Design Technology - A-Level Exam
With answers
One off production - answer--unique
-hand made
-expensive materials
-highly skilled workers
Batch production - answer--semi skilled workers
-flexible manufacturing system
-different batches of products are made
Mass Production - answer--low skilled workers
-1000's of items made
-JIT method
Continuous Production - answer--24/7
-low number of workers
-highly skilled workers
Gears - answer--change the direction of rotary motion
-change spindle speed
-transmit motion through 90 degrees
are wheels which curved teeth cut into them to prevent jamming. force can be
transmitted efficiently
Compound gear - answer-a big gear with a small gear on it
Spur Gear - answer--found in gear boxes
-speed can be increased or decreased
-direction can be changed
Bevel and Mitre - answer--found in hand drills
-can have shafts at 90 degrees
-different sized gears can change speed
Worm and Wheel - answer--found in string instruments
-reduced rotational speed
-decrease speed = increase of torque
Rack and Pinion - answer--found in pillar drills
, -transmits rotary motion into linear motion
Liquid Cement - answer--used on acrylic
-use crime to scratch surface = allows solvent to go into the indents
-put glue on both surfaces
-clamp
Contact Adhesive - answer--apply to both surfaces
-used on veneer
-allow to dry
-put materials together
-they stick instantly
-can be used on large surfaces
-only get 1 change
Epoxy Resin - answer--mix the resin and harder together
-allow to cure
-glues any materials
-expensive
hot glue gun - answer--apply to the material
-drys quick
-cheap
Super Glue (cyanoacrylate) - answer--glues different materials
-strong
-quick
-Expensive
V-thread - answer-used on nuts and bolts
Buttress thread - answer-NNNN
transmits force in one direction
ACME Thread - answer-gives tremendous force
spring washers - answer-dont become loose with force
wing nut - answer-hand tightening
counter sinking - answer--use counter sink drills to create the holes
With answers
One off production - answer--unique
-hand made
-expensive materials
-highly skilled workers
Batch production - answer--semi skilled workers
-flexible manufacturing system
-different batches of products are made
Mass Production - answer--low skilled workers
-1000's of items made
-JIT method
Continuous Production - answer--24/7
-low number of workers
-highly skilled workers
Gears - answer--change the direction of rotary motion
-change spindle speed
-transmit motion through 90 degrees
are wheels which curved teeth cut into them to prevent jamming. force can be
transmitted efficiently
Compound gear - answer-a big gear with a small gear on it
Spur Gear - answer--found in gear boxes
-speed can be increased or decreased
-direction can be changed
Bevel and Mitre - answer--found in hand drills
-can have shafts at 90 degrees
-different sized gears can change speed
Worm and Wheel - answer--found in string instruments
-reduced rotational speed
-decrease speed = increase of torque
Rack and Pinion - answer--found in pillar drills
, -transmits rotary motion into linear motion
Liquid Cement - answer--used on acrylic
-use crime to scratch surface = allows solvent to go into the indents
-put glue on both surfaces
-clamp
Contact Adhesive - answer--apply to both surfaces
-used on veneer
-allow to dry
-put materials together
-they stick instantly
-can be used on large surfaces
-only get 1 change
Epoxy Resin - answer--mix the resin and harder together
-allow to cure
-glues any materials
-expensive
hot glue gun - answer--apply to the material
-drys quick
-cheap
Super Glue (cyanoacrylate) - answer--glues different materials
-strong
-quick
-Expensive
V-thread - answer-used on nuts and bolts
Buttress thread - answer-NNNN
transmits force in one direction
ACME Thread - answer-gives tremendous force
spring washers - answer-dont become loose with force
wing nut - answer-hand tightening
counter sinking - answer--use counter sink drills to create the holes
