NivaarExam Prep

22-Mec-B8 Engineering Materials

Worked solutions to 13 past sittings (2013–2019), 103 questions. Pick a sitting, or start from a topic below.

Topics across the sittings

Topics that come up in more than one sitting, taken from the headings of our worked solutions. A topic counts once per sitting.

Questions by sitting

December 2019

  1. Question 1: Elongation from the true stress–true strain flow curve
  2. Question 2: Designing a copper drawing schedule with an intermediate anneal
  3. Question 3: Selecting non-standard materials from their bonding
  4. Question 4: Galvanic couples in sea water
  5. Question 5: Microstructures from the isothermal transformation diagram
  6. Question 6: Phase and constituent fractions in an Al–8 wt% Cu alloy
  7. Question 7: Longitudinal properties of a continuous aligned glass-fibre composite

December 2018

  1. Question 1: ABS versus phenolic for an engine-mounted box
  2. Question 2: Why carbon embrittles high-tensile steel, and how maraging steels avoid it
  3. Question 3: Processing routes for aerospace FRP laminated components
  4. Question 4: Necking of a ductile wire — Considère's criterion
  5. Question 5: Poisson's ratio for perfectly plastic, constant-volume deformation
  6. Question 6: Aluminium–lithium substitution for aircraft floor beams
  7. Question 7: Magnesium sacrificial anode in a hot water heater
  8. Question 8: Two applications where corrosion is an issue

May 2018

  1. Question 1: Processing routes for aerospace FRP laminated components
  2. Question 2: ABS versus hardened PVC for an engine-mounted box
  3. Question 3: Two applications where corrosion is an issue
  4. Question 4: Aluminium–lithium substitution for aircraft floor beams
  5. Question 5: Heat-treatment schemes for 1080 steel using the TTT diagram
  6. Question 6: Carbon diffusion through FCC and BCC iron
  7. Question 7: Magnesium sacrificial anode in a hot water heater
  8. Question 8: Tension test on an aluminium bar

December 2017

  1. Question 1: Magnesium sacrificial anode in a hot water heater
  2. Question 2: Why carbon embrittles high-tensile steel, and how maraging steels avoid it
  3. Question 3: Poisson's ratio for perfectly plastic, constant-volume deformation
  4. Question 4: Replacing 2024-T4 with 7075-T6 on a stretched commercial jet
  5. Question 5: Processing routes for aerospace FRP laminated components
  6. Question 6: Composition of a barium-borate glass-ceramic in weight percent
  7. Question 7: Necking of a ductile wire — Considère's criterion
  8. Question 8: Three aluminium alloys for transport-aircraft floor beams

May 2017

  1. Question 1: Necking of a ductile wire — Considère's criterion
  2. Question 2: Heat-treatment schemes for 1080 steel using the TTT diagram
  3. Question 3: Composition of a barium-borate glass-ceramic in weight percent
  4. Question 4: Why carbon embrittles high-tensile steel, and how maraging steels avoid it
  5. Question 5: Magnesium sacrificial anode in a hot water heater
  6. Question 6: Processing routes for aerospace FRP laminated components
  7. Question 7: E-glass/PVC composite — modulus, load sharing and strain
  8. Question 8: Three aluminium alloys for transport-aircraft floor beams

December 2016

  1. Question 1: Replacing 2024-T4 with 7075-T6 on a stretched business jet
  2. Question 2: Composition of a barium-borate glass-ceramic in weight percent
  3. Question 3: E-glass/PVC composite — modulus, load sharing and strain
  4. Question 4: Necking of a ductile wire — Considère's criterion
  5. Question 5: Two applications where corrosion is an issue
  6. Question 6: Aluminium–lithium substitution for aircraft floor beams
  7. Question 7: Poisson's ratio for perfectly plastic, constant-volume deformation
  8. Question 8: ABS versus phenolic for an engine-mounted box

May 2016

  1. Question 1: Replacing 2024-T4 with 7075-T6 on a stretched business jet
  2. Question 2: Processing routes for aerospace FRP laminated components
  3. Question 3: Why carbon embrittles high-tensile steel, and how maraging steels avoid it
  4. Question 4: ABS versus hardened PVC for an engine-mounted box
  5. Question 5: Two applications where corrosion is an issue
  6. Question 6: Aluminium–lithium substitution for aircraft floor beams
  7. Question 7: Heat-treatment schemes for 1080 steel using the TTT diagram
  8. Question 8: Magnesium sacrificial anode in a hot water heater

May 2015

  1. Question 1: Processing routes for aerospace FRP laminated components
  2. Question 2: Magnesium sacrificial anode in a hot water heater
  3. Question 3: Composition of a barium-borate glass-ceramic in weight percent
  4. Question 4: Why carbon embrittles high-tensile steel, and how maraging steels avoid it
  5. Question 5: Heat-treatment schemes for 1080 steel using the TTT diagram
  6. Question 6: Necking of a ductile wire — Considère's criterion
  7. Question 7: E-glass/PVC composite — modulus, load sharing and strain
  8. Question 8: Aluminium–lithium substitution for aircraft floor beams

December 2014

  1. Question 1: Necking of a ductile wire — Considère's criterion
  2. Question 2: Replacing 2024-T4 with 7075-T6 on a stretched business jet
  3. Question 3: Glass-fibre composite — modulus, load sharing and strain
  4. Question 4: Two applications where corrosion is an issue
  5. Question 5: Composition of a barium-borate glass-ceramic in weight percent
  6. Question 6: Why carbon embrittles high-tensile steel, and how maraging steels avoid it
  7. Question 7: Aluminium–lithium floor beams and the promised weight saving
  8. Question 8: ABS versus hardened PVC for an engine-mounted box

May 2014

  1. Question 1: Aluminium alloy versus triaxially braided composite for a fan casing
  2. Question 2: Heat-treatment schemes for 1080 steel using the TTT diagram
  3. Question 3: Aluminium–lithium floor beams and the promised weight saving
  4. Question 4: Two galvanic corrosion problems
  5. Question 5: Advanced composite materials in primary aircraft structure
  6. Question 6: Composition of a barium-borate glass-ceramic
  7. Question 7: Magnesium sacrificial anode in a hot water heater
  8. Question 8: Stresses in a unidirectional carbon/epoxy laminate at 0° and +45°

December 2013

  1. Question 1: Heat-treatment schemes for 1080 steel using the TTT diagram
  2. Question 2: Identifying a polymer from its molecular weight and degree of polymerization
  3. Question 3: Necking instability, ultimate tensile strength and plastic work
  4. Question 4: E-glass/PVC composite — modulus, load sharing and strain
  5. Question 5: Aluminium–lithium substitution for aircraft floor beams
  6. Question 6: Processing routes for aerospace FRP laminated components
  7. Question 7: Magnesium sacrificial anode in a hot water heater
  8. Question 8: Composition of a barium-borate glass-ceramic in weight percent

May 2013

  1. Question 1: Material selection for a new narrow-body airliner body
  2. Question 2: Heat-treatment schemes for 1080 steel using the TTT diagram
  3. Question 3: ABS versus phenolic for an engine-mounted box
  4. Question 4: Two galvanic corrosion problems
  5. Question 5: Composition of a barium-borate glass-ceramic
  6. Question 6: Necking of a ductile wire — Considère’s criterion
  7. Question 7: E-glass/PVC composite — modulus, load sharing and strain
  8. Question 8: Weight saving from an aluminium–lithium floor beam

Undated paper

  1. Question 1: Corrosion rate of iron from its corrosion current density
  2. Question 2: Inward flux of carbon during carburizing, from Fick's first law
  3. Question 3: Atom count and dopant fraction in a silicon wafer
  4. Question 4: Magnesium sacrificial anode in a hot water heater
  5. Question 5: Three consolidation routes for aerospace FRP laminates, and where each may fly
  6. Question 6: ABS versus phenolic for an engine-mounted box
  7. Question 7: Three aluminium alloys for transport-aircraft floor beams
  8. Question 8: Necking of a ductile wire — Considère's criterion