Guam Engineer, Mechanical Exam
Question 1. Which unit conversion factor correctly converts pounds-force (lbf) to Newtons (N)?
A) 1 lbf = 4.448 N
B) 1 lbf = 0.2248 N
C) 1 lbf = 9.81 N
D) 1 lbf = 0.4536 N
Answer: A
Explanation: The conversion factor from pounds-force to Newtons is 1 lbf = 4.448 N, based on standard
SI unit conversions.
Question 2. Which ethical principle is primarily emphasized in engineering practice to ensure public
safety?
A) Confidentiality
B) Due diligence
C) Public welfare and safety
D) Profit maximization
Answer: C
Explanation: Engineering ethics strongly emphasize safeguarding public welfare and safety as a primary
responsibility of engineers.
Question 3. OSHA standards are primarily concerned with which aspect of engineering work?
A) Design optimization
B) Workplace safety and health regulations
C) Material selection
D) Cost estimation
Answer: B
Explanation: OSHA (Occupational Safety and Health Administration) sets standards to ensure safe and
healthy working conditions.
Question 4. The present worth of a series of future cash flows is used to evaluate which of the
following?
