Equipment Operation & Maintenance Flashcards
7 cards from real SHS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Equipment Operation & Maintenance flashcards as text
A worker notices hydraulic fluid leaking from a lift truck during operation. What is the correct immediate action?
Answer: Shut down the equipment and tag it out of service
A hydraulic leak indicates a potential failure risk; the equipment must be shut down and tagged out of service immediately.
Which OSHA standard governs the control of hazardous energy (lockout/tagout) during equipment maintenance?
Answer: 29 CFR 1910.147
29 CFR 1910.147 is OSHA's Control of Hazardous Energy standard, commonly known as the lockout/tagout standard.
When must a pre-operational inspection of powered industrial trucks be performed?
Answer: Before each shift or before use if used by multiple shifts
OSHA 29 CFR 1910.178(q)(7) requires powered industrial trucks to be inspected before each shift or before each use if used by multiple operators.
A pressure relief valve on a boiler fails to open at the set pressure. What hazard does this create?
Answer: Risk of pressure vessel rupture or explosion
A failed pressure relief valve allows pressure to exceed safe design limits, risking catastrophic rupture or explosion of the pressure vessel.
Which type of maintenance strategy involves replacing parts based on a fixed time schedule, regardless of condition?
Answer: Preventive maintenance
Preventive maintenance uses scheduled intervals to replace or service parts before failure occurs, regardless of current condition.
An operator is asked to use a grinding wheel rated at 4,000 RPM on a grinder set to run at 5,500 RPM. What should the operator do?
Answer: Refuse and report the mismatched rating to the supervisor
Operating a grinding wheel beyond its rated RPM can cause the wheel to shatter violently; the operator must refuse and report the hazard.
What does the term 'zero energy state' mean in the context of equipment maintenance?
Answer: All energy sources are isolated and residual energy is released or restrained
Zero energy state means all forms of hazardous energy (electrical, pneumatic, hydraulic, gravitational, thermal) are isolated and any stored energy is safely released or blocked.