Introduction to Industrial Maintenance Practice Test

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• What is the difference between preventive maintenance and predictive maintenance?
• Pulley ratio is defined as the ratio of pitch diameter of the driven pulley to the pitch diameter of the driver pulley.
• What is leak-down testing and in which system is it commonly used?
• Which action correctly addresses a soft foot condition on a motor mount?
• In a gear arrangement with a 6-tooth driver and an 18-tooth driven gear, if the driver speed is 1000 RPM, the driven speed is ______ RPM.
• If the driven sprocket has 18 teeth and the driver sprocket has 54 teeth, the sprocket ratio is
• Which maintenance concern is associated with a positive displacement pump?
• What is the purpose of a torque wrench and how should it be calibrated?
• Which of the following is a cause of heat buildup in a bearing along with misalignment?
• When installing a ball bearing on a shaft using an arbor press, it is necessary to apply the pressure to which race?
• In a vibration spectrum analysis, which fault is commonly identified by a characteristic frequency related to rotor speed?
• Which method is commonly used to balance a rotating machine?
• In a gear drive with a 6-tooth driver gear and an 18-tooth driven gear, the gear ratio is ______.
• Angular contact ball bearing can accept what type of loads?
• What does CBM stand for in maintenance strategy?
• In a chain drive system, the torque on the driven shaft will increase as the sprocket ratio increases.
• What is a pneumatic system and what is a common failure mechanism?
• Two shafts connected by a sleeve coupling should be aligned in which directions?
• A floating shaft is characterized by which of the following?
• What is the primary purpose of a Lockout/Tagout (LOTO) program in industrial maintenance?
• The garter spring in a lip seal is used to
• Which sequence best describes the PDCA cycle?
• Why is calibration traceability important in metrology?
• Special bearing and shaft mounting equipment must be used with helical gear drives due to the ____ created by the gear drive.
• In a rapid root cause analysis for sudden plant-line failure, which sequence is commonly followed?
• What is 'soft foot' and why is it important to correct during alignment?
• A right angle drive is one whose shafts lie_____ degrees from each other.
• In gear drives, which measurement is used to calculate gear ratio by comparing two gears' sizes?
• Who may remove a lockout on the power source of a piece of mechanical equipment?
• Which issues are typically identified by thermography in machinery maintenance?
• The grade of a bolt can be determined by
• A grease gun is used to lubricate a bearing by placing the tip of the grease gun onto a ______ fitting
• In a multiple gear drive an idler is used mainly to
• The purpose of a retainer in a ball bearing is to do what?
• Anti friction bearings are divided into two general categories. Which pair represents these categories?
• Which lubricant acts to some extent as a seal against entry of dirt and other contaminants into the bearing?
• An industrial machine foundation is typically made from which material?
• What best defines a maintenance backlog?
• Which maintenance concern is associated with a gear pump?
• What does CMMS stand for and what are its primary benefits in maintenance?
• Which term describes mounting tapered bearings by the indirect method?
• A pillow block housing is designed to support a bearing and provide what function in machinery?
• Which component is typically inside a pillow block housing?
• One revolution per second is equal to how many RPM?
• If the arm radius is 0.25 m and the applied load is 20 N in a Prony brake, the torque is
• What is a hydraulic system's primary purpose and two maintenance considerations?
• Which of the following are factors that influence lubrication interval scheduling?
• Which chain type is most commonly used in mechanical drive applications?
• What are the three components of Overall Equipment Effectiveness (OEE)?
• Which of the following is listed as a safe dress rule when around running machinery?
• Which option correctly identifies two common root causes of pump seal leaks and their mitigations?
• A bearing reduces which quantity between two surfaces while supporting a load?
• The most often used fastener to attach a motor to a bed-plate is a hex head bolt with which combination?
• What is a typical bearing failure mode in high-speed spindle applications?
• Which is NOT a typical gasket material?
• What is spare parts kitting?
• Which phenomenon is caused by mating tooth surfaces welding together and ripping apart?
• Predictive maintenance uses condition monitoring data to decide when to service a component.
• Bolt grade can be determined by
• In the same gear arrangement, if the driver is rotating at 720 RPM, the driven gear's speed is ______ RPM.
• Which statement correctly defines a static o-ring?
• Which instrument is recommended for measuring the inside width of a keyseat?
• What is the purpose of a vibration spectrum (FFT) analysis in machinery maintenance?
• Which balancing method is performed with the machine under operating conditions?
• In a gear drive with a 12-tooth driver gear and an 18-tooth driven gear, the gear ratio is which value?
• The function of a gasket is to
• In a gear drive with 4-tooth driver and 16-tooth driven gear, if the input torque is 4 ft-lbs, the output torque is ______ ft-lbs.
• List three condition monitoring techniques used in CBM.
• Which option best describes how to interpret thermal camera results for electrical faults?
• The basic lubrication interval concept should be determined by...
• Diametral pitch relates to which characteristic of gear teeth?
• To correct a soft foot condition on a motor mount, the recommended action is to
• What does OEE stand for?
• What is a root cause analysis and name two common methods used in it.
• Which of the following is a common bearing failure mode?
• In an anti-friction bearing, which feature primarily keeps the rollers in place and allows rotation?
• Belt span is defined as the distance between the points on the sheaves where the belt touches each sheave.
• Which of the following lists the three types of plain bearings used in industry today?
• What is the primary function of a bearing in a mechanical system?
• In a gear drive with a 4-tooth driver gear and an 16-tooth driven gear, the gear ratio is ______.
• Using which tool to install a bearing on a shaft results in even pressure on the bearing race?
• What is MTBF and how is it used in maintenance planning?
• What is a poka-yoke in maintenance? Provide an example.
• Which statement best describes an advantage claimed by Total Productive Maintenance (TPM) programs?
• Imbalance in a rotating machine can indicate which of the following issues?
• Which method is commonly used to measure oil cleanliness in lubrication systems?
• Which term describes a drive where the shafts are oriented at a right angle to each other?
• What is a safety consideration when working with VFD-driven motors?
• When removing a ball bearing from a shaft using an arbor press, pressure should be applied to what part?
• The component that separates the rollers in an anti-friction bearing and allows them to turn freely is the:
• Which environment factor influences lubrication intervals?
• Which statement best describes hipot testing compared to insulation resistance testing?
• In vibration analysis, what is spectrum analysis and which fault signatures indicate bearing faults?
• What is the PDCA cycle in maintenance primarily used for?
• The immersion method is also known as which method of gear lubrication?
• Backlash in gears is best described as which of the following?
• Labyrinth seals are used when
• What are the three types of loads placed on bearings?
• A common disadvantage of helical gears is the presence of which axial force?
• The function of the garter spring in lip seals is to
• What does MTBF stand for?
• After implementing corrective actions from a root cause analysis, what is important to do?
• What is the typical method to diagnose misalignment using a dial indicator or laser alignment tool?
• What is the function of a machine shaft?
• A pillow block housing has which feature?
• If the intermediate gear is removed from that same three-gear drive, the gear ratio will be
• Which of the following is NOT a plain bearing type?
• The most effective method to remove a hub from a shaft is to use
• Which mounting approach is used to expand or contract the bearing races?
• What is the role of lubrication in bearing life and what is a basic lubrication interval concept?
• Rolling, peening, rippling, and which process are all examples of plastic flow?
• A bevel gear with helical teeth is called a _____ bevel gear
• The best way to install a plain bearing in a bearing housing is using which tool?
• In a ball bearing, the balls are separated and held in place by which component?
• In a three-gear drive with 60 teeth driving, an 8-tooth intermediate gear, and a 12-tooth driven gear, the overall gear ratio is
• What data should a lubrication schedule include?
• In a plain bearing installation, shaft clearance is defined as what?
• Ball bearings have greater capability to run at high speed than roller bearings. Which option best expresses this comparison?
• The indirect mounting method is used for mounting which type of bearings?
• The groove in a shaft designed to accommodate a key is called
• What is an Ishikawa diagram used for?
• Which lubrication method involves immersing gears in an oil bath?
• Which of the following is NOT a standard bearing load type?
• A static o-ring is used between two mating surfaces that
• Describe two types of lubricant failure modes.
• What is a common material used for machine shafts?
• If a gear pair has a 6-tooth driver and 18-tooth driven gear and the driven gear is rotating at 300 RPM, the driver speed is ______ RPM.
• If a gear pair has a 4-tooth driver and an 16-tooth driven gear and the driver torque is 5 ft-lbs, the driven torque is ______ ft-lbs.
• One of the most common causes of lip seal failure is damage that occurs during
• Which of the following is NOT a core component of OEE?
• In oil analysis, what does a high particle count most strongly indicate?
• In a gear drive with a 2-tooth driver gear and an 8-tooth driven gear, if the driver torque is 2.5 ft-lbs, the torque of the driven gear is ______ ft-lbs.
• In a gear drive, which dimension is used to compare the gear ratio?
• Diametral pitch is a relative measure of which gear characteristic?
• The groove in a shaft that accepts a key is called
• Shaft clearance in a plain bearing installation is the difference between which two dimensions?
• Plastic flow is a form of which type of deformation in materials under stress?
• Which option best completes this statement: Gear, drive, or motor irregularities can cause which phenomenon?
• Which of the following is an example of a radial bearing?
• A _____ gear is similar to a spur gear except that its teeth are cut at an angle to the gears axis.
• Which of the following is NOT listed as a common bearing failure mode?
• In spectrum analysis for bearing faults, which signature identifies an outer race defect?
• How do you perform a basic motor thermal check and why is it important?
• The sprocket ratio for a chain drive system having a driven sprocket with 54 teeth and a driver sprocket with 18 teeth is
• What does MTTR stand for?
• Explain shaft alignment and the consequences of misalignment.
• What instrument is best for measuring the inside width of a keyseat or the depth of a keyseat?
• Which of the following is a plain bearing designed for linear motion?
• Name two common diagnostic tests for motor windings besides insulation resistance.
• A belt drive system having a 12 inch driver pulley and a 6 inch driven pulley has a pulley ratio of
• Which statement accurately differentiates a mechanical seal from a packing gland in pumps?
• Prony brake torque is proportional to which quantities?
• Which tool ensures even pressure when installing a bearing on a shaft?
• What is the purpose of the lock collar on a pillow block bearing?
• Which device is used to measure insulation resistance?
• If not specified, to what maximum temperature in degrees Fahrenheit should bearings be heated?
• What is a fail-safe design principle in electrical instrumentation?
• Which of the following could indicate imbalance in a rotating machine?
• If the driven pulley pitch diameter is twice the driver, the pulley ratio is
• Which statement correctly defines MTTR and MTBF?
• Which of the following is not a function of a mechanical system for power transmission?
• What is the most important component in a gear drive system?
• Why is oil cleanliness important in lubrication and how is it measured?
• In a gear train with an idler, the idler's primary function is to
• In lubrication-related heat buildup, which factor is explicitly linked with heat generation alongside misalignment?
• Plain thrust bearings are used where only which type of loads are present?
• Radial bearings support load in which direction relative to the shaft?
• In a LOTO program, what is the purpose of tagging energy sources?
• For high-speed operation, which type of bearing is generally preferred?
• Which condition monitoring technique is used to detect overheating and thermal patterns in equipment?
• How many basic methods are used to lubricate a gear drive system?
• Which statement about condition monitoring in CBM is true?
• In full-film lubrication, the moving surfaces are separated by what?
• Which formula correctly converts horsepower to kilowatts?
• The shim ratio used in leveling a motor mount is defined as which of the following?
• Which maintenance concern is associated with a centrifugal pump?
• In a Prony brake, torque is determined by multiplying the prony arm radius by which quantity?
• Using the formula PkW = P Hp × 0.746, what is the kilowatt equivalent of 100 horsepower?
• Labyrinth seals are designed for applications where
• If the driver speed is 800 RPM for a 4-tooth driver and 16-tooth driven gear, the driven speed is ______ RPM.
• What is thermography used for in maintenance and what is a typical temperature anomaly indicator?
• Which tool is used with an external bearing puller to remove bearings?
• What describes a readiness check before starting a CBM task?
• Which of the following is NOT a standard gear lubrication method?
• As the torque on an electric motor increases, what happens to the current?
• What is the most common type of chain used for mechanical drive?
• All anti-friction bearings require some form of
• A bearing should not be heated to a temperature exceeding how many degrees Fahrenheit unless specified by the bearing manufacturer?
• Which of the following is a typical sign of hydraulic system leakage?
• Which tool is used with an external bearing puller to remove bearings?
• An industrial machine foundation usually consists of which material?
• One disadvantage of helical gears is the generation of which effect?
• Backlash is defined as the difference between which of the following?
• What are the three types of shaft to adjacent shaft power transmission?
• Which metrics would you track to evaluate the effectiveness of a maintenance program?