4th TSSA Part A - Unit 8 UPDATED
ACTUAL Exam Questions and CORRECT
Answers
(4-078-3.8) Current flow is: - CORRECT ANSWER - Increases as the applied voltage
increases
(4-078-1.8) A material that transfers electric charge is called: - CORRECT ANSWER -A
conductor
(4-079-1.7) If a material has a low reluctance, it has a high - CORRECT ANSWER -
Permeability
(4-080-1.3) A clamp-on ammeter measures current flow by using: - CORRECT
ANSWER - A basic transformer principle
(4-078-1.5) The flow of electrons in a uniform direction is called: - CORRECT
ANSWER - Electric current flow
(4-080-2.1) The black demand pointer of a kilowatt hour meter: - CORRECT ANSWER -
Must be manually reset
(4-078-7.7) The voltage required to be supplied to a 12 kW motor drawing 24 A is: - CORRECT
ANSWER - 500 V
(4-082-4.4) Transformers require: - CORRECT ANSWER - Less maintenance than most
other electric machinery
(4-081-2.13)To transfer the power to or from the rotor of alternators, ____________ are used. -
CORRECT ANSWER - Slip rings
, (4-081-1.14) The load current has no effect on the field excitation of a: - CORRECT
ANSWER - Separately excited generator
(4-081-2.10) Which of the following is a requirement for synchronizing alternators? -
CORRECT ANSWER - Frequencies must be equal
(4-082-3.1) Copper losses in a transformer are reduced by: - CORRECT ANSWER -
Using larger diameter wire
(4-081-1.8) ___________ are used on motors and generators to produce the strong magnetic field
required by these machines. - CORRECT ANSWER - Pole pieces
(4-081-2.12) The voltage produced in each phase of a three phase generator is displaced by
_____ electrical degrees from the other phases: - CORRECT ANSWER - 120
(4-078-3.5) The unit of measure for electrical current flow is: - CORRECT ANSWER -
Ampere
(4-081-2.1) An AC motor which will drop out of synchronism and simply trip when overloaded
is the: - CORRECT ANSWER - Synchronous motor
(4-078-5.1) Three resistors of 20, 60 and 120 ? are connected in parallel with a current flow of 60
A. The applied voltage will be _____ V. - CORRECT ANSWER - 800
(4-081-1.10) The coils or windings on a DC machine armature are placed in _____ the face of
the armature. - CORRECT ANSWER - Slots cut into
(4-081-2.9) Synchronous motors have construction that is identical to: - CORRECT
ANSWER - Alternators
ACTUAL Exam Questions and CORRECT
Answers
(4-078-3.8) Current flow is: - CORRECT ANSWER - Increases as the applied voltage
increases
(4-078-1.8) A material that transfers electric charge is called: - CORRECT ANSWER -A
conductor
(4-079-1.7) If a material has a low reluctance, it has a high - CORRECT ANSWER -
Permeability
(4-080-1.3) A clamp-on ammeter measures current flow by using: - CORRECT
ANSWER - A basic transformer principle
(4-078-1.5) The flow of electrons in a uniform direction is called: - CORRECT
ANSWER - Electric current flow
(4-080-2.1) The black demand pointer of a kilowatt hour meter: - CORRECT ANSWER -
Must be manually reset
(4-078-7.7) The voltage required to be supplied to a 12 kW motor drawing 24 A is: - CORRECT
ANSWER - 500 V
(4-082-4.4) Transformers require: - CORRECT ANSWER - Less maintenance than most
other electric machinery
(4-081-2.13)To transfer the power to or from the rotor of alternators, ____________ are used. -
CORRECT ANSWER - Slip rings
, (4-081-1.14) The load current has no effect on the field excitation of a: - CORRECT
ANSWER - Separately excited generator
(4-081-2.10) Which of the following is a requirement for synchronizing alternators? -
CORRECT ANSWER - Frequencies must be equal
(4-082-3.1) Copper losses in a transformer are reduced by: - CORRECT ANSWER -
Using larger diameter wire
(4-081-1.8) ___________ are used on motors and generators to produce the strong magnetic field
required by these machines. - CORRECT ANSWER - Pole pieces
(4-081-2.12) The voltage produced in each phase of a three phase generator is displaced by
_____ electrical degrees from the other phases: - CORRECT ANSWER - 120
(4-078-3.5) The unit of measure for electrical current flow is: - CORRECT ANSWER -
Ampere
(4-081-2.1) An AC motor which will drop out of synchronism and simply trip when overloaded
is the: - CORRECT ANSWER - Synchronous motor
(4-078-5.1) Three resistors of 20, 60 and 120 ? are connected in parallel with a current flow of 60
A. The applied voltage will be _____ V. - CORRECT ANSWER - 800
(4-081-1.10) The coils or windings on a DC machine armature are placed in _____ the face of
the armature. - CORRECT ANSWER - Slots cut into
(4-081-2.9) Synchronous motors have construction that is identical to: - CORRECT
ANSWER - Alternators
