Engineering drawings are typically set up in the familiar ____ that shows the top, front, and right side views.
A. opened glass box
B. curved
C. L-shaped pattern
D. oblique configuration
Answer: C
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The primary purpose of a batten system in a clay (or concrete) tile roof is to __________.
A) provide a drainage layer under the tiles. B) provide a cushion to the tiles. C) provide a nail base for tiles. D) none of the above.
A(n) ____________________ connection is used when three single-phase transformers are used to step down as three-phase voltage of 2400 V to 240 V, three phase.
Fill in the blank(s) with the appropriate word(s).
Nothing is seen in the sight glass (R-12 system). Technician A says that the system may be completely empty of refrigerant. Technician B says that the system may be completely charged. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B
Technician A says that the maximum permissible operating angles of U-joints decrease as driveshaft rpm increases. Technician B says that a driveshaft that turns at a maximum of 3500 rpm should have U-joint working angles of 3 degrees or less. Who is correct?
A. Technician A only B. Technician B only C. Both A and B D. Neither A nor B