AQA GCSE Engineering
What is the function of the drill bit? - ANS -To remove material by drilling through. Creates a
circular hole.
What material is the drill bit? - ANS -High Carbon Steel (HCS) / High Speed Steel (HSS)
What is the function of the chuck? - ANS -To hold the drill bit securely. Holds different sized drill
bits.
What material is the chuck? - ANS -High Carbon Steel (HCS)
What is the function of the handle? - ANS -Comfort and grip when using the drill.
What material is the casing of the hand drill? - ANS -ABS / HIPS
What material is the over moulding on the handle? - ANS -TPE (Rubber)
Name 3 advantages of Injection Moulding. - ANS -Complex shapes
Fast process
Mass production
Name 3 disadvantages of Injection Moulding. - ANS -Moulds are expensive to buy/make
Initial set up costs are high
Some very complex shapes are impossible
What is a die? (casting) - ANS -A mould made of metal
What is pressure die casting? - ANS -Forcing molten metal under high pressure into a mould
(die).
Give 1 advantage of pressure die casting. - ANS -Good surface finish
Give 1 disadvantage of pressure die casting. - ANS -Dies (moulds) are expensive to make.
Name 2 advantages of permanent joints. - ANS -They don't come loose
They are strong
Name 1 disadvantage of permanent joints. - ANS -They can't be taken apart for maintenance
, Give an example of a permanent joint. - ANS -Welding / Brazing / Soldering / Riveting /
Adhesives
Give an example of a temporary joint. - ANS -Threaded fastenings
What is electroplating? - ANS -Depositing a layer of metal using electrolysis.
What is galvanising - ANS -Dipping a steel part in molten zinc.
What is the material of the casing of the hand held vacuum? - ANS -LDPE
What is the material used on the cable? - ANS -PVC
What is a risk assessment? - ANS -Identifying a hazard and its risk. Then controlling the risk.
What are templates? - ANS -Standard shapes that are used as patterns
What is a jig? - ANS -A work holding or positioning device that is not fixed to the machine bed.
What is a fixture? - ANS -A work holding or positioning device that is fixed to the machine bed.
What is quality control? - ANS -Finding parts not made to the correct dimensions.
What is quality assurance? - ANS -Planning and doing things to make sure that the product is
made right the first time.
Give 3 advantages of CAM. - ANS -Results are consistent in large-scale production
Accurate surface finish
Speeds up production rate
Give 3 disadvantages of CAM. - ANS -Expensive software
Requires training
Can be slower than traditional methods for one-off production.
Give 3 advantages of robots. - ANS -Can carry out tasks that would be difficult for a human
Faster work rate than humans
Doesn't need breaks unlike humans
Give 3 disadvantages of robots. - ANS -Robots are expensive to buy/build
Takes a long time to write the programs
Errors can cause huge problems
Name three safety hazards related to the pillar drill. - ANS -Swarf - safety goggles/guard
What is the function of the drill bit? - ANS -To remove material by drilling through. Creates a
circular hole.
What material is the drill bit? - ANS -High Carbon Steel (HCS) / High Speed Steel (HSS)
What is the function of the chuck? - ANS -To hold the drill bit securely. Holds different sized drill
bits.
What material is the chuck? - ANS -High Carbon Steel (HCS)
What is the function of the handle? - ANS -Comfort and grip when using the drill.
What material is the casing of the hand drill? - ANS -ABS / HIPS
What material is the over moulding on the handle? - ANS -TPE (Rubber)
Name 3 advantages of Injection Moulding. - ANS -Complex shapes
Fast process
Mass production
Name 3 disadvantages of Injection Moulding. - ANS -Moulds are expensive to buy/make
Initial set up costs are high
Some very complex shapes are impossible
What is a die? (casting) - ANS -A mould made of metal
What is pressure die casting? - ANS -Forcing molten metal under high pressure into a mould
(die).
Give 1 advantage of pressure die casting. - ANS -Good surface finish
Give 1 disadvantage of pressure die casting. - ANS -Dies (moulds) are expensive to make.
Name 2 advantages of permanent joints. - ANS -They don't come loose
They are strong
Name 1 disadvantage of permanent joints. - ANS -They can't be taken apart for maintenance
, Give an example of a permanent joint. - ANS -Welding / Brazing / Soldering / Riveting /
Adhesives
Give an example of a temporary joint. - ANS -Threaded fastenings
What is electroplating? - ANS -Depositing a layer of metal using electrolysis.
What is galvanising - ANS -Dipping a steel part in molten zinc.
What is the material of the casing of the hand held vacuum? - ANS -LDPE
What is the material used on the cable? - ANS -PVC
What is a risk assessment? - ANS -Identifying a hazard and its risk. Then controlling the risk.
What are templates? - ANS -Standard shapes that are used as patterns
What is a jig? - ANS -A work holding or positioning device that is not fixed to the machine bed.
What is a fixture? - ANS -A work holding or positioning device that is fixed to the machine bed.
What is quality control? - ANS -Finding parts not made to the correct dimensions.
What is quality assurance? - ANS -Planning and doing things to make sure that the product is
made right the first time.
Give 3 advantages of CAM. - ANS -Results are consistent in large-scale production
Accurate surface finish
Speeds up production rate
Give 3 disadvantages of CAM. - ANS -Expensive software
Requires training
Can be slower than traditional methods for one-off production.
Give 3 advantages of robots. - ANS -Can carry out tasks that would be difficult for a human
Faster work rate than humans
Doesn't need breaks unlike humans
Give 3 disadvantages of robots. - ANS -Robots are expensive to buy/build
Takes a long time to write the programs
Errors can cause huge problems
Name three safety hazards related to the pillar drill. - ANS -Swarf - safety goggles/guard
