Design Technology - A-Level questions and
answers
One off production - -unique
-hand made
-expensive materials
-highly skilled workers
Batch production - -semi skilled workers
-flexible manufacturing system
-different batches of products are made
Mass Production - -low skilled workers
-1000's of items made
-JIT method
Continous Production - -24/7
-low number of workers
-highly skilled workers
Gears - -change the direction of rotary motion
,Design Technology - A-Level questions and
answers
-change spindle speed
-transmit motion through 90 degrees
are wheel which curved teeth cut into them to prevent jamming. force can be
transmitted efficiently
Compound gear - a big gear with a small gear on it
Spur Gear - -found in gear boxes
-speed can be increased or decreased
-direction can be changed
Bevel and Mitre - -found in hand drills
-can have shafts at 90 degrees
-different sized gears can change speed
Worm and Wheel - -found in string instruments
-reduced rotational speed
-decrease speed = increase of torque
, Design Technology - A-Level questions and
answers
Rack and Pinion - -found in pillar drills
-transmits rotary motion into linear motion
Liquid Cement - -used on acrylic
-use crime to scratch surface = allows solvent to go into the indents
-put glue on both surfaces
-clamp
Contact Adhesive - -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 - -mix the resin and harder together
answers
One off production - -unique
-hand made
-expensive materials
-highly skilled workers
Batch production - -semi skilled workers
-flexible manufacturing system
-different batches of products are made
Mass Production - -low skilled workers
-1000's of items made
-JIT method
Continous Production - -24/7
-low number of workers
-highly skilled workers
Gears - -change the direction of rotary motion
,Design Technology - A-Level questions and
answers
-change spindle speed
-transmit motion through 90 degrees
are wheel which curved teeth cut into them to prevent jamming. force can be
transmitted efficiently
Compound gear - a big gear with a small gear on it
Spur Gear - -found in gear boxes
-speed can be increased or decreased
-direction can be changed
Bevel and Mitre - -found in hand drills
-can have shafts at 90 degrees
-different sized gears can change speed
Worm and Wheel - -found in string instruments
-reduced rotational speed
-decrease speed = increase of torque
, Design Technology - A-Level questions and
answers
Rack and Pinion - -found in pillar drills
-transmits rotary motion into linear motion
Liquid Cement - -used on acrylic
-use crime to scratch surface = allows solvent to go into the indents
-put glue on both surfaces
-clamp
Contact Adhesive - -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 - -mix the resin and harder together
