Intro to Engr Practice Final

Which of the following is an example of an animal engaging in engineering?

• A Beaver building a dam

• A cheetah taking down a gazelle

• A sea otter using a rock to open clams

• None of the above

Which statements regarding base and derived units in the SI, American Engineering, and British engineering systems of units are true?

• Mass is a derived unit in the American engineering system

• Force is a derived unit, the lb_f, in the British Engineering system

• Length and time are based units in all three systems

• None of the above

After reading about the use of isometrics, a form of exercise in which muscles work against a fixed object, you decide to give it a try. You decide to use a parked car in front of your residence for your fixed object. The car weighs 3000lb_m and is 10ft long. You push against it with a force of 100 lb_f for 6 minutes. How much work did you do on the car?

• 600 ft-lb_f

• 18,000 ft-lb_f

• 30,000 ft-lb_f

• 0 ft-lb_f

Which of the following are examples of problems requiring the application of engineering design?

• Deciding whether to build a suspension or cantilever bridge across a river

• Identifying the best design for a new lawnmower

• Estimating the size pump needed to provide a 60 gal/min flowrate through a piping network

• All of the above

Which of the following comparisons between science and engineering are true?

• Science seeks to answer questions, while engineering seeks to solve problems

• The question science answers are usually close-ended, but the problems engineering solves are normally open-ended

• Understanding the stakeholders is critical to engineering but not science

• All of the Above

You are driving a car down a drag stripe fully open at 110mph and slowly accelerating. At this speed, you know that:

• The drag forces on the car are greater than the drive trains force

• The drag forces on the car are equal than the drive trains force

• The drag forces on the car are less than the drive trains force

• None of the above

A hamburger cooking on a grill is an example of what kind of thermodynamic system

• An open system

• An isolated system

• A closed system

• None of the Above

Thermodynamics studies the interconversion of different types of energy. Which of the following is true regarding thermodynamics?

• The 1st law of thermodynamics states that the energy cannot be created or destroyed

• The first law of thermodynamics only applies to isolated systems

• All usable energy eventually degrades to a non-usable form of thermal energy

Which of the following is true regard the development of engineering disciplines?

• Electrical Engineering arose during the 2nd Industrial Revolution in response to the advances in electricity

• Chemical Engineering arose during the 1st Industrial Revolution in response to advances in chemistry and food production

• Engineering disciplines & sub-disciplines are more likely to form when technological advancement is changing rapidly

• All of the above

During ideation and concept evaluation using a divergent-convergent process

• In the deferral of judgement phase, silly ideas are encouraged

• In the divergent phase, participants freely share their judgements regarding the quality of other participants' ideas

• The convergent phase requires disciplined application of selection criteria to identify the best ideas

• All the Above