Control circuits, relay or PLC, should have ____ to identify logic and actuator status.
a. visual indicators
b. analog meters
c. ohmmeters
d. user manuals
a. visual indicators
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The length, L, of the point on any standard 118 degree included-angle drill can be calculated using the formula 0.3 x D, where D represents the diameter of the drill. Determine the length of the drill point if the diameter is 1/6 inch.
What will be an ideal response?
Because interior light levels are usually low, interior plants do not develop ____ quickly; therefore
they are not developing roots to support the plant’s needs for water and nutrients
a. top-heavy growth patterns c. soluble salt toxicity b. infections d. new leaves
If an insulating material, known as a dielectric, is placed between two plates of a conducting material, the resulting assembly is a(n) ____________________.
What will be an ideal response?
Electronic temperature sensors can be:
A) Generally less accurate than bimetal thermometers. B) Thermocouple, thermistor, or wire-wound. C) Thermistor, bimetal, or charged bulb. D) Bimetal, mercury bulb, or piezoelectric.