730 collective systems (refer to the
collective print for circuit operation
questions) with correct answers
[1 E1] - CORRECT ANSWERS-Refer to SAPB print: What is the location of the UDT 2/3
contact?
[1 F2] - CORRECT ANSWERS-Refer to CPPB print: What is the location of the door
contacts?
1F 1-3 - CORRECT ANSWERS-Refer to SAPB print: Which relays indicate that the car
is at or near the bottom landing?
EH3 9/7 - CORRECT ANSWERS-Refer to CPPB print: On Phase 1 of firefighter's
service, which contact disables the car calls lights?
Fuse 1 will open - CORRECT ANSWERS-Refer to CPPB print: What will happen if
Terminal 19 is shorted to ground?
Main - CORRECT ANSWERS-If the top floor smoke sensor were activated by smoke,
which floor would the car be recalled to?
Mechanical Switches - CORRECT ANSWERS-Cams mounted in the hoistway or on the
car are used to operate what type of switches?
Protect the motor windings from overcurrent - CORRECT ANSWERS-Refer to SAPB
print: What is the purpose of MOL1, MOL2, and MOL3?
R2 - CORRECT ANSWERS-Refer to SAPB print: Which resistor is tapped to change
speed between open and close speed?
Rectifier RF - CORRECT ANSWERS-Refer to CPPB print: What changes the incoming
AC power into the DC power that operates the door motor circuit?
, Self-holding - CORRECT ANSWERS-Refer to SAPB print: When the car is traveling up
between the third and fourth floors, what is the condition of relays 3F 1-3?
Stores all car and hall calls - CORRECT ANSWERS-Which statement applies to the
collective control system?
TDCP - CORRECT ANSWERS-Refer to SAPB print: Which on-delay timer is used for
door close stall protection?
The car will run down in slow speed - CORRECT ANSWERS-Refer to SAPB print: If
contact D2 2-3 fails to close when the car runs down, what will happen [1 F2]?
The Wye-Delta motor starter could not energize - CORRECT ANSWERS-Refer to
CPPB print: What effect would the failure of contact US 5-6 to close have on the system
[1 B2]?
Three-phase, Full-wave - CORRECT ANSWERS-Refer to SAPB print: What type of
rectifier feeds the door operator?
When the car is leveling into the third landing - CORRECT ANSWERS-Refer to SAPB
print: If the car were running in response to a third floor call, when will 3C relay de-
energize?
If contact U2 2-3 (1 F2) fails to close when the car runs up what will happen? -
CORRECT ANSWERS-The car will run up in slow speed
If the main floor smoke sensor were activated by smoke, to which floor would the car be
recalled to? - CORRECT ANSWERS-Second
On phase 1 of firefighters service which contact disables the car call? - CORRECT
ANSWERS-EH3 9/7
Refer to sheet [1 F2]. What will happen if we ground terminal 18? - CORRECT
ANSWERS-Fuse 1 will open
Refer to sheet 2 area C4 of the wiring diagrams. If the car were running in response to a
second floor call, when will 2C relay de-energize? - CORRECT ANSWERS-When the
2F relays energize
Vanes or fins mounted in the hoistway or on the car, are used to operate what type of
switches? - CORRECT ANSWERS-Magnetic switches
What area is the door close push button located? - CORRECT ANSWERS-(2 C4)
What changes the incoming AC power into the DC power that operates the door motor
circuit? - CORRECT ANSWERS-Rectifier RF
collective print for circuit operation
questions) with correct answers
[1 E1] - CORRECT ANSWERS-Refer to SAPB print: What is the location of the UDT 2/3
contact?
[1 F2] - CORRECT ANSWERS-Refer to CPPB print: What is the location of the door
contacts?
1F 1-3 - CORRECT ANSWERS-Refer to SAPB print: Which relays indicate that the car
is at or near the bottom landing?
EH3 9/7 - CORRECT ANSWERS-Refer to CPPB print: On Phase 1 of firefighter's
service, which contact disables the car calls lights?
Fuse 1 will open - CORRECT ANSWERS-Refer to CPPB print: What will happen if
Terminal 19 is shorted to ground?
Main - CORRECT ANSWERS-If the top floor smoke sensor were activated by smoke,
which floor would the car be recalled to?
Mechanical Switches - CORRECT ANSWERS-Cams mounted in the hoistway or on the
car are used to operate what type of switches?
Protect the motor windings from overcurrent - CORRECT ANSWERS-Refer to SAPB
print: What is the purpose of MOL1, MOL2, and MOL3?
R2 - CORRECT ANSWERS-Refer to SAPB print: Which resistor is tapped to change
speed between open and close speed?
Rectifier RF - CORRECT ANSWERS-Refer to CPPB print: What changes the incoming
AC power into the DC power that operates the door motor circuit?
, Self-holding - CORRECT ANSWERS-Refer to SAPB print: When the car is traveling up
between the third and fourth floors, what is the condition of relays 3F 1-3?
Stores all car and hall calls - CORRECT ANSWERS-Which statement applies to the
collective control system?
TDCP - CORRECT ANSWERS-Refer to SAPB print: Which on-delay timer is used for
door close stall protection?
The car will run down in slow speed - CORRECT ANSWERS-Refer to SAPB print: If
contact D2 2-3 fails to close when the car runs down, what will happen [1 F2]?
The Wye-Delta motor starter could not energize - CORRECT ANSWERS-Refer to
CPPB print: What effect would the failure of contact US 5-6 to close have on the system
[1 B2]?
Three-phase, Full-wave - CORRECT ANSWERS-Refer to SAPB print: What type of
rectifier feeds the door operator?
When the car is leveling into the third landing - CORRECT ANSWERS-Refer to SAPB
print: If the car were running in response to a third floor call, when will 3C relay de-
energize?
If contact U2 2-3 (1 F2) fails to close when the car runs up what will happen? -
CORRECT ANSWERS-The car will run up in slow speed
If the main floor smoke sensor were activated by smoke, to which floor would the car be
recalled to? - CORRECT ANSWERS-Second
On phase 1 of firefighters service which contact disables the car call? - CORRECT
ANSWERS-EH3 9/7
Refer to sheet [1 F2]. What will happen if we ground terminal 18? - CORRECT
ANSWERS-Fuse 1 will open
Refer to sheet 2 area C4 of the wiring diagrams. If the car were running in response to a
second floor call, when will 2C relay de-energize? - CORRECT ANSWERS-When the
2F relays energize
Vanes or fins mounted in the hoistway or on the car, are used to operate what type of
switches? - CORRECT ANSWERS-Magnetic switches
What area is the door close push button located? - CORRECT ANSWERS-(2 C4)
What changes the incoming AC power into the DC power that operates the door motor
circuit? - CORRECT ANSWERS-Rectifier RF
