• Home
  • Download PDF
  • Order CD-ROM
  • Order in Print
Assignment Questions - 14177_116
Assignment Questions - 14177_118

Neets Module 05-Introduction to Generators and Motors
Page Navigation
  98    99    100    101    102  103  104    105    106  
5 1-37.   The current in the interpoles of a dc motor is the same as the 1.     armature current 2.     field current 3.     total load current 4.     eddy current 1-38.   In a dc motor, what is the purpose of the resistor placed in series with the armature? 1.  To counteract armature reaction 2.  To limit armature current 3.  To increase field strength 4.  To prevent overspeeding 1-39.   Magnetic induction in an alternator is a result of relative motion between what two elements? 1.    The rotor and the armature 2.    The armature and the field 3.    The field and the stator 4.    The rotor and the field 1-40.   Voltage is induced in what part of an alternator? 1.     The commutator 2.     The brushes 3.     The armature 4.     The field 1-41.   What are the two basic types of alternators? 1.     Multiphase and polyphase 2.     Alternating current and direct current 3.     Rotating field and rotating armature 4.     Series-wound and shunt-wound 1-42.   Which of the following alternator types is most widely used? 1.  Shunt-wound 2.  Rotating-armature 3.  Series-wound 4.  Rotating-field 1-43.   The purpose of the exciter in an alternator is to 1.    provide dc field excitation 2.    compensate for armature losses 3.    compensate for counter emf 4.    counteract armature reaction 1-44.   An alternator using a gas turbine as a prime mover should have what type of rotor? 1.     Turbine-driven 2.     Salient-pole 3.     Armature 4.     Geared 1-45.   In alternators with low-speed prime movers, only what type of rotor may be used? 1.     Geared 2.     Armature 3.     Salient-pole 4.     Turbine-driven 1-46.   Alternators are rated using which of the following terms? 1.     Volts 2.     Watts 3.     Amperes 4.     Volt-amperes 1-47.   What does the term single-phase mean relative to single-phase alternators? 1.   All output voltages are in phase with each other 2.   The voltage and current are in phase 3.   The phase angle is constant 4.   Only one voltage is produced 1-48.   In a single-phase alternator with multiple armature windings, how must the windings be connected? 1.     Series 2.     Parallel 3.     Wye 4.     Delta






Western Governors University

Privacy Statement
Press Release
Contact

© Copyright Integrated Publishing, Inc.. All Rights Reserved. Design by Strategico.