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2010 CERTIFIED INDUSTRIAL ENGINEER EXAM REVIEW ASSESSMENT - SOLUTIONS
PART I – General Engineering
Engineering Math:
1. In what quadrants do the secant and cosecant of an angle have the same algebraic sign?...
Engineering Math:
1. In what quadrants do the secant and cosecant of an angle have the same algebraic sign?
a. I and II b. I and III c. II and III d. II and IV
Answer: b. I and III
2. The lengths of side AB and side BC of a scalene triangle ABC are 12 cm and 8 cm respectively. The
o
size of angle C is 59 . Find the length of side AC.
a. 12 b. 14 c. 16 d. 18
Answer: b. 14
Let x be the length of side AC. Use the cosine law
122 = 82 + x2 - 2*8*x*cos(59o)
Solve the quadratic equation for x: x = 14.0 and x = -5.7
Elementary Electrical Engineering:
3. Find the equivalent resistance for the circuit shown below.
a. 13.9 ohms b. 12.6 ohms c. 11.1 ohms d. 10.7 ohms
Answer: c. 11.1 ohms
Note that the 4 and 5 are NOT in parallel because the 2 and 8 are in between. The 1 and 2 are NOT in
series because the 4 is in between. The 1 and 7 are NOT in parallel because the 4 is in between. The
only combination you can make (at first) is the 3, 6, and 9 are in series, so:
Now the 5 and 18 are in parallel:
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4. Find the current through the 5 volt source by simplifying the resistors to a single equivalent resistance.
a. 220 mA b. 210 mA c. 200 mA d. 190 mA
Answer: b. 210 mA
The 10 and 20 are in parallel (because the tops and the bottoms are connected so that they share the
same voltage) and the 30 and 40 are in parallel.
Now the two resistors are in series, so:
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