Refrigeration and Air Conditioning Technology (MindTap Course List)
8th Edition
ISBN: 9781305578296
Author: John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher: Cengage Learning
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Chapter 18, Problem 4RQ
To determine
The suitable term for filling the blank space in the given sentence.
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Describe the operating principle of the electric motor.
AHO LUI
3. True or false? A magnetic field opposing the
stator's magnetic field is produced in a
motor's rotor by a process called induced
magnetism.
2/. The _____________ between the windings of a transformer is the same.
current
induced emf
voltage
frequency
Chapter 18 Solutions
Refrigeration and Air Conditioning Technology (MindTap Course List)
Ch. 18 - Prob. 1RQCh. 18 - Power supply data should include the...Ch. 18 - Prob. 3RQCh. 18 - Prob. 4RQCh. 18 - Prob. 5RQCh. 18 - In the United States, the frequency in cycles per...Ch. 18 - Prob. 7RQCh. 18 - Prob. 8RQCh. 18 - An open single-phase motor with a centrifugal...Ch. 18 - Prob. 10RQ
Ch. 18 - Prob. 11RQCh. 18 - Prob. 12RQCh. 18 - Prob. 13RQCh. 18 - Prob. 14RQCh. 18 - Prob. 15RQCh. 18 - What is a matched set of belts?Ch. 18 - Name the different types of belts.Ch. 18 - Prob. 18RQCh. 18 - An instrument often used to check the alignment of...Ch. 18 - Why must resilient-mount motors have a ground...Ch. 18 - A belt-driven blower assembly is equipped with a...Ch. 18 - Prob. 22RQCh. 18 - Prob. 23RQCh. 18 - Prob. 24RQ
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- State the physical differences between a run and a start capacitor.arrow_forwardWhat is the difference between voltage and current?arrow_forwardThe torque of a motor is the __________________. a. product of rotor’s tangential force and its radius b. power given to load driven by the motor c. electrical power d. force in N acting on the rotorarrow_forward
- What is the frequency (in Hz) of a motor spinning at 1740 rpm?arrow_forwardVoltage can be described as ____________ .arrow_forwardThe speed of a moving coil motor (MCM) is varied by O changing the DC voltage applied to the armature O changing the width of DC pulses applied to the armaturearrow_forward
- Q A motor of 15 horsepower, has a code letter L, and is operated on a 400-volt line. Find the locked rotor currentarrow_forwardwhy does a hydraulic motor deliver less torque than it should theoreticallyarrow_forwardA rotating magnetic field inside a set of conductingwires is a simple description of a __ .a. DC generatorb. AC generatorc. voltage regulatord. none of the abovearrow_forward
- For a hydrulic motor , define volumetric, mechanical, and overall effiency.arrow_forwardA motor is operating a load that requires a torque of 750 pounds per inch and is turning at a speed of 1575 RPM. How much horsepower is the motor producing?arrow_forwardWhat does the term bifilar mean?arrow_forward
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