What should be done first to the system when a 0.9 volt drop is observed between the battery positive terminal and the starter solenoid with the engine cranking?
A. Install a larger battery
B. Nothing, it is acceptable
C. Replace the cable or component between the voltmeter leads
D. Clean the battery cable connections and retest
Answer: D
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If the Earth were completely covered with water, so that the planet’s albedo was 20%, what would be the Earth’s blackbody radiation temperature?
What will be an ideal response?
The discharge valve on a balanced pressure thermostatic trap is controlled by a liquid-filled _____.
a. diaphragm b. bimetallic strip c. bellows d. cylinder
Stefanie is a design engineer with an international railroad locomotive manufacturing company in the state of Illinois. Management wants to return some of the engineering design work to the United States rather than export all of it to India, where their primary design work have been accomplished for the last decade. This transfer will employ more people locally and could improve the economic conditions for families in and around Illinois. Stefanie and her design team were selected as a test case to determine the quality and speed of the design work they could demonstrate on a more fuel-efficient diesel locomotive. None of her team members or she has done such a significant design job themselves, because their jobs had previously entailed only the interface with the subcontracted
engineers in India. One of her team members had a great design idea on a key element that will improve fuel efficiency by approximately 15%. She told Stefanie it came from one of the Indian-generated documents, but that it would probably be okay for the team to use it and remain silent as to its origin, since it was quite clear the U.S. management was about to cancel the foreign contract. Though reluctant at first, Stefanie did go forward with a design that included the efficiency improvement, and no mention of the origin of the idea was made at the time of the oral presentation or documentation delivery. As a result, the Indian contract was cancelled and full design responsibility was transferred to Stefanie’s group. Consult the NSPE Code of Ethics for Engineers (Appendix C) and identify sections that are points of concern about Stefanie’s decisions and actions.
The device shown as b in the figure above is a _____
A) thermostatic switch
B) low-pressure switch
C) high-pressure switch
D) relay