EEITG31D Oral Quiz 4

In a 8-pole alternator, how many mechanical degrees is the equivalent of 180 electrical degrees?

• 30

• 45

• 60

• 75

Which of the following statements is false?

• The diagonals of a rhombus are perpendicular to each other.

• The diagonals of a rhombus are equal

• The diagonals of a rectangle are equal.

• The diagonals of a parallelogram bisect each other.

What is the speed of a 100 kW, 230-volt, four pole, 60 Hz alternator?

The term "thermodynamics" comes from the Greek words "therme" and "dynamis", which means _____.

Which of the following is not a type of triangle?

• Equilateral

• Isosceles

• Right

• Parallel

A 30 MVA, 15 kV three phase alternator will have a per phase impedance of _____ ohms.

• 7.5

• 9

• 15

• 18

Which of the following is not a type of polygon?

• Triangle

• Quadrilateral

• Circle

• Pentagon

If the slopes of two lines are equal and their y-intercepts are different, then the lines are ______.

A 4 pole, 60 Hz, three phase, wye-connected generator has 144 armature conductors per phase and winding factor of 0.945. The flux per pole is 76.44 mWb. Find the generated line voltage in the armature in volts.

• 2400

• 2600

• 2700

• 2300

What law asserts that energy is a thermodynamic property?

• First law of thermodynamics

• Second law of thermodynamics

• Third law of thermodynamics

• Zeroth law of thermodynamics