MAE 272 Midterms UPDATED ACTUAL
Exam Questions and CORRECT Answers
A chip breaker is: - CORRECT ANSWER - used if the cutter geometry does not warrant
short chips
A rectangular keyway in a round shaft can be produced by: - CORRECT ANSWER - none
are correct...should be "end milling"
A riser helps: - CORRECT ANSWER - none of the following
A round keyway in a round shaft can be produced by: - CORRECT ANSWER - sink EDM
An estimate for job cost as per customer's RfQ should include: - CORRECT ANSWER -
all answers except dimensions and tolerances
An open riser helps: - CORRECT ANSWER - reduce porosity, thus should not solidify
before the casting
Angles such as chamfers can be measured by using: - CORRECT ANSWER - protractors
Anisotropy in sheet metals: - CORRECT ANSWER - can cause dog-ears and non-uniform
wall thickness in deep drawing
Annealing is: - CORRECT ANSWER - residual stress OR thermal treatment (both are
mentioned in book) BE CAREFUL
ASTM grain size 7 is: - CORRECT ANSWER - good enough for engine hoods and trunk
lids for cars
, Break even point is: - CORRECT ANSWER - return of investment?
Brinell is: - CORRECT ANSWER - standard to determine the surface hardness of a metal
By agreement, sheet metals are defined as such: - CORRECT ANSWER - when one
dimension is less than 2.5 mm, and much smaller the other two
Cafeteria trays can be produced by: - CORRECT ANSWER - Transforming of reinforced
plastic sheets
Cam shafts in a 16-valve 4-cylinder engine can be turned on: - CORRECT ANSWER -
high speed cnc machining center
Casting can be used to: - CORRECT ANSWER - Manufacture high-volume production
parts
Casting using a sand mold is: - CORRECT ANSWER - none is correct
Centrifugal forces can be used: - CORRECT ANSWER - cast hollow and solid objects
(chegg)
Changes in bending angles after bending due to Springback are functions of: - CORRECT
ANSWER - all are correct (pg. 404) - cross referenced with chegg response
climb milling is: - CORRECT ANSWER - preferred for slender parts due to the downward
forces
Cold forming of metals is done at: - CORRECT ANSWER - T/Tm just below 0.3
Exam Questions and CORRECT Answers
A chip breaker is: - CORRECT ANSWER - used if the cutter geometry does not warrant
short chips
A rectangular keyway in a round shaft can be produced by: - CORRECT ANSWER - none
are correct...should be "end milling"
A riser helps: - CORRECT ANSWER - none of the following
A round keyway in a round shaft can be produced by: - CORRECT ANSWER - sink EDM
An estimate for job cost as per customer's RfQ should include: - CORRECT ANSWER -
all answers except dimensions and tolerances
An open riser helps: - CORRECT ANSWER - reduce porosity, thus should not solidify
before the casting
Angles such as chamfers can be measured by using: - CORRECT ANSWER - protractors
Anisotropy in sheet metals: - CORRECT ANSWER - can cause dog-ears and non-uniform
wall thickness in deep drawing
Annealing is: - CORRECT ANSWER - residual stress OR thermal treatment (both are
mentioned in book) BE CAREFUL
ASTM grain size 7 is: - CORRECT ANSWER - good enough for engine hoods and trunk
lids for cars
, Break even point is: - CORRECT ANSWER - return of investment?
Brinell is: - CORRECT ANSWER - standard to determine the surface hardness of a metal
By agreement, sheet metals are defined as such: - CORRECT ANSWER - when one
dimension is less than 2.5 mm, and much smaller the other two
Cafeteria trays can be produced by: - CORRECT ANSWER - Transforming of reinforced
plastic sheets
Cam shafts in a 16-valve 4-cylinder engine can be turned on: - CORRECT ANSWER -
high speed cnc machining center
Casting can be used to: - CORRECT ANSWER - Manufacture high-volume production
parts
Casting using a sand mold is: - CORRECT ANSWER - none is correct
Centrifugal forces can be used: - CORRECT ANSWER - cast hollow and solid objects
(chegg)
Changes in bending angles after bending due to Springback are functions of: - CORRECT
ANSWER - all are correct (pg. 404) - cross referenced with chegg response
climb milling is: - CORRECT ANSWER - preferred for slender parts due to the downward
forces
Cold forming of metals is done at: - CORRECT ANSWER - T/Tm just below 0.3
