On the basis of the equations of the Focus on Measurements box “Linear Variable Differential Transformer,” and of the results of Problem 18.3, derive the frequency response of the LVDT, and determine the range of frequencies for which the device will have maximum sensitivity for a given excitation. (Hint: Compute dvout/dvex, and set the derivative equal to zero to determine the maximum sensitivity.)
What will be an ideal response?
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Answer the following statements true (T) or false (F)
1) A company's emergency response plan should be a collection of small plans for all the different types of emergencies that might occur. 2) OSHA has no standard related to emergency evacuation but, instead, specifies the use of the guidelines of the International Red Cross. 3) Companies are exempt according to the Americans-With-Disabilities Act from having to plan for disabled employees during emergencies. 4) An emergency response network is a network of emergency response teams covering a specified geographical area. 5) Trauma is physiological stress.
If fluxes become overheated or burned, they will stop working as fluxes, and become a contamination in the joint.
Answer the following statement true (T) or false (F)
Balancing valves are required
A) to create negative pressure. B) to allow adjustable flow. C) on single circuit loops. D) on venturi pipe systems.
Refrigerant piping must be able to adequately carry both refrigerant and:
A) Air. B) Electricity. C) Oil. D) Nitrogen.