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Engineering Design

Total questions: 51

Worksheet time: 1hrs 13mins

Name
Class
Date
1.

Is the first step in the design process. Includes the problem being identified, validated, and justified. The design requirements are determined and the design brief is created.

a)

prototype

b)

Valid

c)

define the problem

d)

present solution

e)

construct/test prototype

2.

The engineering design process is iterative. This allows engineers to…

a)

become proficient at different engineering software applications

b)

find the most optimal solution to a design problem

c)

Incorporate both math and science concepts into a design problem

3.

Which step is typically included in a systematic design process?

a)

Focusing only on the aesthetic aspects of a solution.

b)

Choosing the first idea that comes to mind.

c)

Evaluating and refining possible solutions.

d)

Ignoring all constraints and criteria.

4.

Step 3 in the Engineering Design Process is....

a)

Brainstorm

b)

Research & Generate Ideas

c)

Identify Criteria & Constraints

d)

Explore Possibilities

e)

Select An Approach

5.

Step 6 in the Engineering Design Process is....

a)

Brainstorm

b)

Research & Generate Ideas

c)

Identify Criteria & Constraints

d)

Explore Possibilities

e)

Select An Approach

6.

Step 10 in the Engineering Design Process is....

a)

Brainstorm

b)

Model or Prototype

c)

Test & Evaluate

d)

Refine

e)

Communicate Results

7.


What is the dial caliper measurement for these four blocks to the nearest thousandth of an inch?
a)
2.200 in.
b)
2.194 in.
c)
2.940 in.
d)
2.294 in.
8.
a)

4.443 inches

b)

4.543 inches

c)

4.43 inches

d)

4.53 inches

9.

The students measured length during a science experiement, they got 12 cm. But the actual measurement was 14.25 cm. What was the percent error?

a)

16%

b)

18.75%

c)

2.25%

d)

18%

10.

The boiling point of a chemical (Ethanol) is 78.40 Degrees Celsius. A Student conducts an experiment and finds the boiling point of 75.0 Degrees Celsius. What is the percent error of the student's measurement?

a)

3.57%

b)

3.44%

c)

96.56%

d)

2.7%

11.

What is the main focus of engineering design compared to product development?

a)

Market analysis and distribution

b)

Technical and functional aspects of the product

c)

Production and marketing

d)

Sales and customer feedback

12.

Why is it important to integrate both engineering design and product development processes when creating a new product?

a)

To ensure the product is aesthetically pleasing

b)

To make the product cheaper

c)

To ensure the product functions technically and is marketable

d)

To reduce the time spent on marketing

13.

What is a Pert Chart?

a)

A Pert Chart is a type of musical notation used in jazz compositions.

b)

A Pert Chart is a type of dessert made with fruit and pastry.

c)

A Pert Chart is a project management tool used to schedule, organize, and coordinate tasks within a project.

d)

A Pert Chart is a type of exercise equipment used for weightlifting.

14.

What do the colored bars represent on this Gantt Chart?

a)

How much money each task costs

b)

The difficulty of each task.

c)

The time for each task to be completed

d)

Who is responsible for each task

15.

What time of schedule tool is shown above?

a)

Project Map

b)

Color Graph

c)

Pert Chart

d)

Gantt Chart

16.

A simple machine that is made up of an incline plane wrapped around a cylinder, often used to hold things together is a...

a)

lever

b)

screw

c)

wedge

d)

pulley

17.
What is effort (input) force?
a)
the force required by a machine in order to accomplish work (the force you put on the machine)
b)
the force which an effort force must overcome in order to do work on an object via a simple machine.
c)
the force the machine exerts on a object
d)
the output work times the input distance
18.
What is resistance (output) force?
a)
the force required by a machine in order to accomplish work (the force you put on the machine)
b)
the force which an effort force must overcome in order to do work on an object via a simple machine.
c)
the force the machine exerts on a object
d)
the output work times the input distance
19.
Which is an example of someone using a simple machine to do work?
a)
a boy runs across a football field
b)
a banker counts money
c)
a mother pushes a stroller up a ramp
d)
a girl eats a sandwich
20.
Using a lever, Joe is able to lift a 10,000 N car off of the ground with a force of 1000 N. What is the mechanical advantage of the lever?
a)
1
b)
10
c)
100
d)
1000
21.

What class lever does this picture show?

a)

1st

b)

2nd

c)

3rd

22.

What type of lever

a)

First Class Lever

b)

Second Class Lever

c)

Third Class Lever

23.
3. Which type of lever is this?
a)

First Class Lever

b)

Second Class Lever

c)

Third Class Lever

24.

What is the IMA of this lever?

a)

1

b)

2

c)

5

d)

.5

25.
A pulley brings a 100 kg piano up into a second story window.  What is the ideal mechanical advantage if the pulley has 5 strands?
a)
20
b)
500
c)
5
d)
0.05
26.
An inclined plane is 15 meters long and raises 3 meter high.  If you want to push a 20 N box up the inclined plane, how much effort force will you need? Remember, FeDe = FrDr
a)
 900 N
b)
4 N
c)
2.25 N
d)
  100 N
27.
Tommy and Jimmy are on a seesaw like the picture.  Tommy weighs 40 lb and Jimmy weighs 30 lb.  What is the Mechanical Advantage when Jimmy makes the two boys level?
a)
1.3
b)
0.75
c)
1
d)
120
28.
Mrs. Cruz wants to lift a bag of chocolates in a crane vending machine.  The chocolate weighs 2 lb.  When she pulled the crane with her force sensor, she saw that she put in 1.5 lb of force effort.  What is the mechanical advantage of the crane?
a)
1.33
b)
0.75
c)
2
d)
1.5
29.

A simple gear train is composed of three gears. Gear A is the driver and has 84 teeth, bear B has 60 teeth, and gear c has 20 teeth. If the output is gear C, what is the gear ratio?

a)

57\frac{5}{7}

b)

31\frac{3}{1}

c)

521\frac{5}{21}

30.

A simple gear train is composed of three gears. Gear A is the driver and has 84 teeth, bear B has 60 teeth, and gear c has 42 teeth. If gear C rotates at 60 rpm, how fast is gear a rotating?

a)

120 rpm

b)

30 rpm

c)

60 rpm

d)

90 rpm

31.

A compound gear train is composed of four gears: A, B, C, and D. Gear A has 120 teeth. Gear B has 12 teeth and shares a shaft with gear C, which has 24 teeth. Gear C is meshed with gear D, the output gear. Power is supplied at gear A with 200 ft. lb of torque and is traveling at 400 rpm. With a torque output of 1600 ft lb, how many teeth should gear D have?

a)

256

b)

512

c)

1024

d)

1920

32.

A mountain bike has a sprocket and chain drive system designed to adjust the force needed by an operator. The system consists of one sprocket driven by the pedals with a diameter of 10 inches, and a second on the back wheel with a diameter of 6.5 inches. If the operator is pedaling at 40 rpm, what is the output speed on the back tire?

a)

61.53 rpm

b)

26 rpm

c)

53.24 rpm

d)

35.72 rpm

33.
Movement in a circular motion
a)
Rotary 
b)
Oscillating
c)
Linear
d)
Reciprocating
34.
Movement that goes back and forth in a straight line
a)
Rotary
b)
Linear
c)
Oscillating
d)
Reciprocating 
35.
The gear train in which diagram provides more torque?
a)
A
b)
B
36.

Are these gears increasing speed or torque?

a)

speed

b)

torque

37.
What is this VEX Robot part?
a)
Bump Switch
b)
Wheel
c)
Sprocket Gear
d)
Axel
38.
Movement along an arched path; back and forth
a)
rotary
b)
oscillating
c)
reciprocating
d)
linear
39.

What is the name of this part?

a)

Omni Wheel

b)

Shaft Collar

c)

Smart Motor

d)

Brain

40.

What is the name of this part?

a)

Low Profile Nut

b)

Brain

c)

Shaft

d)

Shaft Collar Retainer

41.

What is the name of this part?

a)

Star Drive Screw

b)

Standoff

c)

Travel Tire

d)

Rubber Shaft Collar

42.

What is the name of this part?

a)

4 Post Standoff Retainer

b)

Low Profile Bearing Flat

c)

"0.25 Click on Spacer

d)

Rubber Shaft Colar

43.

What is the primary function of the VEX EXP Brain in the Basebot configuration?

a)

To provide structural support to the robot

b)

To control the motors and sensors

c)

To enhance the battery life

d)

To increase the weight for stability

44.

This code snippet would result in which of the following on the Brain Screen?

a)

b)

c)

107 0:09 0:02 on Brain 100% 100%

d)

45.

In the project shown here, what will the intake do when the R1 button is pressed?

a)

The intake will stop spinning

b)

The intake will spin out to push out an object

c)

The intake will spin in to pull in an object

d)

The intake will slow down to 50% velocity

46.

Name the part

a)

optical sensor

b)

battery

c)

distance sensor

d)

bump sensor

47.

How many times will the behaviors in this [Repeat] block be executed?

(a)  

48.

What condition will be checked next if the condition of the Optical Sensor detecting red is FALSE?

a)

The condition of the Bumper Switch being pressed.

b)

The condition of the Optical Sensor detecting green.

c)

The condition of the Optical Sensor detecting blue.

d)

The condition of the Touch LED being pressed.

49.

What will happen if the Front Eye Sensor detects green in this project?

a)

The VR Robot will turn right for 90 degrees.

b)

The VR Robot will turn left for 90 degrees.

c)

The VR Robot will continue to drive forward.

d)

The VR Robot will turn stop driving.

50.

Which Bullseye represents High Accuracy but Low Precisiion

a)

Bullseye A

b)

Bullseye B

c)

Bullseye C

d)

Bullseye D

51.

Which Bullseye represents High Precision but Low Accuracy

a)

Bullseye A

b)

Bullseye B

c)

Bullseye C

d)

Bullseye D

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