ENGM 445 QUIZ 4 QUESTIONS AND
ANSWERS GRADED A+ 2025/2026
The nontraditional processes differ from conventional machining processes by the fact that they
do not use a sharp cutting tool to remove chips from a workpiece.
a) True
b) False - ANS a) True
Which two of the following are reasons why the nontraditional machining processes were
developed?
a) the need for unusual and/or complex geometries that are difficult or impossible to machine
by conventional machining
b) the need to achieve superior surface finishes that cannot be obtained by conventional
grinding
c) the need to improve safety conditions for machine operators
d) the need to machine newly developed materials that are difficult or impossible to machine by
conventional machining - ANS a) the need for unusual and/or complex geometries that are
difficult or impossible to machine by conventional machining
d) the need to machine newly developed materials that are difficult or impossible to machine by
conventional machining
Which two of the following are not among the four principal energy forms used to remove
material in the nontraditional machining processes?
1 @COPYRIGHT 2026 ALLRIGHTS RESERVED.
, a) atomic
b) chemical
c) electrical
d) mechanical
e) solar
f) thermal - ANS a) atomic
e) solar
Which three of the following processes use mechanical energy as the principal energy sources?
a) electrochemical grinding
b) laser beam machining
c) conventional milling
d) ultrasonic machining
e) water jet cutting
f) wire EDM - ANS c) conventional milling
d) ultrasonic machining
e) water jet cutting
In water jet cutting and abrasive water jet cutting, the separation between the nozzle opening
and the work surface is called which one of the following?
a) gap
b) gap size
c) orifice
d) overcut
e) standoff distance - ANS e) standoff distance
2 @COPYRIGHT 2026 ALLRIGHTS RESERVED.
ANSWERS GRADED A+ 2025/2026
The nontraditional processes differ from conventional machining processes by the fact that they
do not use a sharp cutting tool to remove chips from a workpiece.
a) True
b) False - ANS a) True
Which two of the following are reasons why the nontraditional machining processes were
developed?
a) the need for unusual and/or complex geometries that are difficult or impossible to machine
by conventional machining
b) the need to achieve superior surface finishes that cannot be obtained by conventional
grinding
c) the need to improve safety conditions for machine operators
d) the need to machine newly developed materials that are difficult or impossible to machine by
conventional machining - ANS a) the need for unusual and/or complex geometries that are
difficult or impossible to machine by conventional machining
d) the need to machine newly developed materials that are difficult or impossible to machine by
conventional machining
Which two of the following are not among the four principal energy forms used to remove
material in the nontraditional machining processes?
1 @COPYRIGHT 2026 ALLRIGHTS RESERVED.
, a) atomic
b) chemical
c) electrical
d) mechanical
e) solar
f) thermal - ANS a) atomic
e) solar
Which three of the following processes use mechanical energy as the principal energy sources?
a) electrochemical grinding
b) laser beam machining
c) conventional milling
d) ultrasonic machining
e) water jet cutting
f) wire EDM - ANS c) conventional milling
d) ultrasonic machining
e) water jet cutting
In water jet cutting and abrasive water jet cutting, the separation between the nozzle opening
and the work surface is called which one of the following?
a) gap
b) gap size
c) orifice
d) overcut
e) standoff distance - ANS e) standoff distance
2 @COPYRIGHT 2026 ALLRIGHTS RESERVED.
