GRADE 1 MECHANICAL TECHNOLOGIST STUDY GUIDE| ACTUAL EXAM-
LATEST UPDATE 2025 | COMPLETE QUESTIONS WITH CORRECT DETAILED
AND VERIFIED ANSWERS-MOSTLY TESTED | RATED 100% CORRECT-
GUARANTEED PASS!! ALREADY GRADED A+
Which welding process is most commonly used for small pipe maintenance welding? -
(answers)Oxyacetylene gas welding
What is the proper definition of an engine? - (answers)It is a machine designed to convert energy
into useful mechanical motion
What is wet stacking and how can it be prevented? - (answers)It is unburned fuel collecting in
the exhaust due to light or no load conditions.
To check flywheel face runout, where should the dial indicator be positioned? - (answers)The
base on the bell housing and pointer on the flywheel face.
If a 38-tooth gear running at 360 rpm is driving another gear at 144 rpm, what is the number of
teeth on the driven gear? - (answers)Solution: driver Gear x Driver RPM=Driven Gear x Driven
RPM
38 x 360 = N x 144
13,680 = 144N
13, = 144N / 144
95 = N
(95 Tooth Gear
Which of the following is required for a sealed ball bearing? - (answers)It does not need to be
lubricated under normal use.
,A DAFT is an acronym meaning: - (answers)Dissolved Air Flotation Thickener.
What is the governing agency that permits odor control systems? - (answers)AQMD: Air Quality
Management District
At what pressure rating would you use a blower instead of a fan? - (answers)7 PSI
Which of the following valves is unsuitable for high-pressure flow? - (answers)A needle valve
A sodium hypochlorite tank's full working capacity is 23,000 gallons. Its current level is at 1,200
gallons. How many gallons does the delivery driver need to add to bring it to 70% capacity? -
(answers)Solution:
23,000 gallons max capacity x 70% desired capacity = 16,100 gallons desired.
16,100 gallons desired - 1,200 gallons current level
14,900 gallons needed to add
What is the result if 6/8 " is converted to decimal form? - (answers) = 0.75 or .75
What is the conversion of 212 degrees Fahrenheit into Celsius?
What is the conversion of 100 degrees Celsius into Fahrenheit? - (answers)C° = (F° - 32)/9 x 5
•Begin by subtracting 32 from the Fahrenheit number.
•Divide the answer by 9.
•Then multiply that answer by 5.
To convert from Celsius to Fahrenheit:
F° = (C° x 9/5) +32•Begin by multiplying the Celsius temperature by 9.
,•Divide the answer by 5.
•Now add 32.
=212 degrees F
Why would you not paint a wooden ladder OSHA yellow? - (answers)The Color can hide cracks
in the wood
What is the part of a file that you put a handle on? - (answers)The Tang
What are the formulas for a rectangle and circle? - (answers)LxW=A 3.14xR2
How many gallons of paint would it take to cover 4 walls? - (answers)Find the square footage of
all walls, and divide by the square footage of paint in the bucket
Does a micrometer wrench;
Light
Click
slip
until it reaches its place on the dial? - (answers)Clicks
What tool is used to measure the pitch on a screw? - (answers)Thread Gauge
What type of metal is used for steam? - (answers)Galvanized Steel
What is the most important thing to have when threading pipe? - (answers)Cutting Fluid/Cutting
Oil
What happens when you reverse two wires in a 3 phase motor? - (answers)The motor reverses
direction
, How would you find the surface area of a clarifier? - (answers)3.14xr2
What does GOW stand for on a valve? - (answers)Gas Oil Water
What is galvanized Steel coated with? - (answers)Zinc
What does a pin in a chain represent? - (answers)To be able to measure the pitch in the chain
What do you do before entering a manhole? - (answers)Check for deadly as before you remove
the manhole cover
What kind of valvle is a 1/4 turn valve? - (answers)Ball Valve
What kind of fire extinguisher is rated for an electrical fire? - (answers)Type "C" extinguisher
What does not affect a pumps lifespan? - (answers)Seepage
What kind of connection requires a gasket? - (answers)Any pressurized connection
What is a carbon scrubber used for? - (answers)To remove odors
What kind of software is used for shop management? - (answers)CMMS
What is the first thing you do when diagnosing an electrical motor? - (answers)Ask the Operator
Maintainer for permission
What are Volts, Amps, and Ohms? - (answers)Volts; Electromotive Force/Pressure E
Amps; Current or Flow I
LATEST UPDATE 2025 | COMPLETE QUESTIONS WITH CORRECT DETAILED
AND VERIFIED ANSWERS-MOSTLY TESTED | RATED 100% CORRECT-
GUARANTEED PASS!! ALREADY GRADED A+
Which welding process is most commonly used for small pipe maintenance welding? -
(answers)Oxyacetylene gas welding
What is the proper definition of an engine? - (answers)It is a machine designed to convert energy
into useful mechanical motion
What is wet stacking and how can it be prevented? - (answers)It is unburned fuel collecting in
the exhaust due to light or no load conditions.
To check flywheel face runout, where should the dial indicator be positioned? - (answers)The
base on the bell housing and pointer on the flywheel face.
If a 38-tooth gear running at 360 rpm is driving another gear at 144 rpm, what is the number of
teeth on the driven gear? - (answers)Solution: driver Gear x Driver RPM=Driven Gear x Driven
RPM
38 x 360 = N x 144
13,680 = 144N
13, = 144N / 144
95 = N
(95 Tooth Gear
Which of the following is required for a sealed ball bearing? - (answers)It does not need to be
lubricated under normal use.
,A DAFT is an acronym meaning: - (answers)Dissolved Air Flotation Thickener.
What is the governing agency that permits odor control systems? - (answers)AQMD: Air Quality
Management District
At what pressure rating would you use a blower instead of a fan? - (answers)7 PSI
Which of the following valves is unsuitable for high-pressure flow? - (answers)A needle valve
A sodium hypochlorite tank's full working capacity is 23,000 gallons. Its current level is at 1,200
gallons. How many gallons does the delivery driver need to add to bring it to 70% capacity? -
(answers)Solution:
23,000 gallons max capacity x 70% desired capacity = 16,100 gallons desired.
16,100 gallons desired - 1,200 gallons current level
14,900 gallons needed to add
What is the result if 6/8 " is converted to decimal form? - (answers) = 0.75 or .75
What is the conversion of 212 degrees Fahrenheit into Celsius?
What is the conversion of 100 degrees Celsius into Fahrenheit? - (answers)C° = (F° - 32)/9 x 5
•Begin by subtracting 32 from the Fahrenheit number.
•Divide the answer by 9.
•Then multiply that answer by 5.
To convert from Celsius to Fahrenheit:
F° = (C° x 9/5) +32•Begin by multiplying the Celsius temperature by 9.
,•Divide the answer by 5.
•Now add 32.
=212 degrees F
Why would you not paint a wooden ladder OSHA yellow? - (answers)The Color can hide cracks
in the wood
What is the part of a file that you put a handle on? - (answers)The Tang
What are the formulas for a rectangle and circle? - (answers)LxW=A 3.14xR2
How many gallons of paint would it take to cover 4 walls? - (answers)Find the square footage of
all walls, and divide by the square footage of paint in the bucket
Does a micrometer wrench;
Light
Click
slip
until it reaches its place on the dial? - (answers)Clicks
What tool is used to measure the pitch on a screw? - (answers)Thread Gauge
What type of metal is used for steam? - (answers)Galvanized Steel
What is the most important thing to have when threading pipe? - (answers)Cutting Fluid/Cutting
Oil
What happens when you reverse two wires in a 3 phase motor? - (answers)The motor reverses
direction
, How would you find the surface area of a clarifier? - (answers)3.14xr2
What does GOW stand for on a valve? - (answers)Gas Oil Water
What is galvanized Steel coated with? - (answers)Zinc
What does a pin in a chain represent? - (answers)To be able to measure the pitch in the chain
What do you do before entering a manhole? - (answers)Check for deadly as before you remove
the manhole cover
What kind of valvle is a 1/4 turn valve? - (answers)Ball Valve
What kind of fire extinguisher is rated for an electrical fire? - (answers)Type "C" extinguisher
What does not affect a pumps lifespan? - (answers)Seepage
What kind of connection requires a gasket? - (answers)Any pressurized connection
What is a carbon scrubber used for? - (answers)To remove odors
What kind of software is used for shop management? - (answers)CMMS
What is the first thing you do when diagnosing an electrical motor? - (answers)Ask the Operator
Maintainer for permission
What are Volts, Amps, and Ohms? - (answers)Volts; Electromotive Force/Pressure E
Amps; Current or Flow I
