MEGR 2180 - Exam 1Question and
answers 100% correct 2025
Which of the following is/are false (May have multiple answers):
a.Manufacturing is an increasing fraction of GDP in the US
b.Manufacturing makes an increasing contribution to the US GDP
c.The economies of developed countries need a healthy manufacturing
sector. - correct answer ✔A
A logical, sequential flow from concept design through detailed design and
prototyping to full scale production is always the best way to introduce new
product:
a.True b: False - correct answer ✔False
The size scales in modern manufacturing cover more than 10 orders of
magnitude from ~10nm to more than 100 m: (a). True (b):False - correct
answer ✔True
Which of the following is true:
a.Design for Manufacture and Assembly can decrease part count and
assembly time, but always increases cost:
b.Higher quality always means higher cost
c.Spending money to improve quality is always a good investment
d.A warranty repair of a failed system at a customer's site is orders of
magnitude more expensive than making the repair at the factory - correct
answer ✔D
Concurrent Engineering - correct answer ✔Each department is heavily
involved in the initial design stages of the product.
, When a molten elemental metal is cooled from the liquid, the resulting grain
size depends on which of the following:
(a)dislocations
(b) probability of grain boundary formation
(c ) twinning
(d) nucleation rate
(e) plastic deformation. - correct answer ✔(d) nucleation rate
70-80% of the cost in a product design & manufacture is determined in initial
design stage.
(a)True (b) False - correct answer ✔True
Some basic ideas in design for manufacture and assembly include:
(a)Maximize number of used fasteners
(b) Minimize the number of directions from which parts are inserted
(c) Disassembly and recycling are not your concern - correct answer ✔(b)
Minimize the number of directions from which parts are inserted
A number of material properties can be deduced from a tensile test. The slope
of the first part of the stress-strain curve tells us the_____ modulus of the
material.
a.Fracture
b.Strain
c.Young's - correct answer ✔c.Young's
If the load is removed before yield, the unloading stress-strain curve will ____
the curve on loading.
answers 100% correct 2025
Which of the following is/are false (May have multiple answers):
a.Manufacturing is an increasing fraction of GDP in the US
b.Manufacturing makes an increasing contribution to the US GDP
c.The economies of developed countries need a healthy manufacturing
sector. - correct answer ✔A
A logical, sequential flow from concept design through detailed design and
prototyping to full scale production is always the best way to introduce new
product:
a.True b: False - correct answer ✔False
The size scales in modern manufacturing cover more than 10 orders of
magnitude from ~10nm to more than 100 m: (a). True (b):False - correct
answer ✔True
Which of the following is true:
a.Design for Manufacture and Assembly can decrease part count and
assembly time, but always increases cost:
b.Higher quality always means higher cost
c.Spending money to improve quality is always a good investment
d.A warranty repair of a failed system at a customer's site is orders of
magnitude more expensive than making the repair at the factory - correct
answer ✔D
Concurrent Engineering - correct answer ✔Each department is heavily
involved in the initial design stages of the product.
, When a molten elemental metal is cooled from the liquid, the resulting grain
size depends on which of the following:
(a)dislocations
(b) probability of grain boundary formation
(c ) twinning
(d) nucleation rate
(e) plastic deformation. - correct answer ✔(d) nucleation rate
70-80% of the cost in a product design & manufacture is determined in initial
design stage.
(a)True (b) False - correct answer ✔True
Some basic ideas in design for manufacture and assembly include:
(a)Maximize number of used fasteners
(b) Minimize the number of directions from which parts are inserted
(c) Disassembly and recycling are not your concern - correct answer ✔(b)
Minimize the number of directions from which parts are inserted
A number of material properties can be deduced from a tensile test. The slope
of the first part of the stress-strain curve tells us the_____ modulus of the
material.
a.Fracture
b.Strain
c.Young's - correct answer ✔c.Young's
If the load is removed before yield, the unloading stress-strain curve will ____
the curve on loading.
