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25
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What type of misalignment is shown in the diagram
Shaft balancing
Offset misalignment
Angular misalignment
Radial misalignment
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25
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Which of the following can endanger equipment and personnel when vibration problems occur?
Improved shaft alignment
Increased lubrication
Extra cooling systems
Broken parts, belts, and gears
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25
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When does the alarm system activate
When the shaft speed increases
When the power supply is turned off
When the machine is not running properly
When the machine is perfectly balanced
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25
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What does the change in current flowing through the probe coil indicate
speed of shaft rotation
gap between the probe tip and the conducting material
The vibration frequency
load on the bearings
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25
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What does Peak-to-Peak (Pk-Pk) measure in vibration
The distance from a negative peak to a positive peak
The average squared value of the waveform
The maximum movement of the wave from zero
The number of cycles per second
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25
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What does the phase angle of vibration describe
The magnitude of the vibration
The location of the rotor at a particular instant
The distance from peak to peak
The speed of the vibration
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25
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What does the emergency shutdown system do
Starts data acquisition
Reduces noise levels
Performs an emergency shutdown in dangerous situations
Adjusts the vibration amplitude
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25
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What does relative vibration describe
The movement of a shaft inside the bearing
The movement of the shaft toward a fixed reference point
The twisting of the shaft around its axis
The vibration of the shaft and the machine relative to free
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banana
Go to last place!
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gold
Win 50 points!
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rocket
Go to first place!
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lifesaver
Give 10 points!
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25
×
What is another name for proximity probes
RMS detectors
Seismic velocity probes
Eddy current probes
Piezoelectric probes
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monster
Reset all scores!
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shark
Other team loses 10 points!
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fairy
Take points!
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20
25
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baam
Lose 20 points!
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25
×
Which vibration characteristic indicates the rotorâs position at a specific moment
Root Mean Square (RMS)
Phase Angle
Frequency
Amplitude
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25
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In what unit is vibration frequency commonly measured
Volts (V)
Newtons (N)
Cycles per second (cps)
Degrees (°)
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25
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What does radial vibration describe?
small movement of a shaft toward and away from its bearings
The movement of a shaft along its axis
The vibration of the machine relative to free space
The twisting motion of a rotating shaft
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25
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What does a proximity probe consist of
A magnet attached to a rotating shaft
coil of wire wound around metal rod connected to preamplifie
A tension meter attached to a belt
A sleeve bearing filled with oil
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baam
Lose 5 points!
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fairy
Take points!
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25
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rocket
Go to first place!
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baam
Lose 20 points!
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