Answer the following statement(s) true (T) or false (F)
1. A shunt motor is typically used for railway installations, cranes, and other applications requiring high torque at low speed.
2. The series motor maintains a constant speed as mechanical load is added.
3. A series motor produces a greater torque than a shunt motor for the same increase in current.
4. The speed regulation of a line-connected series motor is inherently better than that of a shunt motor.
5. When a mechanical load is added to the series motor, the motor slows with a new, higher torque requirement.
1. FALSE
2. FALSE
3. TRUE
4. FALSE
5. TRUE
You might also like to view...
When the government of Lord North persuaded Parliament to repeal the Townshend revenue duties in 1770
A. the American colonists rejoiced that Parliament had seemingly accepted the American definition of representation. B. the American colonists remained unassuaged because Parliament retained the three-pence tax on tea, upholding Parliament's asserted right to tax the colonists. C. the American colonists shortly thereafter called the First Continental Congress into session in January 1771. D. the American colonists avoided the tax on tea by buying their tea directly from the British East India Company. E. None of these are correct.
A linear elastic spring with a spring constant of 1.25 kN/m is initially at a length of 0.25 m. The spring expands, doing 40 J of work in the process. What is the final length of the spring?
Given: k = 1,250 N/m; x1 = 0.25m ; Wspring = 40 J What will be an ideal response?
The area in dispute between the United States and Great Britain in 1845 lay between the
A. 42nd parallel and the Columbia River. B. Cascade Mountains, the Columbia River, and Puget Sound. C. 36°30' line and the Columbia River. D. 49th parallel and the 54°40' line. E. Columbia River, the 49th parallel, and the Pacific Ocean.
Teddy Roosevelt helped to end the 1902 strike in the anthracite coal mines by
A. using the military to force the miners back to work. B. passing legislation making the miners' union illegal. C. helping the mine owners to import strike-breakers. D. serving as a labor mediator to have the miners' union and mine owners come to a negotiated settlement guaranteeing the right of the miners to unionize. E. threatening to seize the mines and to operate them with federal troops.