PLUMBER’S EXAM | INTERIOR DESIGN PROFESSIONAL EXAM
2026/2027 LATEST UPDATE | QUESTIONS AND VERIFIED ANSWERS
| GRADED A+
Which of the following would not cause a toilet to continually run?
A) Poor float adjustment
B) Flapper chain too long and caught under the flapper
C) Broken tank lid
D) Old and swollen flapper -
CORRECT|ANSWER
C) Broken tank lid
How would you remove a lodged obstruction in a toilet?
A) Plunger
B) Toilet auger
C) Both A & B
D) Call a plumber -
CORRECT|ANSWER
C) Both A & B
After changing an element on a hot water tank you should always do what before turning on the
breaker?
A) Fill out the warranty forms
, B) Fill the tank with water
C) Disconnect the thermostat
D) None of the above -
CORRECT|ANSWER
B) Fill the tank with water
As a hot water tank is filling up with water you should:
A) Clean up
B) Flush the toilets
C) Purge the tank of air
D) Leave the area -
CORRECT|ANSWER
C) Purge the tank of air
The pilot light on a gas water heater won't stay lit. What might cause the problem?
A) The burner
B) The thermocouple
C) The thermostat
D)The T & P valve -
CORRECT|ANSWER
2026/2027 LATEST UPDATE | QUESTIONS AND VERIFIED ANSWERS
| GRADED A+
Which of the following would not cause a toilet to continually run?
A) Poor float adjustment
B) Flapper chain too long and caught under the flapper
C) Broken tank lid
D) Old and swollen flapper -
CORRECT|ANSWER
C) Broken tank lid
How would you remove a lodged obstruction in a toilet?
A) Plunger
B) Toilet auger
C) Both A & B
D) Call a plumber -
CORRECT|ANSWER
C) Both A & B
After changing an element on a hot water tank you should always do what before turning on the
breaker?
A) Fill out the warranty forms
, B) Fill the tank with water
C) Disconnect the thermostat
D) None of the above -
CORRECT|ANSWER
B) Fill the tank with water
As a hot water tank is filling up with water you should:
A) Clean up
B) Flush the toilets
C) Purge the tank of air
D) Leave the area -
CORRECT|ANSWER
C) Purge the tank of air
The pilot light on a gas water heater won't stay lit. What might cause the problem?
A) The burner
B) The thermocouple
C) The thermostat
D)The T & P valve -
CORRECT|ANSWER
