On lathes where speed changes are made by shifting belts on step pulleys, the shift to low speed range is made by:
A) Moving the back gear lever forward with the spindle running
B) Shifting the belt tension lever and engaging the back gear
C) Disengaging the bull gear lock pin and moving the back gear lever with the spindle running
D) Engaging both the bull gear lock pin and the back gear
B
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Express 763 as a 5211 code number.
A. 111 0001 0001 B. 111 0001 0111 C. 111 0011 0110 D. 1100 1010 0101
Answer the following statement(s) true (T) or false (F)
1. In part winding starting, neither of the two windings is individually capable of withstanding the starting current for more than a few seconds. 2. Part winding starters provide closed transition starting. 3. Delta connected dual voltage motors are acceptable for part winding starting. 4. When dual voltage motors are used, the motor must be operated on the high voltage setting of the motor. 5. Part winding starting is typically used for motors that supply the moving force for centrifugal pumps, fans, and blowers.
What are the three reasons for elemental fairness?
What will be an ideal response?
The high-strength steel cables used in posttensioned concrete construction are called _____
a. stringers b. bands c. tendons d. stays