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ENGR 103 FINAL Exam Questions With Correct Answers

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ENGR 103 FINAL Exam Questions With Correct Answers A ladder leans against a building. The base of the ladder is 6 feet located from the building. The ladder reaches a vertical height of 15 feet on the building. What is the length of the ladder? - answer16 Feet A cube has a side length of 10.5 ...

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  • October 16, 2024
  • 16
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Engr 103
  • Engr 103
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sirjoel
©SIRJOEL EXAM SOLUTIONS
12/3/2024 11:27AM



ENGR 103 FINAL Exam Questions With
Correct Answers


A ladder leans against a building. The base of the ladder is 6 feet located from the building. The

ladder reaches a vertical height of 15 feet on the building. What is the length of the ladder? -

answer✔16 Feet


A cube has a side length of 10.5 m. What is the length of the diagonal from the bottom front left

hand corner to the top back right corner - answer✔18.2 m


Convert 6840 kcal/cm^3 to Btu/ft^3 - answer✔7.69*10^8 Btu/ft^3


Convert 52.0 mph to mm/s - answer✔2.32*10^4 mm/s


Which of the following is correct (true) with respect to dimensions?

A. The 7 fundamental dimensions are meter, second, kilogram, Celsius, mole, ampere, and

Candela.

B. Dimensions and units are synonymous terms in science and engineering .

C. The use of dimensions comes from uncertainty in engineering measurements used to make

calculations.

, ©SIRJOEL EXAM SOLUTIONS
12/3/2024 11:27AM


D. Two terms can be multiplied even if they are not dimensionally homogeneous.

E. If two terms in an expression have the same dimensions, they must have the same units. -

answer✔D. Two terms can be multiplied even if they are not dimensionally homogeneous.


What must the dimensions of a and k be in order to make equation 4M^3L^-2T=asin(kT^-2M)

dimensionally homogeneous? - answer✔a=M^3L^-2T^1


k=T^2M^-1

T/F The equation

R=(8u^2l)/(pi*r^3)

is dimensionally homogenous when given the following units for the variables.

R=kg/m^4*s

u=g/cm*s

l=ft


r=in - answer✔False


How many significant figures are in the number 0.002? - answer✔One


How many significant figures are in the number 10.00? - answer✔Four


How many significant figures are in the answer to 12.01 divided 2? - answer✔One

, ©SIRJOEL EXAM SOLUTIONS
12/3/2024 11:27AM


Which skill in the list should students expect from this class, based on the lectures to date?




A. Proficiency in AutoCAD

B. Learning to differentiate multivariable terms

C. Learning to formulate math

models of physical things to predict behavior.

D. Elementary Statistical analysis


E. Determining thermal equilibrium for conduction. - answer✔C. Learning to formulate math

models of physical things to predict behavior


Convert 43,836 Pascals to units of atm. - answer✔0.43263


The cross sectional area of the beam is 480 sq in. What is its cross-sectional are in sq meters?

Use engr sig figs for rounding. - answer✔3.10*10^-1 sq meters


An object has a mass of 5.39 slugs. What is its weight on earth in units of lbf (g=32.2 ft/s^2)? -

answer✔1.74*10^2 lbf


Convert 83 (kg*m^3)/s to (g*cm^2)/s - answer✔8.3 * 10^10 (g*cm^2)/s


What conversion factor converts force to mass? - answer✔Force cannot be converted to mass.

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