When should a V-belt pulley be changed?
A. when the sides are shiny
B. when the sides become dished out
C. every three months
D. once a year
Answer: B
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A geothermal heat exchange bed is 40 ft. 7 in. long. What is its length in m??
Fill in the blank(s) with the appropriate word(s).
Grounding straps are required on resilient mounted motors to ____.
A. prevent rotation of the motor in the mount B. help reduce motor vibration transfer to the object on which the motor is mounted C. ground the motor in case of winding failure D. act as the position for locating the motor leads
A voltage regulator with excellent line and load regulation characteristics is a
A) Darlington pass-transistor regulator B) zener regulator C) pass-transistor regulator D) series feedback regulator
The first step to balancing an air distribution system is making certain that __________ is being provided by the blower.
What will be an ideal response?