Describe power measurement in three-phase systems.
What will be an ideal response?
The power, in watts, taken by a three-phase, three-wire system can be measured with two wattmeters. This method can be used to measure the power in a three-wire wye system or in a three-wire delta system.
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Use the accompanying figure. If H = 5.100 in, L = 5.130 in, and W = 5.000 in, what is the length of AB? Give your answer to the nearest thousandth of an inch.
A. 8.877 in B. 6.902 in C. 8.794 in D. 7.114 in
Food can be kept fresher for a longer period of time since the invention of _____
A) the refrigerator B) the microwave C) the pressure cooker D) pesticides
Which of the following are least capable of utilizing forages?
A. Cattle B. Sheep C. Horses D. Goats E. Swine
HC and CO are high and CO2 and O2 are low. This could be caused by a ________
A) Defective ignition component B) Clogged EGR passage C) Lean mixture D) Rich mixture