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ES Final Exam Review

Total questions: 35

Worksheet time: 18mins

Name
Class
Date
1.

A_____________ is a machine capable of sensing its environment, processing information, and taking actions based on that information, often with a degree of autonomy. 

a)

a.dishwasher

b)

b.humanoid

c)

c.robot

2.

________________ Centuries (Industrial Revolution): Development of automatons and machines for mass production.

a)

a.15th-16th

b)

b.16th-17th

c)

c.17th-18th

d)

d.18th-19th

3.

What year did Roomba become widely available for consumer use?

a)

a.2001

b)

b.2002

c)

c.2012

d)

d.2021

4.

4. A type of control system where the output is not directly influenced by the input, meaning there's no feedback mechanism to adjust the input based on the actual output.

a)

a.open-loop control system

b)

b.closed-loop control system

c)

c.Python

d)

d.motor

5.

5.A type of system that uses feedback to adjust its output, ensuring it matches a desired state or set point.

a)

a.open-loop control system

b)

b.closed-loop control system

c)

c.Python

d)

d.motor

6.

6. Product designers use a ___________________ when the user will need to adjust a range of values. Two classic examples are the volume control on a sound system and a dimmer switch for a light to adjust the brightness of a lamp or light fixture.

a)

a.limit switch

b)

b.potentiometer

c)

c.motor

d)

d.bumper switch

7.

7. A ______________________ closes an electrical circuit when pressed, and opens a circuit when released.

a)

a.limit switch

b)

b.potentiometer

c)

c.motor

d)

d.bumper switch

8.

8. The image below is an example of a ___________.

a)

a.limit switch

b)

b.potentiometer

c)

c.motor

d)

d.bumper switch

9.

9. A _______________ is a type of motor that offers precise movement.

a)

a.limit switch

b)

b.potentiometer

c)

c.servo motor

d)

d.bumper switch

10.

10. ______________ sensors detect light and color and are found in a wide variety of devices.

a)

a.optical 

b)

b.potentiometer

c)

c.servo motor

d)

d.bumper switch

11.

11. ___________________ engineering is the practice of creating designs based on structures and sequences from the Earth’s natural world, including its plants, animals, and geographies.

a)

a.Civil

b)

b.Biomimicry

c)

c.Robotics

d)

d.Mechanical

12.

12. The ability of machines to perform tasks that typically require human intelligence, such as learning, problem-solving, and decision-making is known as ____________.

a)

a.Artificial Intelligence

b)

b.Biomimicry

c)

c.Robotics

d)

d.Machine Learning

13.

13.The use and development of computer systems that are able to learn and adapt without following explicit instructions, by using algorithms and statistical models to analyze and draw inferences from patterns in data is known as_________.

a)

a.Artificial Intelligence

b)

b.Biomimicry

c)

c.Robotics

d)

d.Machine Learning

14.

14.____________ focuses on the moral principles that guide engineers in their practice, ensuring they prioritize the public's well-being, uphold integrity, and act responsibly.

a)

a.Artificial Intelligence

b)

b.teachable machine

c)

c.Engineering Ethics

d)

d.Machine Learning

15.

15. ___________ is a web-based program designed to help people develop and train machine-learning models for use in other software applications.

a)

a.Artificial Intelligence

b)

b.teachable machine

c)
d)

d.Machine Learning

16.

16.Electricity is a form of energy that results from the flow of charged particles called____________.

a)

a.electrons

b)

b.current

c)

c.voltage

d)

d.resistance

17.

17. The opposition to current measured as an ohm. 

a)

a.electrons

b)

b.current

c)

c.voltage

d)

d.resistance

18.

18. An electrical device that typically measures voltage, current, and resistance.   

a)

a.breadboard

b)

b.multimeter

c)

c.resistor

d)

d.voltage meter

19.

19. Determine the resistance values or colors of the resistors in the following images:

a)

a.1k Ohms

b)

b.1.2k Ohms

c)

c.1.6k Ohms

d)

d.2k Ohms

20.

20. A typical mobile phone draws 0.5 A current and has an overall resistance of 8 Ω. How many Volts are required to operate the phone? Use Ohm’s Law to solve the problem.

Formula V = IR

a)

a.2V

b)

b.3V

c)

c.4V

d)

d.8V

21.

21. A motorized toy car runs on two AA batteries, providing a total of 3 V. The resistance of the motor in the toy car is 60 Ω. How much current does the toy car draw from the batteries?Use Ohm’s Law to solve the problem.   Formula I = V / R

a)

a.1.05 A

b)

b.5.05 A

c)

c.2.05 A

d)

d.0.05 A

22.

22. A table lamp is connected to a regular 120 V wall outlet and draws 0.5 A current. Find the bulb’s resistance. Use Ohm’s Law to solve the problem.   Formula R = V / I

a)

a.140 Ω

b)

b.240 Ω

c)

c.440 Ω

d)

d.640 Ω

23.

23. Use Ohm’s Law to determine the current draw of an electric saw that is connected to a 120 V circuit and has a resistance of 30 Ω. Formula I = V / R

a)

a.1 A

b)

b.2.4 A

c)

c.3.4 A

d)

d.4 A

24.

24. In a ______________ circuit, all components are connected end-to-end, creating a single path for current flow.

a)

a.series

b)

b.dynamic

c)

c.full

d)

d.parallel

25.

25. In a ________ circuit, components are connected between the same two points, creating multiple paths for current flow.

a)

a.series

b)

b.dynamic

c)

c.full

d)

d.parallel

26.

26. American inventor, ____________ is considered to be one of the most influential inventors in history. Over his lifetime, he was awarded 1,093 United States patents that focused on advancements in electricity, recorded sound, telegraphy, batteries, mining, cement, and motion pictures.

a)

a.Thomas Edison

b)

b.Blaise Pascal

c)

c.Albert Einstein

d)

d.Nicolas Tesla

27.

27. A mechanical function that operates through the force of pressurized liquid.

a)

a.flow rate

b)

b.pressure

c)

c.hydraulic

d)

d.pneumatic

28.

28. A mechanical function that operates through the force of pressurized gas.

a)

a.flow rate

b)

b.pressure

c)

c.hydraulic

d)

d.pneumatic

29.

29. What is the flow rate in gallons per minute of a pump spinning at 1500 rpm with a displacement of 2.75 cubic inches?

a)

a.17.86 gpm

b)

b.7.86 gpm

c)

c.8.67 gpm

d)

d.6.87 gpm

30.

30. How much pressure does a 150-pound woman exert on the floor when she balances on one heel? The area of her heel is 0.625 square inches.

a)

a.40 lb/in2

b)

b.140 lb/in2

c)

c.240 lb/in2

d)

d.340 lb/in2

31.

31.________________, a French mathematician and physicist, developed theories about fluid pressure in the 1640s.

a)

a.Thomas Edison

b)

b.Blaise Pascal

c)

c.Albert Einstein

d)

d.Nicolas Tesla

32.

32. Determine the horsepower the hydraulic system in Figure 4 provides to lift 10,000 pounds given the flow rate and pressure noted.

a)

a.7.75 hp

b)

b.8.75 hp

c)

c.9.75 hp

d)

d.10.75 hp

33.

33. A pneumatic system produces 100 lb/in2 of gauge pressure. A cylinder is needed to press an adhesive label onto a product. It has been determined that 5 lb of force is optimal to complete this task. What is the required area of the pneumatic cylinder?

a)

a.2.05 in2

b)

b.1.05 in2

c)

c.0.05 in2

d)

d.5.05 in2

34.

34. A hydraulic lift system uses two 3-inch diameter cylinders. Workers must determine how much the system is capable of lifting before they can decide on safety limitations. The system runs at a gauge pressure of 2000 lb/in2.

a)

a.71.07 in2

b)

b.17.07 in2

c)

c.27.07 in2

d)

d.7.07 in2

35.

35. The air temperature in a 28 in3 container with a free-sliding piston is initially measured at 45 °F. The temperature is raised to 200 °F.

a)

a.105°R

b)

b.205°R

c)

c.225°R

d)

d.505°R