Under what conditions is the thermal resistance of the tube in a heat exchanger negligible?
What will be an ideal response?
When the wall thickness of the tube is small and the thermal conductivity of the tube material is high, which is usually the case, the thermal resistance of the tube is negligible.
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Manual luffing jib offsets can be set using what method or hardware?
a. Varying the number of metal links between hinged parts b. Changing the position of a hydraulic actuator c. Adjusting cables during the lift d. Positioning jib masts during the lift
Assess America's policy of neutrality at the outset of World War I. Consider both Wilson's policies in regard to Britain and Germany and the sentiments of the American public. Were we "neutral in thought as well as deed"? Explain.
What will be an ideal response?
The American Social Security System, established by the New Deal, differed from most European social welfare systems primarily because it
A. was opposed by large sectors of the public. B. did not permit the Social Security number to be used for identification and security purposes. C. did not address the issue of single mothers in the home with dependent children. D. linked unemployment and disability insurance to old age pensions. E. did not initially cover all categories of workers.
PDCA refers to a process to convert DC electrical output to AC output.
Answer the following statement true (T) or false (F)