These are a helix or conical spiral form on the external surface of a shaft or internal surface of a cylindrical hole.
a. screw thread
b. tap
c. die
d. bolt and nut
a. screw thread
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Technician A says that you should begin HVAC problem diagnosis with a thorough inspection. Technician B says that you can determine from the inspection what type of system you are dealing with. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
This is a conical-shaped tool used to cut the recess for the conically shaped head of a fastener.
a. counterdrill b. countersink c. spotface d. counterbore
Fill in the blank(s) with the appropriate word(s).
What is the RD pin on an ADC?
A) It is an active-HIGH output ENABLE. B) It is an active-LOW output ENABLE. C) It is an active-HIGH output DISABLE. D) It is an active-LOW output DISABLE.