Introduction to Engineering
Hope College ENGS-100
Fall 2010
Exam 2 Practice Problems
ANSWERS
1.) (d) 4.79 N
2.) (d) 234 N
3.) 3863 N
4.) 2.91 x 10-5 m
5.) 3.5 MPa and 1.05 mm
6.) 328 lbf and 337 lbf (1457 N and 1498 N)
7.) 3395 N and 3920 N
8.) Area = 0.0

Introduction to Engineering - ENGS 100
Photovoltaic Energy Conversion (version 1.1)
In this lab a variety of measurements we will:
Develop a familiarity with the capabilities of photovoltaic devices in engineered
systems.
Determine the relative efficien

Introduction to Engineering - ENGS 100
Lab 7
Microcontroller Design Assignment
There is no final report for the microcontroller labs. Instead there is a final assignment.
Complete and bring to lab on 10/25, 10/26, 10/27, or 10/28.
Assignment
With the fami

Introduction to Engineering
Hope College ENGS-100
Fall 2010
Final Exam Practice Problems
1.) An aluminum bar as shown is loaded just up to the yield point. What is the total elongation of the bar?
For aluminum the yield stress is 255 MPa and E is 69 GPa.

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Introduction to Engineering:
Functions, Components, &
Systems
John Krupczak, Jr.
Hope College
Fall 2010
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Goal
Develop a perspective or approach to
understanding the wide variety of
technical products developed and used
by people.
Develop knowledg

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Introduction to Engineering:
Functions, Components, &
Systems
John Krupczak, Jr.
Hope College
Fall 2010
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(3) Technical System
Utility Model
Technical System
What is meant by a system
In this case:
System = any human made object
regardless o

Aircraft - Wings
Airplane
Critical component in modern transportation.
Helps make global economy possible
Major aspect of national defense
More than 500 million passengers in 2005 (est)
1800s Otto Lillenthal glider experiments
1903 Wright Bros first fligh

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Introduction to Engineering:
Functions, Components, &
Systems
John Krupczak, Jr.
Hope College
Fall 2010
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Flows Into and Out of
Systems
Flow Classification
Examples of flows
Example
Physical Science Concepts
Physics Concepts
Mass = quantit

Introduction to Engineering - ENGS 100 Hope College - Fall 2010
Photovoltaic Energy Conversion Lab 3
Design and Construction of PV System
In this lab you construct a photovoltaic system of your own design. This will build on the
information that you have

ENGS 100 Fall 2010 Exam 2 Practice Problems
One problem per page
All problem solving steps must be included (diagram too)
One or more of these problems will appear exactly as is on the exam
1.) Determne the magnitude of resultant force for the concurrent

Introduction to Engineering Hope College ENGS-100
Fall 2010
Exam 1
Practice Problems
Complete all practice problems.
Turn in at the start of the exam.
If the practice problems are correct you will receive 10 points extra credit on the exam
Studying
Rework

Introduction to Engineering
ENGS 100
Fall 2010
Friday 12/10/10
We have 2 Final Exams!
Lecture Final EXAM: Thursday 12:30-2:30
Final is scheduled for Thursday 12/16/10 from 12:30 2:30 pm in Vanderwerf 104 (usual
classroom). Exam will be cumulative. Exam sh

Introduction to Engineering
Hope College ENGS-100
Fall 2010
Exam 2 Information
In Class Friday November 12, 2010
Topics on Exam
Exam will inlcude material from Assignments #11-14
Mechanics (Chapter 4 Hagen)
Forces, Force Equilibrium, Stress-Strain, Hookes

Introduction to Engineering Hope College ENGS-100
Fall 2010
Exam 1 Information PLEASE READ CAREFULLY
EXAM WILL BE WED 10/20/10 IN CLASS
Topics on Exam
Unit Conversion
Electric Circuits (Chapter 5)
Nature of Technical Systems (basic ideas, similar to homew

Introduction to Engineering - ENGS 100 Hope College - Fall 2010
Photovoltaic Energy Conversion Solar Photovoltaic Battery Recharger
In this part of the lab you will construct photovoltaic battery recharger. Photovoltaic cells are
used to generate current

Introduction to Engineering:
Functions, Components, & Systems
Lecture 2
Whats the Problem?
Whats the Problem?
National Academy of Engineering
Engineers are creative problem-solvers.
Engineering is essential to our health, happiness, and safety.
Engineers

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Introduction to Engineering:
Functions, Components, &
Systems
John Krupczak, Jr.
Hope College
Fall 2010
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(5) Main Idea
Overall function accomplish
through subfuctions
Subfunctions provided by
components
Components combine to form
systems
(5)