ExxonMobil Test ExxonMobil Sample 4 — Questions and Answers
Question 1: A heat exchanger transfers energy at 85% efficiency. If 60,000 BTU/hr is supplied, how much useful heat energy is transferred?
- 51,000 BTU/hr (Correct answer)
- 55,000 BTU/hr
- 48,000 BTU/hr
- 57,000 BTU/hr
Correct answer: 51,000 BTU/hr
60,000 × 0.85 = 51,000 BTU/hr.
Question 2: Which statement about Material Safety Data Sheets (MSDS/SDS) is CORRECT?
- They provide hazard information, handling procedures, and emergency response guidance for chemicals. (Correct answer)
- They are only required for radioactive materials.
- They list the financial value of chemical inventories.
- They are optional documents for low-hazard chemicals.
Correct answer: They provide hazard information, handling procedures, and emergency response guidance for chemicals.
SDS documents are mandatory and cover hazard identification, safe handling, and emergency procedures for all hazardous chemicals.
Question 3: A sequence of numbers: 3, 6, 12, 24, ___. What comes next?
- 48 (Correct answer)
- 36
- 42
- 32
Correct answer: 48
Each term doubles the previous; 24 × 2 = 48.
Question 4: A passage reads: 'Upstream operations include exploration and extraction of oil and gas.' Which activity is classified as upstream?
- Drilling a new oil well (Correct answer)
- Refining crude oil into gasoline
- Distributing fuel to retail stations
- Marketing petroleum products to consumers
Correct answer: Drilling a new oil well
Drilling is an extraction activity, placing it firmly in the upstream segment.
Question 5: A hydraulic system uses a small piston of area 5 cm² and a large piston of area 50 cm². If a force of 100 N is applied to the small piston, what force is exerted by the large piston?
- 1,000 N (Correct answer)
- 500 N
- 250 N
- 2,000 N
Correct answer: 1,000 N
Force ratio equals area ratio: 100 × (50/5) = 1,000 N.
Question 6: A refinery produces 180,000 barrels per month. If 40% is diesel, 35% is gasoline, and the rest is jet fuel, how many barrels of jet fuel are produced monthly?
- 45,000 (Correct answer)
- 63,000
- 72,000
- 54,000
Correct answer: 45,000
Jet fuel = 100% − 40% − 35% = 25%; 180,000 × 0.25 = 45,000 barrels.
Question 7: During a situational judgment scenario, you discover that a co-worker has bypassed a required lockout/tagout (LOTO) procedure. What is the MOST appropriate action?
- Stop the work immediately, secure the equipment, and report the violation to the supervisor (Correct answer)
- Warn the co-worker privately and allow them to continue if they promise to comply next time
- Document the incident in a personal log but take no immediate action
- Complete the task with the co-worker and file a report at the end of the shift
Correct answer: Stop the work immediately, secure the equipment, and report the violation to the supervisor
LOTO violations create immediate life-threatening hazards and must be stopped and reported immediately.
ExxonMobil Test ExxonMobil Sample 4
A heat exchanger transfers energy at 85% efficiency.
If 60,000 BTU/hr is supplied, how much useful heat energy is transferred?