To enhance your engineering sketching ability, consider the paper stapler. Disassemble the stapler to its basic components. Sketch these components, and then sketch an assembled stapler.
What will be an ideal response?
Parts could include the following: rubber base, metal base, crimp area and attachment fastener, handle, hammer, springs, rivets or pins, staples.
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Which of the following statements about metal raceways and enclosures for service conductors is true?
A. To be considered grounded, the metal raceway must be connected directly to a grounding electrode. B. Metal raceways for service conductors are considered grounded if they are connected to a service enclosure that is grounded. C. The metal pulling elbows in a run of underground nonmetallic conduit are required to be grounded irrespective of burial depth. D. The metal pulling elbows in a run of underground nonmetallic conduit are required to be grounded only if they are within 12 in. (304 mm) of the surface.
What is the main determining factor in turbocharger RPM?
A. Exhaust gas temperature. B. Turbocharger geometry. C. Compressor wheel design. D. Exhaust gas pressure.
In a car, the indicated horsepower developed by gasoline is 100. Only 88 horsepower is available for actual work. What is the mechanical efficiency?
A. 44% B. 66% C. 88% D. 99%
The four dry cells are connected in series as shown. Find the voltage. Carry the answer to three decimal places. Hint: You may need to find total resistance first.
Fill in the blank(s) with the appropriate word(s).