MECH 44 Sierra Community College
MEC-44 Quiz 1


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1: Mechatronics blends the art and science of
Computer Control, Mechanical, Electrical
Electronics, System Control, and Modeling
Valves, microprocessors, pumps
transistors, solenoids, motors
2: The inventor of the AC motor was
Edison
A. G. Bell
Tesla
Westinghouse
3: The three parts of the Sierra College Mechatronics program are
AS Degree, BS Degree, MS Degree
AS Degree in Mechatronics, Mechatronics Certificate, Electromechanical Certificate
Jim, Tony, and Mike
Computer Control, Modeling, and System Control
4: You always sign and date sketches because
if they are lost they can be returned to you
you are really quite proud of them and want your name on them
they can be filed by the person's name
they could be used in a patent lawsuit some day
5: The class website is at
www.sierracollege.edu/MECH44
www.rstengineering.com/sierra
www.gmail.com/sierra
www.sierra/rocklin/MECH44
6: About how much of the electrical energy in the USA is consumed by motors?
20%
50%
70%
90%
7: An ordinary nut and bolt is an example of a
temporary fastener
semi-permanent fastener
permanent fasteer
deuterium fastener
8: The permanent fastener
needs to be heat-treated
can be done with blue loctite
can be made from a roll pin
destroys the fastener when taking the parts apart
9: The fuel gas of choice in gas welding is generally
oxygen
acetylene
propane
natural gas
10: Mig, Tig, and Stick welding
are not used much any more
all use a meltable electrode
are all forms of arc welding
can be done with a gas welding tool
11: Spot welding is done by
melting the metals where they touch
using a spot flame on a gas torch
using a non-electrical process
using a tungsten electrode
12: Drawing numbers
are done sequentially, starting with 1
are assigned randomly
are not used in Mechatronics
are done with respect to a chart of assignments
13: The best accuracy you can hope for with a steel ruler is
0.001"
0.010"
0.050"
0.100"
14: A "mil" in Mechatronics is
one millimeter
a mother-in-law
one thousandth of an inch
ten thousandths of an inch
15: The combination square is set by
using the precise calibration lines on the square
using a micrometer
using a steel rule to set the square
trick question. You cannot set a combination square
16: To keep the metal surface from being scratched during the scribing process
you can use machinist's bluing on the metal
you can laser etch the metal
you can use a scribe directly onto the metal surface
you can use a lathe to cut a straight line without scribing at all.
17: A formal engineering drawing
is done on plain grid or graph paper
has a border and a title block
is usuall done by hand these days
requires you to be in a tuxedo when you draw it.
18: Drawing number M44-2700 is
an antenna
a drawing template
not allowed
a bracket
19: Drawing number 1234-0600 is
a generator pulley
somebody's blank template with the title block horizontal along the bottom of the sheet
somebody's blank template with a title block in the lower right hand corner
a chassis cover
20: Autosketch
is a pc board layout program
is a drafting program
is a set of rules for how to do hand sketches
is a spreadsheet program
21: The final version of a drafting template should be
saved on a flash drive in read-only mode
should be saved on a flash drive in editable mode
should be saved on the hard drive of the classroom computer
should be saved on the mainframe of the college computer
22: How thick is 20 gauge steel?
1020 mils
20 mils
36 mils
0.050"
23: "Mat'l CRS .... "on a drawing means that
"I Can't Remember Stuff" like this
the partis made of alloy Chromium, Rubidium, and Steel
the part can be made from any grade of steel
the part is made from cold rolled steel
24: The first three or four digits of an engineering drawing number are
always C44
unique to the individual or company
selected from the Engineering Drawing Numbering chart
all letters or all numbers only
25: The classroom computers
are wiped clean of any new hard drive storage every time the computer is turned off
should be used to store sensitive or difficult project files between classes
are not able to connect to the internet
have two hard drives, one of which you may leave material on from class to class

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