CWEA Mechanical Technologist Exam Script
2026/2027 | Exam Preparation Guide | A+
Rated
• How does CAL-OSHA define a confined space? -✓✓Limited or restricted means of
entry or exit, large enough to bodily enter and perform work, and is not designed for
continuous human occupancy.
• What section of an MSDS gives safe exposure limits based on OSHA guidelines? -
✓✓Hazardous information and ingredients.
• The tool rest on a grinder should be positioned within
________________________________ of the wheel surface to prevent stock from
getting caught. -✓✓1/8 inch.
• Pneumatic tools should all be equipped with what? -✓✓Air line lubricator.
• What is the purpose of a cage in anti friction bearings? -✓✓Properly space the rolling
elements and guide them through the load zone.
• The reducer located on the suction side of a horizontally mounted centrifugal pump
should be what? -✓✓Eccentric.
• When aligning a piece of equipment what should you do first? -✓✓Complete the
vertical part of the alignment first.
• When dealing with screw threads, UNC stands for what? -✓✓Unified national coarse.
• What is backlash on a gear? -✓✓The play between gears that prevents binding.
• What is the initial step in preparation for installation of machinery? -✓✓Locate the
baselines.
• What is the most popular welding process in use today? -✓✓Shielded metal-arc.
• You have been informed that your centrifugal pump was discharging properly and now
it is not, what is the issue? -✓✓Air or vapor in liquid.
• If you have been given written instructions that you don't understand, what should you
do? -✓✓Ask the author for clarification.
• An SCBA is used for what kind of work? -✓✓Escape and rescue.
,• When is a piece of equipment considered LOTO and safe to work on? -✓✓When you
have brought the machine to zero energy state using LOTO.
• Prescription eyeglasses that can be worn in an industrial setting must be approved by
what agency? -✓✓ANSI.
• What is the device on a power tool that cuts off power when released? -✓✓Deadman
switch.
• What type of saw is designed to cut wood with the grain? -✓✓Ripsaw.
• What are the two primary types of anti-friction bearings? -✓✓Ball and roller.
• What are the two types of positive displacement air compressors? -✓✓Reciprocating
and Rotary.
• What is the purpose of a shaft sleeve? -✓✓Protect the pump shaft.
• What is the purpose of surface skimming sprays? -✓✓Scum collection.
• What is alternating current? -✓✓Current flow that is continuously reversing in
direction.
• What is the area on a centrifugal pump that holds the packing? -✓✓Stuffing box.
• In a mechanical drawing a dashed line ----- represents what? -✓✓A hidden line.
• When ordering sheet steel, you should designate the thickness by what? -✓✓Gauge
number.
• What is the most widely used of all smaller sized pipe valves? -✓✓Globe valve.
• Receiving job instruction and planning equipment use is a part of what? -✓✓Job
preparation.
• Anticipating other tasks or problems does what? -✓✓Sharply reduces the number of
emergencies.
• Making job planning a group effort does what? -✓✓Improves productivity.
• The NEC identifies environments that contain flammable vapors and gases as which
class of hazardous location? -✓✓Class I.
, • What reduces high voltages and currents to safe values for measurements? -
✓✓Instrument transformers.
• What is always required when working in a confined space? -✓✓Continuous air
monitoring.
• Oxygen deficiency occurs when the oxygen level is less than what by volume? -
✓✓19.5% by volume.
• Where is the best place to find out what personal protective gear is necessary when
working with a chemical? -✓✓MSDS or SDS.
• The lack of an unpleasant odor in a manhole, lift station or other structures does not
always mean that dangerous gases are not present because why? -✓✓Some
dangerous gases have no odor.
• What is the first step to take when preparing to perform maintenance or repairs on an
operating piece of equipment? -✓✓Notify all affected employees that equipment is
going to be locked out and explain the reason for the lock out.
• Rubber safety gloves should be tested how often? -✓✓Every 6 months.
• Rubber safety blankets should be tested how often? -✓✓Every 12 months.
• What is the interrupting current of a GFIC receptacle? -✓✓5-6 mA.
• What type of stepladder is forbidden while working on electrical equipment? -
✓✓Aluminum.
• What is the killer of electrical shock? -✓✓Current.
• The relationship between an electric current and a magnetic field is called what? -
✓✓Electromagnetism.
• An on-off switch with overload relays is called what? -✓✓Manual starter.
• The amount of potential difference a layer of insulation can withstand is called what? -
✓✓Dielectric strength.
• What is the current in amperes of a 120-volt circuit with a resistance of 60 ohms, using
Ohm's law? -✓✓2.0 amperes.
• What is the current of a 120-volt circuit with a 1440-watt load? -✓✓12 amperes
2026/2027 | Exam Preparation Guide | A+
Rated
• How does CAL-OSHA define a confined space? -✓✓Limited or restricted means of
entry or exit, large enough to bodily enter and perform work, and is not designed for
continuous human occupancy.
• What section of an MSDS gives safe exposure limits based on OSHA guidelines? -
✓✓Hazardous information and ingredients.
• The tool rest on a grinder should be positioned within
________________________________ of the wheel surface to prevent stock from
getting caught. -✓✓1/8 inch.
• Pneumatic tools should all be equipped with what? -✓✓Air line lubricator.
• What is the purpose of a cage in anti friction bearings? -✓✓Properly space the rolling
elements and guide them through the load zone.
• The reducer located on the suction side of a horizontally mounted centrifugal pump
should be what? -✓✓Eccentric.
• When aligning a piece of equipment what should you do first? -✓✓Complete the
vertical part of the alignment first.
• When dealing with screw threads, UNC stands for what? -✓✓Unified national coarse.
• What is backlash on a gear? -✓✓The play between gears that prevents binding.
• What is the initial step in preparation for installation of machinery? -✓✓Locate the
baselines.
• What is the most popular welding process in use today? -✓✓Shielded metal-arc.
• You have been informed that your centrifugal pump was discharging properly and now
it is not, what is the issue? -✓✓Air or vapor in liquid.
• If you have been given written instructions that you don't understand, what should you
do? -✓✓Ask the author for clarification.
• An SCBA is used for what kind of work? -✓✓Escape and rescue.
,• When is a piece of equipment considered LOTO and safe to work on? -✓✓When you
have brought the machine to zero energy state using LOTO.
• Prescription eyeglasses that can be worn in an industrial setting must be approved by
what agency? -✓✓ANSI.
• What is the device on a power tool that cuts off power when released? -✓✓Deadman
switch.
• What type of saw is designed to cut wood with the grain? -✓✓Ripsaw.
• What are the two primary types of anti-friction bearings? -✓✓Ball and roller.
• What are the two types of positive displacement air compressors? -✓✓Reciprocating
and Rotary.
• What is the purpose of a shaft sleeve? -✓✓Protect the pump shaft.
• What is the purpose of surface skimming sprays? -✓✓Scum collection.
• What is alternating current? -✓✓Current flow that is continuously reversing in
direction.
• What is the area on a centrifugal pump that holds the packing? -✓✓Stuffing box.
• In a mechanical drawing a dashed line ----- represents what? -✓✓A hidden line.
• When ordering sheet steel, you should designate the thickness by what? -✓✓Gauge
number.
• What is the most widely used of all smaller sized pipe valves? -✓✓Globe valve.
• Receiving job instruction and planning equipment use is a part of what? -✓✓Job
preparation.
• Anticipating other tasks or problems does what? -✓✓Sharply reduces the number of
emergencies.
• Making job planning a group effort does what? -✓✓Improves productivity.
• The NEC identifies environments that contain flammable vapors and gases as which
class of hazardous location? -✓✓Class I.
, • What reduces high voltages and currents to safe values for measurements? -
✓✓Instrument transformers.
• What is always required when working in a confined space? -✓✓Continuous air
monitoring.
• Oxygen deficiency occurs when the oxygen level is less than what by volume? -
✓✓19.5% by volume.
• Where is the best place to find out what personal protective gear is necessary when
working with a chemical? -✓✓MSDS or SDS.
• The lack of an unpleasant odor in a manhole, lift station or other structures does not
always mean that dangerous gases are not present because why? -✓✓Some
dangerous gases have no odor.
• What is the first step to take when preparing to perform maintenance or repairs on an
operating piece of equipment? -✓✓Notify all affected employees that equipment is
going to be locked out and explain the reason for the lock out.
• Rubber safety gloves should be tested how often? -✓✓Every 6 months.
• Rubber safety blankets should be tested how often? -✓✓Every 12 months.
• What is the interrupting current of a GFIC receptacle? -✓✓5-6 mA.
• What type of stepladder is forbidden while working on electrical equipment? -
✓✓Aluminum.
• What is the killer of electrical shock? -✓✓Current.
• The relationship between an electric current and a magnetic field is called what? -
✓✓Electromagnetism.
• An on-off switch with overload relays is called what? -✓✓Manual starter.
• The amount of potential difference a layer of insulation can withstand is called what? -
✓✓Dielectric strength.
• What is the current in amperes of a 120-volt circuit with a resistance of 60 ohms, using
Ohm's law? -✓✓2.0 amperes.
• What is the current of a 120-volt circuit with a 1440-watt load? -✓✓12 amperes
