used to create a latching circuit.
A _____ is an electronic component that can be used to create a latching circuit.
Signup and view all the answers
The thyristor stays latched on until it is manually _____.
The thyristor stays latched on until it is manually _____.
Signup and view all the answers
The _____ is connected between the base of the transistor and the negative terminal to adjust the sensitivity.
The _____ is connected between the base of the transistor and the negative terminal to adjust the sensitivity.
Signup and view all the answers
A piece of ______ has rows of copper on its surface.
A piece of ______ has rows of copper on its surface.
Signup and view all the answers
A ______ circuit board (PCB) is the neatest way to join components.
A ______ circuit board (PCB) is the neatest way to join components.
Signup and view all the answers
A printed circuit board is a thin ______ sheet with copper tracks on the surface.
A printed circuit board is a thin ______ sheet with copper tracks on the surface.
Signup and view all the answers
To etch a circuit, draw your circuit on a piece of ______ board using an etch-resist pen.
To etch a circuit, draw your circuit on a piece of ______ board using an etch-resist pen.
Signup and view all the answers
Use a solvent to wipe off the ______ ink or transfers.
Use a solvent to wipe off the ______ ink or transfers.
Signup and view all the answers
The photo-resist method lets you make two or more identical ______.
The photo-resist method lets you make two or more identical ______.
Signup and view all the answers
Gusset plates are used to add ______ and support to a joint
Gusset plates are used to add ______ and support to a joint
Signup and view all the answers
Ribs are used to ______ shell structures such as walls of a building
Ribs are used to ______ shell structures such as walls of a building
Signup and view all the answers
A ______ is a member that adds strength to a joint and adds support to a member
A ______ is a member that adds strength to a joint and adds support to a member
Signup and view all the answers
A structure is in ______ when all moments or forces acting upon it are balanced
A structure is in ______ when all moments or forces acting upon it are balanced
Signup and view all the answers
The formula to calculate moment is ______ x perpendicular distance between force and pivot
The formula to calculate moment is ______ x perpendicular distance between force and pivot
Signup and view all the answers
Spot ______ can be used to join thin steel components quickly
Spot ______ can be used to join thin steel components quickly
Signup and view all the answers
