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WorksheetsConstruction and Manufacturing
Total questions: 10
Worksheet time: 5mins
Name
Class
Date
1.
Many new cars use an aluminum alloy frame. Which of the following statements describes an advantage of using aluminum versus steel?
a)
Aluminum has a higher R value, provididng more strength
b)
Aluminum has higher density providing greater acceleration
c)
Aluminum has lower weight providing lower fuel consumption
d)
Aluminum frames have more conductivity resulting in lower corrosion
2.
Which most likely restricts commercial development in a residental area?
a)
zoning laws
b)
building codes
c)
EPA regulations
d)
OSHA regualtions
3.
Highway overpasses contain concrete. Which of the following statements describes how engineers increase tensile strength when the overpass?
a)
they use a quick setting concrete
b)
they put steel bars in the concrete
c)
They add asphalt on top of the concrete
d)
They reduce water in the concrete mixture
4.
These values are the thermal conductivity of the different materials
copper 401 W/cm K
aluminum 237 W/cm K
wood 0.16 W/cmK
rubber 0.05 W/ cm K
Based on their thermal conductivity, which materials would be best for the body and handle of the pot?
copper 401 W/cm K
aluminum 237 W/cm K
wood 0.16 W/cmK
rubber 0.05 W/ cm K
Based on their thermal conductivity, which materials would be best for the body and handle of the pot?
a)
iron for the handle and copper for the body
b)
tin for the handle and aluminum for the body
c)
rubber for the handle and copper for the body
d)
aluminum for the body and wood for the handle
5.
Which is an unsafe practice when using a drill press to make a hole in a wooden block?
a)
sharpening the drill bit before use
b)
holding the wood with one hand while drilling
c)
removing chips with a brush after drilling
d)
running the drill at constant speed while drilling
6.
Home owners making additions to their house are required to obtain building permits. What best describes the purpose for requiring permits?
a)
Permits help homeowners plan the work
b)
Building permits ensure work meets applicable codes for safety
c)
Building codes help homeowners do the work themselves
d)
Building permits ensure the project will make the house more appealing to future buyers
7.
A remotrly controlled robotic arm is used to clean up a contaminated area. Which best describes the purpose for using robotics rather than people for the task?
a)
to prevent an OSHA investigation
b)
to minimize the expense of safety equipment
c)
to avoid human exposure to hazardous waste
d)
to limit human exposure to poor weather condition
8.
The amount of commercial development allowed by a local government is limited by which of the following
a)
building codes
b)
zoning laws
c)
Board of Health regulations
d)
OSHA regulations
9.
A steel cable holds a elevator car suspended in its shaft. What type of stress occurs in the cable
a)
tension
b)
torsion
c)
vibration
d)
compression
10.
A ball bearing is used to reduce the friction between a wheel and shaft. The balls transmit the vehicle weight from the shaft to the wheel. What type of stress do the balls inside the bearing see?
a)
tension
b)
torsion
c)
vibration
d)
compression
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