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Manufacturing Engineering Ii
Manufacturing Processes Written Test
Quiz 1
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Q.1
During the first half cycle in pressurized powder feed system, powder that has entered the mixing chamber is _____
a) forced out of the nozzle
b) heated to a specific temperature
c) mixed with air
d) mixed with cutting fluid
Q.2
During first half cycle, mixing chamber is at ___________
a) atmospheric pressure
b) 2 atm
c) 2 bar
d) vacuum
Q.3
Powder mass flow rate is controlled by _____________
a) regulating the air flow rate
b) nozzle diameter
c) size of the mixing chamber
d) cycle time
Q.4
In fluidized bed powder spray system, the air flow from the bottom of the reservoir creates_____
a) pressure in the system
b) a cloud of powder particles
c) vacuum in the system
d) high turbulence to increase the effectiveness
Q.5
Which of the following is true about powder flow rate in fluidized bed powder system and other systems?
a) First has higher flow rate the other
b) First has lower flow rate the other
c) There is no relation as it is dependent on nozzle parameters
d) Powder flow rate in is not a measurable parameter
Q.6
The powder mass flow rate is dependent on_____
a) fineness of powder particles
b) type of mask used during the process
c) carrier gas
d) amount of powder
Q.7
Powder compaction is desirable during AJMM.
a) True
b) False
Q.8
There are variations in the powder mass flow rate due to_____
a) powder compaction
b) size of the powder particles
c) air flow rate inside the mixing chamber
d) pressure build-up in the chamber
Q.9
Mounting a variable speed rotary electric mixer above the reservoir can reduce powder compaction.
a) True
b) False
Q.10
The degree of powder stratification is not affected by_____
a) mixing time
b) powder mass flow rate
c) air flow velocity
d) diameter of the funnel in the mixing chamber
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