Every year, animals produce more offspring than is necessary to continue the species, this is called the _____

a. hunting limit
b. biological surplus
c. overpopulation
d. disease barrier


d

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While performing steel-erection work, it is best to wear _____.

a. shirts with open pockets for easy access b. short-sleeve shirts to keep your arms free c. long-sleeved shirts d. an unbuttoned shirt over a t-shirt

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A 280 in^3 engine has 85% volumetric efficiency at its redline speed of 6500 RPM. What is the maximum airflow to the engine? Round to the nearest whole number

What will be an ideal response?

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The most common type of single phase motor used in HVACR equipment is:

A) Repulsion start Induction run (RSIR). B) Series wound Universal DC motors. C) Permanent split capacitor (PSC). D) Capacitor start induction run.

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Which statements are true about sinusoidal waveforms?

A) A sinusoidal waveform has no fundamental frequency B) Sinusoidal waveforms do not repeat C) A sinusoidal waveform does not contain harmonics D) They are a composite of fundamental and harmonic frequencies

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