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Ramsay Maintenance Test Study EXAM QUESTIONS AND ANSWERS The best way to protect a pressure gauge from pressure surges is by A. installing a shutoff valve. B. disconnecting the gauge. C. installing a plug valve. D. using a snubber with the gauge. - Correct Answer-D. using a snubber with the gauge. Hydraulic lines should NEVER be constructed of A. galvanized pipe. B. Teflon-lined hose. C. tubing. D. black steel pipe. - Correct Answer-A. galvanized pipe. The purpose of a bypass line around a system filter is to A. regulate pressure. B. allow passage of flow in case of emergency. C. offer less resistance to flow than bushings. D. require less space than bushings. - Correct Answer-B. allow passage of flow in case of emergency. 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? A. 5 lbs. B. 10 lbs. C. 50 lbs. D. 250 lbs. - Correct Answer-D. 250 lbs.
A 40% pressure drop across an oil filter screen indicates that the A. screen is broken. B. line pressure is too low. C. screen is dirty. D. line pressure is too high. - Correct Answer-C. screen is dirty. An air-breather is installed on a fluid reservoir to A. allow overflow. B. cool the oil. C. vent the reservoir. D. control air pollution. - Correct Answer-C. vent the reservoir. Which best describes the piston surface area of a single-rod, double-acting piston? A. Spring-loaded B. Unequal C. Equal D. Balanced - Correct Answer-B. Unequal What kind of valve allows flow in only one direction? A. Needle B. Check C. Gate D. Globe - Correct Answer-B. Check
Air leaving the exhaust port of a four-way valve is directed to the A. Aftercooler. B. Atmosphere. C. receiver. D. Compressor. - Correct Answer-B. Atmosphere. In troubleshooting a pneumatic system, you should first check A. the air supply. B. the solenoid valve. C. for blown fuses. D. For leaking cylinders. - Correct Answer-A. the air supply. The speed of a piston is determined by the A. amount of metered outlet air. B. size of the piston. C. size of the solenoid valve. D. Limit switch. - Correct Answer-A. amount of metered outlet air. The safe operating speed of an air motor is controlled by the A. load. B. speed reducer. C. regulator D. Limit switch. - Correct Answer-A. load. Install an air lubricator in a pneumatic system
A. before the separator. B. after the regulator. C. before the regulator. D. After the separator, but before the regulator. - Correct Answer-B. after the regulator. Post heating welded metals A. eliminates adhesions. B. prevents oxidation. C. provides more ductility. D. avoids stresses from quick cooling. - Correct Answer-C. provides more ductility. Before opening the tank valve on an oxygen cylinder which is connected to an oxyfuel cutting torch, you should turn the diaphragm screw A. all the way out. B. 12 of the way out. C. 2/3 of the way out. D. all the way in. - Correct Answer-A. all the way out. An advantage of brazing over welding is that with brazing, A. dissimilar metals can be joined. B. a hotter flame may be used. C. no flux is used. D. the fusion is better. - Correct Answer-A. dissimilar metals can be joined. Metallic electrodes for steel alloys should contain
Warpage due to welding can be reduced by A. Increasing the amperage. B. welding the reverse polarity. C. increasing the size of the electrode. D. skip or step welding. - Correct Answer-D. skip or step welding. To arc weld on the structural steel frame of an overhead crane equipped with anti-friction bearings, clamp the ground led to A. the rail of the crane runway. B. the structural member on which you are welding. C. any nearby steel part of the truck assembly that will carry the ground. D. the collector rails. - Correct Answer-B. the structural member on which you are welding. The primary purpose of peening as welding progresses is to A. condition the surface for further welding B. relieve stresses C. clean the scale from the weld. D. Eliminate pores. - Correct Answer-B. relieve stresses What is the maximum safe pressure you can have on the low-pressure side of a fuel gas regulator? A.10 psig B. 15 psig C. 25 psig D. 30 psig - Correct Answer-B. 15 psig
Gas torch tips are usually numbered 0 to 15. The larger the number, the A. greater the tip angle. B. smaller the tip orifice. C. larger the tip orifice. D. longer the tip stem. - Correct Answer-C. larger the tip orifice. A drive sprocket has 15 teeth, and the driven sprocket has 60 teeth. The driven sprocket is damaged and must be replaced, but you only have a 48-tooth sprocket. How many teeth should be on the drive sprocket to maintain the same speed on the machine? A. 12 B. 16 C. 20 D. 190 - Correct Answer-A. 12 In what kind of a properly lubricated bearing is there no metal-to-metal contact while the shaft is rotating? A. Needle bearing B. Ball bearing C. Journal bearing D. Roller bearing - Correct Answer-C. Journal bearing Which of the following can transfer power between two turning shafts located at right angles? A. Spur gears B. Worm gears C. Rack and pinion gears D. Herringbone gears - Correct Answer-B. Worm gears
Fluid clutches are used on equipment that is subjected to A. shock loading. B. misalignment. C. frequent stopping. D. continuous running. - Correct Answer-D. continuous running. Selection of gear reducer size is determined by A. Output shaft diameter B. Lubrication capacity C. Horsepower rating and gear ratio D. environment in which it will be used - Correct Answer-C. Horsepower rating and gear ratio An EP grease would be best suited for which of the flowing? A. High speed, low pressure B. High speed, low temperature C. Low speed, low pressure D. Low speed, high pressure - Correct Answer-D. Low speed, high pressure The viscosity of an oil is affected most by A. contamination. B. resistance to corrosion. C. pressure. D. temperature. - Correct Answer-D. temperature.
Good lubricating oil must A. Be moist and toxic B. Prevents rust and corrosion C. Be clear in color D. Be readily water soluble - Correct Answer-B. Prevents rust and corrosion What is the most important quality of oil film lubrication? A. Separates moving surfaces - Correct Answer-A. Separates moving surfaces A gear pump positive displacement pump is also known as a A. Reciprocating pump B. centrifugal pump C. Rotary pump D. Turbine pump - Correct Answer-C. Rotary pump In a centrifugal pump, "cavitation" can result in A. a slight increase in discharge pressure. B. a general improvement in pump performance. C. a reduction in pump net positive suction head requirements. D. pitting of the impeller. - Correct Answer-C. a reduction in pump net positive suction head requirements. The chemical being pumped determines the required A. casing materials. B. impeller speed.
B. Ball C. Globe D. Gate - Correct Answer-B. Ball When opening a high-pressure steam valve into a cold line, you should? A. Open the valve slowly B. Open the valve quickly C. Open and close the valve several times D. Preheat the line with a torch - Correct Answer-A. Open the valve slowly A pipe fitting which has both internal and external threads is the A. union. B. bushing. C. reducer. D. coupling. - Correct Answer-B. bushing. Which of the pipes listed would have the thickest wall? A. Schedule 20 B. Schedule 40 C. Schedule 80 D. Schedule 120 - Correct Answer-D. Schedule 120 In piping, the designation "250 lb" refers to a fitting's A. material composition. B. weight per section.
C. safe pressure rating. D. support capacity. - Correct Answer-C. safe pressure rating. Pipe joint compounds are used to A. lubricate threads when joining. B. fuse fittings. C. make gaskets. D. seal flanged joints. - Correct Answer-A. lubricate threads when joining. Which of the valves listed can best be used for throttling? A. Plug cock B. Butterfly C. Gate D. Globe - Correct Answer-D. Globe The frequency of operation of a steam trap is governed by A. an automatic timing device. B. the amount of condensate formed in the line. C. the steam pressure in the line. D. the size of the steam line. - Correct Answer-C. the steam pressure in the line. It is good practice to put slope in steam line installations because it A. eliminates condensate pockets. B. decreases the resistance to steam flow. C. Prevents strain due to expansion.
Hoisting equipment, the term "safety factor" means the A. maximum load the equipment will handle without Breaking. B. ratio between the breaking load and the allowed load. C. maximum load allowed for ordinary use. D. ratio between the allowed load and the actual load. - Correct Answer-D. ratio between the allowed load and the actual load. When air is compressed, its temperature A. increases. B. decreases. C. and volume decrease. D. and volume increase. - Correct Answer-A. increases. The major conditions that determine which lubricant should be used are load, temperature, and A. speed of moving parts. B. the type of motion involved. C. how often the machine is used. D. what the machine is used for. - Correct Answer-A. speed of moving parts. When cutting tubing with a hacksaw, use a blade with A. Different size teeth. B. Coarse teeth. C. Fine teeth. D. Reversed teeth. - Correct Answer-A. Fine teeth.
If a 20-tooth sprocket turns at a speed of 10 rpm, how Many rpm will a 10-tooth sprocket turn when driven by the Same chain? A. 100 B. 20 C. 10 D. 5 - Correct Answer-B. 20 In what way does a resisting force always act in relation to an applied force? A. Perpendicular B. Equal and opposite C. Parallel D. On a slant - Correct Answer-B. Equal and opposite Piece of information needed to calculate the force that A hydraulic cylinder can exert is the A. diameter of inlet pipe. B. piston stroke. C. flow rate. D. hydraulic pressure (psi). - Correct Answer-D. hydraulic pressure (psi). What tap is best to start cutting a thread in a piece of metal? A. Centering tap B. Plug tap C. Taper tap
D. Straightedge and thickness gauge - Correct Answer-D. Straightedge and thickness gauge What tap is best to cut threads near the bottom of a blind hole? A. Centering tap B. Plug tap C. Bottoming tap D. Taper tap - Correct Answer-C. Bottoming tap When operating a forklift, A. raise the load as high as possible to avoid obstructing the operator's view. B. only raise the load as high as needed while moving the forklift. C. raise the load 3 feet off the ground. D. it doesn't matter how high the load is raised. - Correct Answer-B. only raise the load as high as needed while moving the forklift. If a burner were functioning properly and set "rich," which one of the following would NOT be present in an exhaust analysis? A.H B. CO C. 02 D. N2 - Correct Answer-B. CO A pilot flame detector can be a A. solenoid. B. flame rod.
C. regulator. D. pressure gauge. - Correct Answer-B. flame rod. Combustion air is normally preheated by using which one of the following? A. Recuperator B. Atomizer C. Premixer D. Dampers - Correct Answer-C. Premixer As flow increases across an orifice plate, the differential pressure developed A. decreases logarithmically. B. increases linearly. C. increases as a square function. D. remains constant. - Correct Answer-C. increases as a square function. All fires require a source of A. hydrogen. B. oxygen. C. nitrogen. D. heat. - Correct Answer-D. heat. Perfect combustion will take place when the right amount of fuel is combined with what gas? A. Carbon B. Oxygen C. Hydrogen
