FLORIDA ENGINEERING INTERN/FE EXAMINATION NEWEST EVALUATED EXAM
PRACTICE 100 QUESTIONS 2025-2026|ORIGINAL QUESTIONS & ANSWERS
|DETAILED RATIONALES |HINTED COMPLETE EXAM PREP GRADED A+*INSTANT
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1. A projectile is launched from ground level with an initial speed of 40 m/s at
an angle of 30° above the horizontal. Neglecting air resistance, what is the
maximum horizontal range?
A. 70.7 m
B. 100.0 m
C. 141.4 m
D. 173.2 m
Answer: B. 100.0 m
The range is . Thus m. Therefore the correct choice is actually C. 141.4 m.
2. If , at which value of does the function have a local maximum?
A. 0
B. 1
C. 2
D. 3
Answer: B. 1
The derivative is . The derivative changes from positive to negative at , giving a
local maximum.
3. A random variable has mean 50 and standard deviation 8. Assuming a
normal distribution, approximately what percentage of observations lie
between 34 and 66?
A. 68.3%
B. 90.0%
C. 95.4%
D. 99.7%
,Answer: C. 95.4%
The limits are two standard deviations below and above the mean. Approximately
95.4% of a normal population lies within ±2 standard deviations.
4. A $20,000 investment earns 6% annual interest compounded continuously.
What is its approximate value after 5 years?
A. $25,000
B. $26,000
C. $27,000
D. $28,000
Answer: C. $27,000
Using , .
5. A steel rod has an original length of 2.0 m and elongates by 1.2 mm under
load. What is the engineering strain?
A. 0.00006
B. 0.00060
C. 0.0060
D. 0.0600
Answer: B. 0.00060
Engineering strain equals change in length divided by original length: .
6. A simply supported beam carries a concentrated load of 20 kN at its
midpoint. If the span is 6 m, what is the vertical reaction at each support?
A. 5 kN
B. 10 kN
C. 15 kN
D. 20 kN
Answer: B. 10 kN
Symmetry requires equal reactions. Their sum must equal the 20-kN applied load.
, 7. A 10-kg object is accelerated horizontally at 3 m/s². What net force acts on
it?
A. 3.0 N
B. 13.0 N
C. 30.0 N
D. 98.1 N
Answer: C. 30.0 N
Newton's second law gives N.
8. Water flows through a pipe that decreases in diameter from 100 mm to 50
mm. If the upstream velocity is 2 m/s, what is the downstream velocity for
incompressible steady flow?
A. 0.5 m/s
B. 2 m/s
C. 4 m/s
D. 8 m/s
Answer: D. 8 m/s
Continuity requires . The area decreases by a factor of four, so velocity increases by
a factor of four.
9. A Carnot engine operates between reservoirs at 600 K and 300 K. What is its
maximum theoretical thermal efficiency?
A. 25%
B. 40%
C. 50%
D. 75%
Answer: C. 50%
Carnot efficiency is .
10.A 120-V circuit supplies a 12-Ω resistive load. What current flows?
, A. 0.1 A
B. 5 A
C. 10 A
D. 1440 A
Answer: C. 10 A
Ohm's law gives A.
11.Two resistors of 6 Ω and 3 Ω are connected in parallel. What is their
equivalent resistance?
A. 1 Ω
B. 2 Ω
C. 4.5 Ω
D. 9 Ω
Answer: B. 2 Ω
For parallel resistors, , so Ω.
12.A 10-kN force acts at an angle of 60° above the positive x-axis. What is its
vertical component?
A. 2.5 kN
B. 5.0 kN
C. 8.66 kN
D. 10.0 kN
Answer: C. 8.66 kN
The vertical component is kN.
13.A machine requires 15 kW of useful output while operating at 75%
efficiency. What input power is required?
A. 11.25 kW
B. 15.0 kW
C. 20.0 kW
D. 25.0 kW
PRACTICE 100 QUESTIONS 2025-2026|ORIGINAL QUESTIONS & ANSWERS
|DETAILED RATIONALES |HINTED COMPLETE EXAM PREP GRADED A+*INSTANT
DOWNLOAD PDF*
1. A projectile is launched from ground level with an initial speed of 40 m/s at
an angle of 30° above the horizontal. Neglecting air resistance, what is the
maximum horizontal range?
A. 70.7 m
B. 100.0 m
C. 141.4 m
D. 173.2 m
Answer: B. 100.0 m
The range is . Thus m. Therefore the correct choice is actually C. 141.4 m.
2. If , at which value of does the function have a local maximum?
A. 0
B. 1
C. 2
D. 3
Answer: B. 1
The derivative is . The derivative changes from positive to negative at , giving a
local maximum.
3. A random variable has mean 50 and standard deviation 8. Assuming a
normal distribution, approximately what percentage of observations lie
between 34 and 66?
A. 68.3%
B. 90.0%
C. 95.4%
D. 99.7%
,Answer: C. 95.4%
The limits are two standard deviations below and above the mean. Approximately
95.4% of a normal population lies within ±2 standard deviations.
4. A $20,000 investment earns 6% annual interest compounded continuously.
What is its approximate value after 5 years?
A. $25,000
B. $26,000
C. $27,000
D. $28,000
Answer: C. $27,000
Using , .
5. A steel rod has an original length of 2.0 m and elongates by 1.2 mm under
load. What is the engineering strain?
A. 0.00006
B. 0.00060
C. 0.0060
D. 0.0600
Answer: B. 0.00060
Engineering strain equals change in length divided by original length: .
6. A simply supported beam carries a concentrated load of 20 kN at its
midpoint. If the span is 6 m, what is the vertical reaction at each support?
A. 5 kN
B. 10 kN
C. 15 kN
D. 20 kN
Answer: B. 10 kN
Symmetry requires equal reactions. Their sum must equal the 20-kN applied load.
, 7. A 10-kg object is accelerated horizontally at 3 m/s². What net force acts on
it?
A. 3.0 N
B. 13.0 N
C. 30.0 N
D. 98.1 N
Answer: C. 30.0 N
Newton's second law gives N.
8. Water flows through a pipe that decreases in diameter from 100 mm to 50
mm. If the upstream velocity is 2 m/s, what is the downstream velocity for
incompressible steady flow?
A. 0.5 m/s
B. 2 m/s
C. 4 m/s
D. 8 m/s
Answer: D. 8 m/s
Continuity requires . The area decreases by a factor of four, so velocity increases by
a factor of four.
9. A Carnot engine operates between reservoirs at 600 K and 300 K. What is its
maximum theoretical thermal efficiency?
A. 25%
B. 40%
C. 50%
D. 75%
Answer: C. 50%
Carnot efficiency is .
10.A 120-V circuit supplies a 12-Ω resistive load. What current flows?
, A. 0.1 A
B. 5 A
C. 10 A
D. 1440 A
Answer: C. 10 A
Ohm's law gives A.
11.Two resistors of 6 Ω and 3 Ω are connected in parallel. What is their
equivalent resistance?
A. 1 Ω
B. 2 Ω
C. 4.5 Ω
D. 9 Ω
Answer: B. 2 Ω
For parallel resistors, , so Ω.
12.A 10-kN force acts at an angle of 60° above the positive x-axis. What is its
vertical component?
A. 2.5 kN
B. 5.0 kN
C. 8.66 kN
D. 10.0 kN
Answer: C. 8.66 kN
The vertical component is kN.
13.A machine requires 15 kW of useful output while operating at 75%
efficiency. What input power is required?
A. 11.25 kW
B. 15.0 kW
C. 20.0 kW
D. 25.0 kW
