CWEA Mechanical Technologist II Exam Question and Revised Answers
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Course
CWEA Mechanical Technologist II
Institution
CWEA Mechanical Technologist II
CWEA Mechanical Technologist II Exam Question and Revised Answers
Carbon Dioxide fire extinguishers are intended for use on what class of fires? - answersClass B and class C
How does CAL-OSHA define a confined space? - answersLimited or restricted means of entry or exit, large enough to bodil...
CWEA Mechanical Technologist II Exam
Question and Revised Answers
Carbon Dioxide fire extinguishers are intended for use on what class of fires? -
answers✔✔Class B and class C
How does CAL-OSHA define a confined space? - answers✔✔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? -
answers✔✔Hazardous information and ingredients.
The tool rest on a grinder should be positioned within
________________________________ of the wheel surface to prevent stock from getting
caught. - answers✔✔1/8 inch.
Pneumatic tools should all be equipped with what? - answers✔✔Air line lubricator.
What is the purpose of a cage in anti friction bearings? - answers✔✔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? - answers✔✔Eccentric.
When aligning a piece of equipment what should you do first? - answers✔✔Complete the
vertical part of the alignment first.
When dealing with screw threads, UNC stands for what? - answers✔✔Unified national
coarse.
What is backlash on a gear? - answers✔✔The play between gears that prevents binding.
What is the initial step in preparation for installation of machinery? - answers✔✔Locate the
baselines.
What is the most popular welding process in use today? - answers✔✔Shielded metal-arc.
You have been informed that your centrifugal pump was discharging properly and now it is
not, what is the issue? - answers✔✔Air or vapor in liquid.
If you have been given written instructions that you don't understand, what should you do? -
answers✔✔Ask the author for clarification.
An SCBA is used for what kind of work? - answers✔✔Escape and rescue.
When is a piece of equipment considered LOTO and safe to work on? - answers✔✔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? - answers✔✔ANSI.
What is the device on a power tool that cuts off power when released? - answers✔✔Deadman
switch.
What type of saw is designed to cut wood with the grain? - answers✔✔Ripsaw.
What are the two primary types of anti-friction bearings? - answers✔✔Ball and roller.
What are the two types of positive displacement air compressors? - answers✔✔Reciprocating
and Rotary.
What is the purpose of a shaft sleeve? - answers✔✔Protect the pump shaft.
What is the purpose of surface skimming sprays? - answers✔✔Scum collection.
What is alternating current? - answers✔✔Current flow that is continuously reversing in
direction.
What is the area on a centrifugal pump that holds the packing? - answers✔✔Stuffing box.
In a mechanical drawing a dashed line ----- represents what? - answers✔✔A hidden line.
When ordering sheet steel, you should designate the thickness by what? - answers✔✔Gauge
number.
What is the most widely used of all smaller sized pipe valves? - answers✔✔Globe valve.
Receiving job instruction and planning equipment use is a part of what? - answers✔✔Job
preparation.
Anticipating other tasks or problems does what? - answers✔✔Sharply reduces the number of
emergencies.
Making job planning a group effort does what? - answers✔✔Improves productivity.
The NEC identifies environments that contain flammable vapors and gases as which class of
hazardous location? - answers✔✔Class I.
What reduces high voltages and currents to safe values for measurements? -
answers✔✔Instrument transformers.
What is always required when working in a confined space? - answers✔✔Continuous air
monitoring.
Oxygen deficiency occurs when the oxygen level is less than what by volume? -
answers✔✔19.5% by volume.
Where is the best place to find out what personal protective gear is necessary when working
with a chemical? - answers✔✔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? - answers✔✔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? - answers✔✔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? - answers✔✔Every 6 months.
Rubber safety blankets should be tested how often? - answers✔✔Every 12 months.
What is the interrupting current of a GFIC receptacle? - answers✔✔5-6 mA.
What type of stepladder is forbidden while working on electrical equipment? -
answers✔✔Aluminum.
What is the killer of electrical shock? - answers✔✔Current.
The relationship between an electric current and a magnetic field is called what? -
answers✔✔Electromagnetism.
An on-off switch with overload relays is called what? - answers✔✔Manual starter.
The amount of potential difference a layer of insulation can withstand is called what? -
answers✔✔Dielectric strength.
What is the current in amperes of a 120-volt circuit with a resistance of 60 ohms, using
Ohm's law? - answers✔✔2.0 amperes.
What is the current of a 120-volt circuit with a 1440-watt load? - answers✔✔12 amperes
What is the current of a circuit that consumes 625 watts through a 12.75-ohm resistor? -
answers✔✔7 amperes.
A wet well measures 30 feet deep, 25 feet wide and 35 feet long. What is the capacity in
gallons? - answers✔✔196,350 gal.
What is the amp-load of a three-phase, 0.5-hp, 230-volt motor with an efficiency rating of
92% and a power factor of 80%? - answers✔✔1.27 amps.
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