Title: Theory / Unimportant / Experimental / Machines / Basic and how they work - navy / Block
Tags: hasSeenConjDef

Name: hook
Page: 1
Chapter: 2

Name: Pin
Page: 1
Chapter: 2

Name: Sheave
Page: 1
Chapter: 2

Name: Swallow
Page: 1
Chapter: 2

Name: Breech
Page: 1
Chapter: 2

Name: Cheek
Page: 1
Chapter: 2

Name: Strap
Page: 1
Chapter: 2

Name: Shell
Page: 1
Chapter: 2

Name: A block
Page: 1
Chapter: 2
Name2: A pulley

Question: What can you do with a single fixed sheave ?
Answer: Only change the direction of the force. No mecanical advantage.
Page: 2

Name: A runner
Definition: A single (unfixed) block and fall.
Page: 2
Typ: Moveable block

Question: What is the mechanical advantage of a runner .
Answer: 2. Because the fall is doubled. \(\frac{R}{E}=2\)
Page: 2

Name: A fixed block
Definition: A block, fixed to some position.
Page: 2
Typ: First class lever

Name: A moveable block
Definition: A block, which moves with the rope to some position.
Page: 3
Chapter: 2
Typ: Second class lever

Name: Gun tackle
Page: 3
Chapter: 2
Typ: movable block

Name: A luff tackle
Page: 3
Chapter: 2

Name: A double block
Page: 3
Chapter: 2

Question: Mechanical advantage of luff tackle, , is
Answer: 3
Chapter: 2

Name: Luff upon luff
Page: 5
Chapter: 2

Question: The mechanical advantage of Luff upon luff is
Answer: 12. 3 for luff A and 4 for luff B
Page: 5
Chapter: 2

Question: When putting multiple luff together, their mechanical advantages
Answer: are multiplied together
Page: 5
Chapter: 2

Name: A Chain hoist
Page: 5
Chapter: 2

Question: The mechanical advantage of a Chain hoist is
Answer: 2.
Page: 5
Chapter: 2

Name: Theoretical mechanical advantage
Definition: Mechanical advantage where frictional resistance is not taken into account
Page: 5
Chapter: 2
Definition2: Distance effort moves divided by distance resistance moves (for blocks)
Abbreviation: T.M.A.

Question: Consider a Chain hoist, where you pull on a circle of Radius R, and the weight is on a lever of radius r. The theoretical mechanical advantage is
Answer: \(\frac{2R}{R-r}\)
Page: 6
Chapter: 2

Name: Landlubber
Definition: Someone unfamiliar with ships and sea. A novice in Navy
Page: 1
Chapter: 2