Chicago License Exam General Knowledge
ACTUAL UPDATED QUESTIONS AND
CORRECT ANSWERS
What is the maximum number of fixture units on a 3" stack on buildings 3 stories or less?
A. 36 DFUs
B. 48 DFUs
C. 72 DFUs
D. 100 DFUs - CORRECT ANSWERS✅✅B. 48 DFUs
What is the smallest stack?
A. 3"
B. 4"
C. 5"
D. None of the above - CORRECT ANSWERS✅✅D. None of the above
What causes popping in a water heater?
A. Water too hot
B. Scale of lime deposits
C. Air in the tank
D. Gas valve turns off and on too quickly - CORRECT ANSWERS✅✅B. Scale of lime
deposits
What color is the secondary water in the city of Chicago?
A. Blue
B. Red
,C. Yellow
D. None of the above - CORRECT ANSWERS✅✅C. Yellow
What color are the Fire protection water pipes in the city of Chicago
A. Blue
B. Red
C. Yellow
D. None of the above - CORRECT ANSWERS✅✅B. Red
On triple basins, what basin has a double trap? (Refer to image)
A. #1
B. #2
C. #3
D. None of the above - CORRECT ANSWERS✅✅A. #1
At what temperature is water most dense?
A. 39 Degrees
B. 32 Degrees
C. 30 Degrees
D. 0 Degrees - CORRECT ANSWERS✅✅A. 39 Degrees
Poured lead joints shall have a depth of not less than...
A. 3/4"
B. 1"
C. 1-1/4"
D. 1' - CORRECT ANSWERS✅✅B. 1"
, Valves installed in any water service pipe shall be a...
A. Globe type
B. Full port valve
C. A minimum of 3/4"
D. All of the above - CORRECT ANSWERS✅✅B. Full port valve
What is the most common repair of the Sloan Flush Valve?
A. Springs
B. Diaphragm
C. Plunger
D. Change handle - CORRECT ANSWERS✅✅B. Diaphragm
The minimum size fixture vent is...
A. 1-1/4"
B. 1-1/2"
C. 2"
D. 3" - CORRECT ANSWERS✅✅A. 1-1/4"
Liquid waste exceeding what temperature shall not be discharged directly into a house drain?
A. 130 Degrees
B. 140 Degrees
C. 150 Degrees
D. 160 Degrees
E. 180 Degrees - CORRECT ANSWERS✅✅E. 180 Degrees
ACTUAL UPDATED QUESTIONS AND
CORRECT ANSWERS
What is the maximum number of fixture units on a 3" stack on buildings 3 stories or less?
A. 36 DFUs
B. 48 DFUs
C. 72 DFUs
D. 100 DFUs - CORRECT ANSWERS✅✅B. 48 DFUs
What is the smallest stack?
A. 3"
B. 4"
C. 5"
D. None of the above - CORRECT ANSWERS✅✅D. None of the above
What causes popping in a water heater?
A. Water too hot
B. Scale of lime deposits
C. Air in the tank
D. Gas valve turns off and on too quickly - CORRECT ANSWERS✅✅B. Scale of lime
deposits
What color is the secondary water in the city of Chicago?
A. Blue
B. Red
,C. Yellow
D. None of the above - CORRECT ANSWERS✅✅C. Yellow
What color are the Fire protection water pipes in the city of Chicago
A. Blue
B. Red
C. Yellow
D. None of the above - CORRECT ANSWERS✅✅B. Red
On triple basins, what basin has a double trap? (Refer to image)
A. #1
B. #2
C. #3
D. None of the above - CORRECT ANSWERS✅✅A. #1
At what temperature is water most dense?
A. 39 Degrees
B. 32 Degrees
C. 30 Degrees
D. 0 Degrees - CORRECT ANSWERS✅✅A. 39 Degrees
Poured lead joints shall have a depth of not less than...
A. 3/4"
B. 1"
C. 1-1/4"
D. 1' - CORRECT ANSWERS✅✅B. 1"
, Valves installed in any water service pipe shall be a...
A. Globe type
B. Full port valve
C. A minimum of 3/4"
D. All of the above - CORRECT ANSWERS✅✅B. Full port valve
What is the most common repair of the Sloan Flush Valve?
A. Springs
B. Diaphragm
C. Plunger
D. Change handle - CORRECT ANSWERS✅✅B. Diaphragm
The minimum size fixture vent is...
A. 1-1/4"
B. 1-1/2"
C. 2"
D. 3" - CORRECT ANSWERS✅✅A. 1-1/4"
Liquid waste exceeding what temperature shall not be discharged directly into a house drain?
A. 130 Degrees
B. 140 Degrees
C. 150 Degrees
D. 160 Degrees
E. 180 Degrees - CORRECT ANSWERS✅✅E. 180 Degrees
