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Tooling U Test Questions and Answers
with Verified Solutions
Which type of fluid flow generates low friction and occurs at a low velocity? ✔✔Laminar flow
Which power variable describes the rate at which a hydraulic system accomplishes work? ✔✔Power
Which statement about hydraulic horsepower (HHP) is true? HHP: ✔✔Increases as flow rate and pressure requirements increase.
What type of damage may occur when a hydraulic system operates above its temperature range? ✔✔Conductor expansion
How is a hydraulic pump's fluid displacement measured? ✔✔Cubic inches or cubic centimeters per revolution
What is the point at which torque and horsepower decrease at higher speeds? ✔✔Peak value
Which hydraulic power variable measures how effectively a pump performs? ✔✔Efficiency
What term describes the amount of hydraulic fluid passing through any component in a hydraulic system in a given amount of time? ✔✔Volume flow rate
How does Pascal's Law apply to hydraulic systems? Pascal's Law results in a/an: ✔✔Equal distribution of pressure.
What industrial noise level is generally considered the maximum for safe human hearing? ✔✔ 80 dBA
What does revolutions per minute measure? ✔✔Rotary speed
Which statement is true about pressure in a hydraulic system? Pressure is: ✔✔Proportional to the applied load and area.
What does a component's working pressure describe? A component's working pressure describes the pressure: ✔✔Required to overcome a load's resistance.
What is the purpose of a directional control valve? A directional control valve: ✔✔Determines where air flows.
Which statement about sequence valves is true? A sequence valve: ✔✔Opens or closes two or more valves in a specific order.
What part of a relief valve covers the exhaust port? ✔✔Ball
How do air regulating valves protect a pneumatic system from overpressure? Air regulating valves: ✔✔Adjust to maintain a steady operating pressure.
What is the function of a pilot-to-close check valve in a pneumatic system? ✔✔Blocks flow in either direction.
In a pneumatic system, where is the filter-regulator-lubricator (FRL unit) located? ✔✔NOT: After a directional control valve (wrong answer)
Which flushing method involves circulating a low-viscosity fluid through a hydraulic system at high speeds? ✔✔Chemical flushing
What type of fluid system failure may result in contaminants settling temporarily on a valve port and preventing the valve from closing? ✔✔Intermittent
What is one way a filter condition indicator monitors filter performance? A filter condition indicator senses: ✔✔Increased pressure drops.
What action should fluid system technicians take first when hydraulic fluid contamination exceeds a system's target cleanliness? ✔✔Connect a bypass-line filter.
What type of contaminant in pneumatic fluid may result in bacteria growth in a pneumatic system? ✔✔Liquids
What does a system's target cleanliness level refer to? Target cleanliness refers to the: ✔✔Lowest level of contamination a system can withstand.
Which statement about hydraulic fluid's role in a fluid system is true? Hydraulic fluid: ✔✔Seals clearances between moving parts.
