?This Hyatt billiard ball was an early ____ product.
A. ?gutta percha
B. ?celluloid
C. ?shellac
D. ?Bakelite
Answer: B
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Cost per mmBtu of steam from a district heating plant is characterized by which of the following?
A) More than the cost of steam produced on site due to capital investment for the plant. B) Less than the cost of steam produced on site due to higher efficiency. C) Approximately equal to the cost of stream produced on site since fuel costs are equal.
Technician A says that for maximum speed reduction of a simple planetary gear set, the sun gear must be the input member and the ring gear must be the stationary or held member. Technician B says that to achieve a maximum speed increase, the gear with the highest number of teeth must be the input. Who is correct?
A. Technician A B. Technician B C. Both D. Neither
A heat recovery ventilator is more energy efficient than a balanced ventilation system consisting of an exhaust blower and a supply air blower because:
A) It recovers energy from the compressor. B) It recovers energy from the attic. C) It recovers energy from the exhaust air. D) It recovers energy from the system blower.
When the oblique drawing is completed, the object will have a
A. 2-dimensional appearance B. 3-dimensional appearance C. projection appearance