Limit switches are usually normally open switches.
Answer the following statement true (T) or false (F)
False
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The terminals of a motor can be identified using a battery and a(n) _____.
a. voltmeter b. ohmmeter c. ammeter d. continuity tester
In promising to grant the Philippines independence, the United States was
A. motivated by treaty obligations. B. providing the Philippines with long-term economic terms and assistance necessary to assure a smooth transition to political independence. C. acknowledging the view of the U.S. Navy that the islands were militarily indefensible. D. providing tacit encouragement to Japanese militarists who eyed the Philippines as a target for their imperialist ambitions in Asia and the Pacific. E. acknowledging an official U.S. government apology for America's imperialist takeover of the islands in 1898.
What is a common method of producing hydrogen?
A. evaporation B. sublimation C. freezing D. steam reforming
Assume that the coupling between the motor and the inertial load of Problem 19.25 is flexible (e.g., a long shaft). This can be modeled by adding a torsional spring between the motor inertia and the load inertia. Now we can no longer lump together the two inertias and damping coefficients as if they were one; we need to write separate equations for the two inertias. In total, there will be three equations in this system: the motor electrical equation, the motor mechanical equation (Jm and Bm), and the load mechanical equation (J and B)
a. Sketch a diagram of the system. b. Use free-body diagrams to write each of the two mechanical equations. Set up the equations in matrix form. c. Compute the transfer function from input voltage to load speed, using the method of determinants.