ExxonMobil Test ExxonMobil Sample 3 — Questions and Answers
Question 1: A pump operates at 1,750 RPM under normal conditions. A gear reduction of 5:1 is applied. What is the output shaft speed?
- 350 RPM (Correct answer)
- 250 RPM
- 875 RPM
- 500 RPM
Correct answer: 350 RPM
1,750 ÷ 5 = 350 RPM.
Question 2: Which of the following is the BEST description of a process hazard analysis (PHA)?
- A systematic team review to identify and evaluate process hazards before they cause incidents (Correct answer)
- A daily checklist completed by operators to log equipment status
- A post-incident report filed after an accident occurs
- A financial audit of plant operating costs
Correct answer: A systematic team review to identify and evaluate process hazards before they cause incidents
A PHA is a proactive, structured analysis to identify potential hazards before incidents occur.
Question 3: Three workers complete a maintenance task in 12 hours working together. If one worker is removed, how long will the same task take the remaining two workers (assuming equal work rates)?
- 18 hours (Correct answer)
- 16 hours
- 15 hours
- 24 hours
Correct answer: 18 hours
Each worker's rate is 1/36 task/hr; two workers together = 2/36 = 1/18, so the task takes 18 hours.
Question 4: A passage states: 'ExxonMobil invests in low-carbon technologies to reduce emissions.' Which of the following is a logical inference?
- ExxonMobil considers emissions reduction a business priority. (Correct answer)
- ExxonMobil has already eliminated all carbon emissions.
- Low-carbon technologies are exclusively developed by ExxonMobil.
- Carbon reduction is solely the responsibility of ExxonMobil.
Correct answer: ExxonMobil considers emissions reduction a business priority.
Investment in low-carbon technology implies that emissions reduction is a business priority.
Question 5: Which lever arrangement provides a mechanical advantage greater than 1?
- The effort arm is longer than the load arm. (Correct answer)
- The effort arm equals the load arm.
- The load arm is longer than the effort arm.
- The fulcrum is at the end of the lever.
Correct answer: The effort arm is longer than the load arm.
Mechanical advantage = effort arm ÷ load arm; when the effort arm is longer, MA > 1.
Question 6: A facility reports 3 recordable incidents over 400,000 work hours. What is the TRIR (Total Recordable Incident Rate)?
- 1.5 (Correct answer)
- 0.75
- 3.0
- 2.5
Correct answer: 1.5
TRIR = (incidents × 200,000) ÷ hours = (3 × 200,000) ÷ 400,000 = 1.5.
Question 7: You are assigned to a team project with a tight deadline. A colleague is struggling and slowing progress. What is the BEST response?
- Offer to help your colleague while keeping the supervisor informed of the timeline risk (Correct answer)
- Take over all of your colleague's tasks without telling anyone
- Report the colleague's performance to HR immediately
- Focus solely on your own tasks to ensure your portion is done on time
Correct answer: Offer to help your colleague while keeping the supervisor informed of the timeline risk
Helping a struggling colleague while flagging timeline risk is collaborative and transparent.
ExxonMobil Test ExxonMobil Sample 3
A pump operates at 1,750 RPM under normal conditions.
A gear reduction of 5:1 is applied.
What is the output shaft speed?