PTAC Equipment Class Recording Questions With Complete Solutions

PTAC Equipment Class Recording Questions With
Complete Solutions


What is designed to determine speed of the turbine ?
governor
What can minimize the vibration caused by thrust ?
A. Lubrication
B. Thrust bearings
B
What occurs as a result of damage that takes place when the
turbine is not running?
A. Pitting
B. Folding
C. Erosion
C
Which of the following is an improper operation that does
not pose a hazard of turbine shutdown?
A Steam Leaks
B Discharge steam pressure
C Failure to maintain sufficient inlet steam pressure
A
Which of the following should a process technician monitor?
A. Levels
B. Speed governor lubrication

, C. Inlet and outlet pressure
D. All of the above
D
What is the basic principle of turbines ?
A. They utilize force to turn a rotor
B. Convert mechanical energy into kentic energy
A
What occurs when a turbine has shut down due to abnormal
conditions?
A. Corrosion
B. Bearing damage
C. Turbine trip
C
What type of motor is the most common type of motor used in
the process industry?
A. AC
B. DC
A
Why are electric motors often preferred?
A. Reliability
B. Low maintenance cost
C. All of the above
C
What is a metal rotating component that holds a rotor that all
rotating equipment in place?