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60. Generators rated for Standby usage are designed to operate under which of the following conditions?

a. Only when needed, not at full load capacity for more than a few seconds (e.g.: to start a motor
b. At or below 90% of the generators full load rating
c. Only when needed, limited hours at full load rating
d. Unlimited hours at generator’s full load setting

61. Continuous rated generators would be found in which of the following applications?

a. A hospital’s backup system
b. A remote science station’s primary power
c. Urban home use
d. Only where there were never great deviations in load

62. What is the difference in inductive type generators and synchronous type generators?

a. Inductive has the ability to compensate for power factor
b. Synchronous has the ability to produce a controlled voltage
c. Inductive requires a slow prime mover such as hydro turbines and
synchronous requires high speed steam turbines
d. There is no real difference

63. When rating a three phase generator, the manufacturer includes the following information: KW,
amps, volts, PF, and ________. What is missing?

a. KVAR
b. KVA
c. HP
d. Frequency

64. Change in flux over change in time or number of flux lines cut per unit time is what law?

a. Ohm’s law
b. Faraday’s law
c. Kirchoff’s law
d. Murphy’s law

65. Brush type generators do NOT require which of the following components?

a. Exciter field
b. 2-Slip rings
c. Main rotor
d. Brushes

66. Generators running without excitation will often experience residual voltage. This phenomenon is
due to?

a. Magnetism left over in the iron of the field
b. Static electricity in the air
c. Failure to properly short-out the field
d. Corona effect

EGSA Apprentice Certification Program Study Guide - Page 24