GRADE 1 MECHANICAL TECHNOLOGIST STUDY GUIDE
QUESTIONS AND CORRECT ANSWERS 2023
Which welding process is most commonly used for small pipe maintenance
welding? - ANSWER-Oxyacetylene gas welding
What is the proper definition of an engine? - ANSWER-It is a machine
designed to convert energy into useful mechanical motion
What is wet stacking and how can it be prevented? - ANSWER-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? - ANSWER-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? - ANSWER-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? - ANSWER-It
does not need to be lubricated under normal use.
A DAFT is an acronym meaning: - ANSWER-Dissolved Air Flotation
Thickener.
What is the governing agency that permits odor control systems? -
ANSWER-AQMD: Air Quality Management District
At what pressure rating would you use a blower instead of a fan? -
ANSWER-7 PSI
Which of the following valves is unsuitable for high-pressure flow? -
ANSWER-A needle valve
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