Trade Science Flashcards
What is Tensile Strength?
Ability of a material to resist being pulled apart by external forces.
What is Ductility
The ability to stretch and maintain the new shape. Allows material to be drawn through a die and pulled into a wire or rod.
What is Malleability
The ability of a material to be permanently deformed by compressive force.
What is Toughness?
The ability of a material to withstand shock loads.
What is Hardness?
Ability to resist a force that is trying to penetrate it.
What is the angle for a drill bit cutting general material?
- Cutting material like mild steel is done with:
What is the drill bit angel for cutting Hard material?
Cutting material such as heat treated alloy steel is done with:
What drill bit angel is used to cut soft materials?
Aluminum and other thin materials are cut with:
What three ways can a shaft fit into a hole?
Clearance
Transition
Interference
What is a Clearance fit?
The shaft and the hole will always have space between each other when slid into one another.
What is and Interference fit?
When the shaft and the hole do not have space between the two parts when slid into one another.
The parts may need to be pressed, heated or cooled.
List the Galvanic Series
Each metal is corrded by all those metals listed after it.
What is 1 US liquid Gallon = to in Liters?
1 = 3.785
Label this.
What is it?
Micrometer
What are the rotating components of an outside micrometer called?
Spindle and thimble
Answer
D)
