When subtracting decimal fractions, greater accuracy is achieved if the numbers being subtracted are rounded off before subtracting.
Answer the following statement true (T) or false (F)
False
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Answer the following statement(s) true (T) or false (F)
1. The magnetic polarity of the field system is arranged so that the polarity of any particular field pole is opposite to that of the poles adjacent to it. 2. To reverse the direction of the armature rotation of a DC motor, the current direction in both the field and the armature must be reversed. 3. As a DC motor armature starts to rotate, the CEMF increases and the line current decreases. 4. Because torque depends on the strength of the magnetic field of the armature, which, in turn, depends on the armature current, any increase in mechanical load requires an increase in the armature current, more load, slower speed, higher differential, and more current. 5. The terms speed control and speed regulation can be used interchangeably
Which of the following describes circumference?
a. The area of one of four quadrants of a circle b. The distance around a circle c. The distance from the center point of a circle to the edge d. The distance from one edge of a circle to the other
The three parts of a screwdriver include the handle, the tip, and the ____________________.
Fill in the blank(s) with the appropriate word(s).
Which type of grease is used to lubricate cables, door hinges, and various types of linkages?
A. Stick lubricants B. Wheel bearing grease C. White lithium grease D. None of the answers are correct