Questions and Answers
The best way to protect a pressure gauge from pressure surges is by
Hydraulic lines should NEVER be constructed of
The purpose of a bypass line around a system filter is to
If a cylinder has an input pressure of 50 psi and the blank side of the piston is 5 sq.inches, how much total force is applied by the piston?
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A 40% pressure drop across an oil filter screen indicates that the
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An air-breather is installed on a fluid reservoir to
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Which best describes the piston surface area of a single-rod, double-acting piston?
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What kind of valve allows flow in only one direction?
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Pressure on a fluid is
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Shutting the fluid discharge of an air-operated reciprocating pump will cause the pump to
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The main difference between pneumatic cylinders and hydraulic cylinders is that hydraulic cylinders
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Peak hydraulic system demands may be met by the use of
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Air leaving the exhaust port of a four-way valve is directed to the
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In troubleshooting a pneumatic system, you should first check
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The speed of a piston is determined by the
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The safe operating speed of an air motor is controlled by the
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Install an air lubricator in a pneumatic system
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Post heating welded metals
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Before opening the tank valve on an oxygen cylinder which is connected to an oxyfuel cutting torch, you should turn the diaphragm screw
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An advantage of brazing over welding is that with brazing,
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Metallic electrodes for steel alloys should contain
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Study Notes
Pressure Gauge Protection
- Utilize a snubber to protect pressure gauges from surges.
Hydraulic Line Construction
- Avoid using galvanized pipe for hydraulic lines.
Bypass Line Purpose
- Bypass lines around system filters facilitate flow during emergencies.
Force Calculation in Cylinders
- A cylinder with 50 psi input pressure and a 5 sq. inch piston area produces 250 lbs of force.
Oil Filter Screen Pressure Drop
- A 40% pressure drop across an oil filter indicates a dirty screen.
Fluid Reservoir Function
- An air-breather is essential for venting fluid reservoirs.
Piston Surface Area in Cylinders
- Single-rod, double-acting pistons have unequal surface areas.
Directional Flow Valve
- Check valves permit flow in only one direction.
Fluid Pressure Distribution
- Fluid pressure is distributed equally throughout the fluid.
Air-Operated Pump Behavior
- Shutting off the discharge of a reciprocating pump can cause it to overstroke.
Hydraulic vs. Pneumatic Cylinders
- Hydraulic cylinders necessitate return lines, unlike pneumatic cylinders.
Meeting Hydraulic System Demands
- Accumulators help manage peak hydraulic system demands.
Four-Way Valve Exhaust
- Exhaust air from a four-way valve is directed to the atmosphere.
Pneumatic System Troubleshooting
- Prioritize checking the air supply when troubleshooting pneumatic systems.
Piston Speed Determinants
- Piston speed relies on the amount of metered outlet air.
Air Motor Operating Speed
- Safe operating speed for air motors is controlled by load.
Air Lubricator Installation
- Install air lubricators after regulators in pneumatic systems.
Post Heating Welded Metals
- Post-heating increases ductility in welded metals.
Oxygen Cylinder Valve Operation
- Fully turn the diaphragm screw out before opening the tank valve on an oxygen cylinder.
Brazing Advantage
- Brazing allows joining dissimilar metals, unlike welding.
Welding with Metallic Electrodes
- Use electrodes with alloys similar to those of the base metal for steel alloys.
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Description
Prepare for the Ramsay Maintenance Test with this study guide featuring essential flashcards covering crucial topics such as pressure gauges and hydraulic lines. Each card presents a question and its correct answer to help you reinforce your knowledge. Test your understanding and be ready for your certification exam.
