Engineering Exams quiz
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Sample questions
- An eight-pole generator has a lap winding of 576 active conductors and carries a current of 100 amp. When it is necessary to advance the brushes 15 electrical space degrees, how many demagnetizing and how many cross-magnetizing ampere-turns are present?
- Oxygen initially at 13.8MPa, 15.5°C is throttled in a steady- flow process to a final pressure of 1.38MPa. Assuming the process to be adiabatic, determine the final temperature of oxygen.
- The statistical data for a certain community indicate that 25% of all girls are blondes, 50% of all girls and 75% of all blondes have blue eyes. If it is known that a girl has blue eyes, how much additional information is available if one is told that she is also a blonde?
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