Page | 1
MECHANICAL TECHNOLOGIST GRADE 1 CWEA
CERTIFICATION EXAM STUDY GUIDE 2025|
BRAND NEW ACTUAL EXAM WITH 100%
VERIFIED QUESTIONS AND CORRECT
SOLUTIONS| GUARANTEED VALUE PACK| ACE
YOUR GRADES.
A 38 tooth gear at 360rpm is driving a gear at 144 rpm, how many
teeth are on the gear that is turning 144rpm? - correct answer - 95
teeth
A trench 18" wide has sewage flowing at a depth of 2'. If the
velocity of the sewage is 1.5 feet per second, what is the flow in
gallons per minute? - correct answer - 18/12 = 1.5'
1.5' x 2' x 1.5'/sec = 4.5ft^3/s
4.5ft^3/s x 60 sec = 270ft^3/min
270ft^3/min x 7.48gal = 2,019.60 gal/min
, Page | 2
What kind of valve is designed to rotate 90 degrees? - correct
answer - 1/4 turn such as a ball valve or a butterfly valve
when pumping a hazardous material what kind of seal is used -
correct answer - A chemical resistant mechanical seal
What causes premature wear of a pump sleeve? - correct answer
- Overtightening of packing gland
What is the safe upper temperature range for a single row ball
bearing? - correct answer - 180 degrees F
What direction does a thrust bearing support? - correct answer - A
horizontal or a vertical axel. It keeps a shaft from moving axially
What is used to measure shaft runout? - correct answer - A dial
indicator
, Page | 3
What is used to cut an inside and out keyway? - correct answer -
A broach
What is used to prevent internal re-circulation on a centrifugal
pump? - correct answer - Wear rings - Proper setting of clearance
between the impeller and the wear plate behind the impeller
What type of pump is a progressive cavity pump? - correct
answer - Positive displacement pump
Where do you apply pressure on a tight fitting bearing being
installed on a shaft? - correct answer - The inner race of the
bearing
What is a crimping tool use for in the electrical world? - correct
answer - To permanently attach electrical fittings to wires
If you find burnt insulation on the lead side of a starter, what does
that indicate? - correct answer - A loose connection
, Page | 4
If a centrifugal pump sounds like it has rocks in it, what does this
indicate? - correct answer - Cavitation (the formation and
breaking of air bubblers on the impeller)
What is a megger used for? - correct answer - test the quality of
the insulation of a wire in relation to the ground
What is used on a large diameter wire to measure current? -
correct answer - A clamp-on amp meter
When using a micrometer torque wrench, what indicates torque
has been reached? - correct answer - The wrench will click
A 150 watt bulb at 110 volts burns for 8 hours, what is the power
used? - correct answer - 150 x 8 = 1200 Watts in 8 hours
A room is 60' by 30' ft and the entire room needs new tile. How
many square feet of tile should be ordered? If 1 square foot of tile
costs $1.12, how much would it cost to retile the entire room? -
correct answer - $2016 for 1800sq ft of tile
MECHANICAL TECHNOLOGIST GRADE 1 CWEA
CERTIFICATION EXAM STUDY GUIDE 2025|
BRAND NEW ACTUAL EXAM WITH 100%
VERIFIED QUESTIONS AND CORRECT
SOLUTIONS| GUARANTEED VALUE PACK| ACE
YOUR GRADES.
A 38 tooth gear at 360rpm is driving a gear at 144 rpm, how many
teeth are on the gear that is turning 144rpm? - correct answer - 95
teeth
A trench 18" wide has sewage flowing at a depth of 2'. If the
velocity of the sewage is 1.5 feet per second, what is the flow in
gallons per minute? - correct answer - 18/12 = 1.5'
1.5' x 2' x 1.5'/sec = 4.5ft^3/s
4.5ft^3/s x 60 sec = 270ft^3/min
270ft^3/min x 7.48gal = 2,019.60 gal/min
, Page | 2
What kind of valve is designed to rotate 90 degrees? - correct
answer - 1/4 turn such as a ball valve or a butterfly valve
when pumping a hazardous material what kind of seal is used -
correct answer - A chemical resistant mechanical seal
What causes premature wear of a pump sleeve? - correct answer
- Overtightening of packing gland
What is the safe upper temperature range for a single row ball
bearing? - correct answer - 180 degrees F
What direction does a thrust bearing support? - correct answer - A
horizontal or a vertical axel. It keeps a shaft from moving axially
What is used to measure shaft runout? - correct answer - A dial
indicator
, Page | 3
What is used to cut an inside and out keyway? - correct answer -
A broach
What is used to prevent internal re-circulation on a centrifugal
pump? - correct answer - Wear rings - Proper setting of clearance
between the impeller and the wear plate behind the impeller
What type of pump is a progressive cavity pump? - correct
answer - Positive displacement pump
Where do you apply pressure on a tight fitting bearing being
installed on a shaft? - correct answer - The inner race of the
bearing
What is a crimping tool use for in the electrical world? - correct
answer - To permanently attach electrical fittings to wires
If you find burnt insulation on the lead side of a starter, what does
that indicate? - correct answer - A loose connection
, Page | 4
If a centrifugal pump sounds like it has rocks in it, what does this
indicate? - correct answer - Cavitation (the formation and
breaking of air bubblers on the impeller)
What is a megger used for? - correct answer - test the quality of
the insulation of a wire in relation to the ground
What is used on a large diameter wire to measure current? -
correct answer - A clamp-on amp meter
When using a micrometer torque wrench, what indicates torque
has been reached? - correct answer - The wrench will click
A 150 watt bulb at 110 volts burns for 8 hours, what is the power
used? - correct answer - 150 x 8 = 1200 Watts in 8 hours
A room is 60' by 30' ft and the entire room needs new tile. How
many square feet of tile should be ordered? If 1 square foot of tile
costs $1.12, how much would it cost to retile the entire room? -
correct answer - $2016 for 1800sq ft of tile
