Describe the ASME origin symbol.
What will be an ideal response?
The ASME origin symbol consists of a circle around the extension line for a dimension at the reference (origin) point.
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Which of the following properly defines viscosity?
A. resistance to sheer B. resistance to flow C. resistance to heat D. resistance to solidification
Answer the following statement(s) true (T) or false (F)
1. Most single-phase motors have fractional horsepower ratings. 2. The rotor of the resistance-start, induction-run motor is the same as that of a three-phase, squirrel-cage induction motor. 3. Universal motors operate at different speeds on dc and single-phase ac. 4. Stepping motors are devices that convert mechanical movement into electrical impulses. 5. When stepping motors are used as two-phase synchronous motors, they have the ability to virtually start, stop, or reverse direction of rotation instantly.
After determining that a high pressure switch is open, the next step is to:
A) Check the system high side pressure. B) Determine why there is a high pressure condition. C) Determine whether or not the pressure switch should be open. D) All of the above.
In thermocouple circuits, cold junction compensation is used to eliminate error due to the effects of __________.
A. hysteresis B. dead band C. ambient temperature D. open circuits