Which of the following statements is true for a wye-connected three-phase system?
A. Line current is higher than phase current by a factor of 1.732.
B. Phase current is higher than line current by a factor of 1.732.
C. Line current is less than phase current by a factor of 1.732.
D. Line current and phase current are equal.
Answer: D
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For nineteenth-century middle-class families, which room in the house became the center of parties and entertainment?
a. drawing room b. dining room c. parlor d. kitchen
Which of the following problems could occur if a humidifier is not regularly cleaned and checked for operation?
A) Excessive dryness B) Nickel in the water supply C) CO poisoning D) Mold growth
The stretching of the atoms of the dielectric is called dielectric ____.
a. charging b. plating c. elasticity. d. stress
The Otto cycle efficiency is nearest:
The pressure and temperature at the inlet to the ideal Otto cycle, with T-s diagram shown, are 100 kPa and 10ºC. The maximum temperature in the cycle is 1200ºC. Assume constant specific heats from Table below for all calculations.
A) 49%
B) 54%
C) 58%
D) 63%