Organic materials are composed of substances that _____
A) are manufactured
B) occur only in nature
C) are processed
D) are not cooked
B
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Turbo damage by a foreign object is being discussed. Technician A says to look at the valves to determine from which direction the damage came. Technician B says compressor wheel damage results from objects entering the intake stream. Who is correct?
A. Technician A B. Technician B C. Both technicians D. Neither technician
In order to prevent water contamination, wells used for geothermal heat pump systems are grouted.
Answer the following statement true (T) or false (F)
Which of the following is a function of the core wire?
A. To provide some of the alloying elements. B. To provide an arc stabilizer. C. To serve as an insulator. D. To carry the welding current.
To measure horizontal angles, the builder's-level telescope can be rotated _____
a. 90 degrees b. 180 degrees c. 270 degrees d. 360 degrees