Aqa gcse engineering (2025) comprehensive questions and verified detailed solutions
already a+ graded highly recommended|100% correct!!
What is the function of the drill bit? - -To remove material by drilling through. Creates a
circular hole.
--What material is the drill bit? - -High Carbon Steel (HCS) / High Speed Steel (HSS)
--What is the function of the chuck? - -To hold the drill bit securely. Holds different sized drill
bits.
--What material is the chuck? - -High Carbon Steel (HCS)
--What is the function of the handle? - -Comfort and grip when using the drill.
--What material is the casing of the hand drill? - -ABS / HIPS
--What material is the over moulding on the handle? - -TPE (Rubber)
--Name 3 advantages of Injection Moulding. - -Complex shapes
Fast process
Mass production
--Name 3 disadvantages of Injection Moulding. - -Moulds are expensive to buy/make
Initial set up costs are high
Some very complex shapes are impossible
--What is a die? (casting) - -A mould made of metal
--What is pressure die casting? - -Forcing molten metal under high pressure into a mould
(die).
--Give 1 advantage of pressure die casting. - -Good surface finish
--Give 1 disadvantage of pressure die casting. - -Dies (moulds) are expensive to make.
--Name 2 advantages of permanent joints. - -They don't come loose
They are strong
--Name 1 disadvantage of permanent joints. - -They can't be taken apart for maintenance
--Give an example of a permanent joint. - -Welding / Brazing / Soldering / Riveting /
Adhesives
--Give an example of a temporary joint. - -Threaded fastenings
--What is electroplating? - -Depositing a layer of metal using electrolysis.
already a+ graded highly recommended|100% correct!!
What is the function of the drill bit? - -To remove material by drilling through. Creates a
circular hole.
--What material is the drill bit? - -High Carbon Steel (HCS) / High Speed Steel (HSS)
--What is the function of the chuck? - -To hold the drill bit securely. Holds different sized drill
bits.
--What material is the chuck? - -High Carbon Steel (HCS)
--What is the function of the handle? - -Comfort and grip when using the drill.
--What material is the casing of the hand drill? - -ABS / HIPS
--What material is the over moulding on the handle? - -TPE (Rubber)
--Name 3 advantages of Injection Moulding. - -Complex shapes
Fast process
Mass production
--Name 3 disadvantages of Injection Moulding. - -Moulds are expensive to buy/make
Initial set up costs are high
Some very complex shapes are impossible
--What is a die? (casting) - -A mould made of metal
--What is pressure die casting? - -Forcing molten metal under high pressure into a mould
(die).
--Give 1 advantage of pressure die casting. - -Good surface finish
--Give 1 disadvantage of pressure die casting. - -Dies (moulds) are expensive to make.
--Name 2 advantages of permanent joints. - -They don't come loose
They are strong
--Name 1 disadvantage of permanent joints. - -They can't be taken apart for maintenance
--Give an example of a permanent joint. - -Welding / Brazing / Soldering / Riveting /
Adhesives
--Give an example of a temporary joint. - -Threaded fastenings
--What is electroplating? - -Depositing a layer of metal using electrolysis.
