Industrial Mechanics Practice Test

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• The temperature of the air surrounding a piece of equipment.
• How do clearance fits differ from interference fits?
• Which parameter is used as the allowable shear stress in shaft design under torsion?
• A knowledgeable individual to whom the authority and responsibility to perform a specific assignment has been given.
• Which concept uses information from past and current performance records to objectively predict mechanical problems, and is proactive rather than time-based or reactive?
• A cam and follower mechanism is primarily used for?
• Which geometric shape has four right angles and opposite sides that are equal?
• What is the term for an endless power transmission belt with a trapezoidal cross-section?
• Which of the following terms is NOT a standard belt name for trapezoidal cross-section belts?
• Which term describes testing methods that do not damage the material being tested, such as magnetic particle testing, dye penetrant testing, and fluid sampling?
• What is dynamic balancing?
• Ball Bearing - An anti-friction bearing that permits free motion between a moving part and a fixed part by means of balls confined between inner and outer rings.
• Which term best describes the continuous periodic change in displacement with respect to a fixed reference?
• A three-part chain attachment used to assemble and connect the master link to a chain.
• Which term describes the relationship between two quantities such as two to five?
• Which term refers to fastening a part of a rope to another part of the same rope by interlacing it and drawing it tight?
• Name two common hydraulic actuators.
• Which form of oxidation results in metal oxides forming a reddish-brown scale when in contact with water?
• Which of the following is NOT a purpose of lockout/tagout (LOTO) procedures?
• Which term refers to the device used to connect a driver to a driven unit?
• Which belt is endless and has a trapezoidal cross-section for power transmission?
• Which term represents the efficiency measure of energy conversion?
• Which term describes maintenance activities performed on a schedule to prevent failures?
• What is the effect of an open belt drive on the directions of shaft rotation compared to a crossed belt drive?
• Which device allows rotation in one direction and prevents backward motion due to a toothed wheel and pawl?
• The belt designed to transmit power with trapezoidal cross-section is called?
• Gasket - A seal used between machined parts or around pipe joints to prevent the escape of fluids.
• In a single-acting hydraulic cylinder with the rod side vented to atmosphere, the return force is approximately what?
• What is the standard bearing life L10 equation?
• Which statement best describes a datum feature's role in GD&T?
• Which statement correctly differentiates endurance limit and fatigue limit?
• Which term corresponds to using information from past and current performance records to predict mechanical problems, a proactive approach?
• What is the purpose of radial clearance in a journal bearing?
• Which belt type is typically used in mechanical drive systems and features a trapezoidal cross-section?
• Which term measures the greatest amount of straight-pull metal can bear without tearing apart?
• An adjustable-height ladder with a fixed bed section and sliding, lockable fly sections.
• The balancing point of a load.
• The process of preventing the flow of energy from a power source to a piece of equipment is known as which term?
• Which statement correctly defines torque and its unit?
• Which term describes a rail along platform sides and ends?
• A wheel with diameter D = 0.5 meters rotates at N = 900 rpm. What is the rim linear speed v?
• A group of mechanical devices that transfer force, motion or energy input at one device into a similar output at another device is called what?
• What is the term for a location with increased risk due to pressure of flammable materials?
• The bolt torque equation T = k F d describes the relationship between which four variables?
• A crane component used to lift is which item?
• Which term refers to the device that connects the ends of rotating shafts?
• Which term is the systemic elimination of the various parts of a system to locate a malfunctioning part?
• Which belt type is named for its V-shaped cross-section?
• Which conditions must be satisfied for planar static equilibrium of a rigid body?
• What term describes balancing of a rotating part on more than two planes, typically performed with computer software accompanied by vibration analysis and balancing instruments?
• For a beam carrying bending moment M and with section modulus S, which expression gives the bending stress σ?
• Which belt is described as having a trapezoidal cross-section and is used to transmit power?
• Which statement best differentiates preventive maintenance from predictive maintenance?
• Which term is the twisting (rotational) force of a shaft?
• What does H7/g6 indicate in fits terminology?
• Which term refers to a guideline adopted by regulating authorities?
• What is the purpose of preload in bolted joints?
• Total Indicated Runout (TIR) is defined as what?
• What term refers to parts used to connect a driver to a driven unit?
• Which term describes a system used to move material from one point to another within equipment?
• Which term is a fine metal screen that blocks contaminant particles?
• Which statement best describes the difference between static and dynamic balancing?
• What is creep in metals?
• If a gear with z1 = 20 teeth drives a gear with z2 = 40 teeth, what is the gear ratio i?
• What term describes a temporary or movable platform used for workers at height?
• How do you compute power from torque and speed?
• A pump consisting of two meshing gears enclosed in a close-fitting housing.
• Which component is the chain used to lift a load?
• The total amount of axial movement of a shaft.
• A torque of 20 N·m is produced at 1500 rpm. What is the power in kW?
• Which term describes a device that allows two mechanical parts to rotate or slide relative to each other?
• What device keeps material moving in a tank to prevent settling and to mix?
• Which term describes a seal used to prevent leakage between pipe joints?
• Which formula gives the shaft diameter d required to withstand torque T without exceeding the allowable shear stress τ_allow?
• Which term is the balancing point of a load?
• What is the purpose of a torque wrench?
• For use in this analysis the term refers to installing, diagnosing, repairing and maintaining.
• How does viscosity change with temperature?
• Which term is a graphic element that indicates a device?
• Which term describes a temporary structure used to support workers at height?
• Which term refers to the surface contact between a sheave and pulley and the belt, or the sprocket and the chain?
• Angle of twist for a circular shaft under torsion: φ = TL/(GJ). Which expression expresses angle of twist?
• Which term describes a diagram that uses pictures to show the relationships among components in a circuit?
• Which term is the master link connection component used in chains?
• Which term refers to testing methods that do not damage the material being tested?
• What is a device that allows two parts to rotate or move in contact with each other?
• What term describes keeping a machine or system running efficiently with a minimum amount of downtime; including checking for worn parts, lubrication, adjustment, inspection and modification?
• What device is used to engage or disengage a driver to a driven unit?
• Which expression gives the diameter d in terms of torque T and allowable shear stress τ_allow?
• Which factors can cause belt slip in a belt drive, and how can it be prevented?
• For a spur gear pair with teeth z1 and z2, which expression gives the gear ratio i?
• If the diameter of a circular shaft in torsion is doubled while torque remains the same, by what factor does the maximum shear stress change?
• What combination of gears is used to alter the speed and power from a driver to a driven unit?
• Which statement best describes yield strength?
• Which term names a belt used for power transmission with a trapezoidal cross-section?
• A simply supported beam of length L carries a central point load P. What is the maximum bending moment?
• Which term describes a thin-walled, seamless or seamed, hollow cylinder?
• What term describes a rope or strap used to connect a safety harness to an anchor point on a structure?
• What is the term for the relationship between two quantities such as 1:3?
• What is the standard formula for the maximum deflection at midspan of a simply supported beam with a central point load P?
• Which gear type is used to transmit motion between non-parallel shafts?
• What is Geometric Dimensioning and Tolerancing used for?
• A circular shaft of diameter d is subjected to torsion by torque T. Which expression gives the maximum shear stress τ?
• Which option best represents a common sign indicating bearing failure?
• A measure of a component's or system's useful output energy compared to its input energy.
• Which device is used to attach a worker's harness to a lifeline?
• Which term describes a gear with straight teeth parallel to the shaft axis?
• A crane that is mounted between overhead runways is called what?
• What term describes the ratio of the output force of a device to the input force?
• Which term measures the greatest amount of straight-pull metal can bear without tearing apart?
• Which belt is commonly used in drive systems and has an endless loop with trapezoidal cross-section?
• Which term refers to a thin-walled, hollow cylinder?
• Which term describes the systemic elimination of parts of a system to locate a malfunction?
• Which term defines the length of service provided by a bearing?
• How can you verify proper shaft alignment after installation?
• According to Pascal's law, what happens to pressure applied to a confined fluid?
• Which term describes the belt used to transmit power that has a V-shaped cross-section?
• Which term refers to activities based on periodic sampling and inspections; routine scheduling of maintenance activities based on past experience and manufacturers' recommendations?
• A wheel with diameter D = 0.6 meters is rotating at N = 1200 rpm. What is the rim linear speed v?
• What is a datum feature?
• For a single-acting hydraulic cylinder, what is the force on the piston side when pressure P acts on the piston area A?
• What does a hydraulic relief (pressure) valve do?
• How does misalignment affect bearing life?
• Which term is a metallic material formed from fusing two or more metals?
• What is an S-N curve used for?
• Which statement correctly describes a clearance fit?
• Which term denotes the balancing of a rotating part on more than two planes, typically aided by software?
• In a bolted joint subjected to dynamic loading, preload helps to maintain what?
• The chain that raises a load is called which component?
• In GD&T, what is a datum reference frame?
• What is the typical unit for dynamic viscosity?
• For a circular solid shaft transmitting torque T, the polar moment of area J is given by which expression?
• Which description matches a belt with trapezoidal cross-section used for power transmission?
• What is Young's modulus?
• Which term is a metallic material formed from the fusion of two or more metals?
• Which of the following describes the main lubrication regimes in sliding contact?
• Which term is a graphic element that indicates a particular device?
• Contains 1,728 cubic inches (12" x 12" x 12" = 1728 cu in).
• Name a common heat treatment to increase surface hardness.
• The ratio of the output force to the input force of a device is known as what?
• Among the following, which belt is commonly used in drive systems and has a trapezoidal cross-section?
• Which term describes one-half of a circle containing 180 degrees?
• In GD&T, what does a datum feature establish?
• In the deflection formula δ = P L^3 /(48 E I), what does E I represent?
• Which term is least associated with an endless belt designed for power transmission?
• Which quadrilateral has equal opposite sides and four 90° angles?
• Which term describes the outward force produced by a rotating object?
• What system is used to move material from one place to another?
• What is the securing of equipment or machinery in preparation for lifting by rope, chain or webbing called?
• What is the term for the order of a series of operations or movements?
• The action or process of eating away gradually by chemical action.
• Which mechanism consists of a toothed wheel and a spring-loaded pawl?
• Identify the gear that transfers motion and direction in a gear train but does not change speeds.
• Which nondestructive testing method uses magnetic fields to reveal defects?
• What is the primary function of a flexible coupling?
• If torque is constant and shaft diameter is reduced from d to d/2, how does τ change?
• Which term describes a diagram that uses drawings or pictures to show the relationship of each component in a circuit?
• Increasing belt tension generally does what to power capacity and belt life?
• Name two common nondestructive testing methods for evaluating welds and components.
• Given C = 80 kN and P = 40 kN, bearing life L10 is how many revolutions?
• A rail secured to uprights and erected along the exposed sides and ends of a platform.
• A crane that is mounted between overhead runways is called which term?
• Which term refers to a landing surface that provides access or rest from a fixed ladder?
• The process of monitoring the condition of equipment and diagnosing faults through measurement and analysis of vibration within that equipment.
• State the relation among torque, angular velocity, and power.
• The outward force produced by a rotating object.
• For a simply supported beam with a uniform distributed load w per unit length, what is the maximum bending moment?
• Which instrument is commonly used to verify shaft alignment after installation?
• Which expression correctly gives rim speed v in terms of diameter D (meters) and rotation speed N (rpm)?
• Which of the following is not a GD&T tolerance category?
• If a shaft transmits torque T through diameter d, how does doubling d affect the maximum shear stress τ (assuming T is constant)?
• A device that connects the ends of rotating shafts.
• What term describes the performance and engineering standards for a particular machine as detailed by the manufacturer, typically available from drawings, manuals and bulletins provided by the manufacturer?
• Which term refers to the continuous periodic change in displacement with respect to a fixed reference?
• What is static balancing?
• A location where there is an increased risk of fire or explosion due to the pressure of flammable gases, vapours, liquids, combustible dusts, or easily ignitable fibres or flyings is called which term?
• How is shaft runout measured with a dial indicator?
• If pressure is 100 bar and piston area is 0.01 m^2, what is the force on the piston side?
• Which statement best describes yield strength versus ultimate tensile strength?