Worksheetsengineering CFA review
Total questions: 11
Worksheet time: 8mins
You oversee building a footbridge that crosses a small stream. The footbridge must be able to hold the weight of 10 people and be 2 meters across and 15 meters in length. The materials for construction must include recycled materials.
Which of the following is a criteria?
The bridge must cross a stream.
The footbridge must be made of only wood.
The footbridge must hold the weight of 10 people.
The bridge must be made of recycled material.
The city has decided to build a dog park. It will need fencing, grass, a bench, a bag dispenser, a waste receptacle, and a sign with rules for the dogs and their owners. The total cost needs to be under $25,000.
Would fencing be a criteria or constraint of this building challenge?
criteria
constraint
___________ has a similar meaning to constraint.
limitation
requirement
What is criteria?
standard
limitation
research tool
Why is it important to have criteria and constraints when starting a project or design?
what is density?
amount of matter
The measurement of mass divided by volume
amount of space
Which method would you use to measure the volume of a marble?
Use a graduated cylinder and measure the water displacement.
Use a spring scale.
Use a triple beam balance.
Use a calculator.
Which of the following is the correct formula for density?
D=m/g
D=m/v
D=v/g
What instrument do we use to measure mass?
graduated cylinder
triple beam balance
ruler
What does optimal mean?
the first design
to change
the most desireable or best choice
the worst choice
What is the first design of something called?
prototype
optimal
modify
solution
