PLUMBER’S EXAM | INTERIOR DESIGN PROFESSIONAL EXAM
2026/2027 LATEST UPDATE | QUESTIONS AND VERIFIED ANSWERS
| GRADED A+
What is the minimum dimension for a turning space in a water closet stall
intended for disabled persons?
A. 2.00 m
B. 1.20 m
C. 1.00 m
D. 1.50 m -
CORRECT|ANSWER
D
Who is empowered to administer the provision of Rep. Act 1378?
A. Office of the President
B. Congress of the Philippines
C. The Board of Examiners for Master Plumbers
D. Professional Regulation Commision -
CORRECT|ANSWER
C
What is the PRC Resolution Number is issued by the Board of Master Plumbing for the adoption and
promulgation of the Revised National Plumbing Code of the Philippines?
A. Res. No. 2
B. Res. No. 1378
C. Res. No. 4
D. Res. No. 962 -
CORRECT|ANSWER
C
,A kind of cleanout plugs that will be installed in case where raised heads may
cause hazards to passing personnel or vehicles.
A. depressed
B. countersunk
C. embedded
D. recessed -
CORRECT|ANSWER
B
The following are grounds for non-issuance of the certificate of registration by the Board of Master
Plumbers EXCEPT
A. convicted by court for any criminal offense
B. of unsound mind
C. guilty of immoral or dishonorable conduct
D. failure to pay the required fees -
CORRECT|ANSWER
D
Who shall set the criteria for the quality of drinking water from meteoric,
surface or underground sources?
A. National Water Resources Board
B. Department of Health
C. National Standards for Drinking Water
D. Department of Environment and Natural Resources -
CORRECT|ANSWER
C
, If a septic tank has a compartment that exceed 3.7 m in length, what should be the additional
requirement?
A. An additional manhole
B. Increase the size of the leaching chamber
C. Increase the number of compartments
D. Baffle wall is added -
CORRECT|ANSWER
A
Where the number of water closets in a floor level exceeds 20, how many of these shall be provided
to the disabled persons?
A. 1
B. 2
C. 3
D. 4 -
CORRECT|ANSWER
B
What kind of concealed connections on fixtures that it is required to provide an access panel or
utility at least 0.30 meter in its least dimension for easy
inspection and repair?
A. slip joint
B. ball and socket
C. hubless
D. flanged -
CORRECT|ANSWER
A
Which of the following could be omitted if the trap arm changes direction that
2026/2027 LATEST UPDATE | QUESTIONS AND VERIFIED ANSWERS
| GRADED A+
What is the minimum dimension for a turning space in a water closet stall
intended for disabled persons?
A. 2.00 m
B. 1.20 m
C. 1.00 m
D. 1.50 m -
CORRECT|ANSWER
D
Who is empowered to administer the provision of Rep. Act 1378?
A. Office of the President
B. Congress of the Philippines
C. The Board of Examiners for Master Plumbers
D. Professional Regulation Commision -
CORRECT|ANSWER
C
What is the PRC Resolution Number is issued by the Board of Master Plumbing for the adoption and
promulgation of the Revised National Plumbing Code of the Philippines?
A. Res. No. 2
B. Res. No. 1378
C. Res. No. 4
D. Res. No. 962 -
CORRECT|ANSWER
C
,A kind of cleanout plugs that will be installed in case where raised heads may
cause hazards to passing personnel or vehicles.
A. depressed
B. countersunk
C. embedded
D. recessed -
CORRECT|ANSWER
B
The following are grounds for non-issuance of the certificate of registration by the Board of Master
Plumbers EXCEPT
A. convicted by court for any criminal offense
B. of unsound mind
C. guilty of immoral or dishonorable conduct
D. failure to pay the required fees -
CORRECT|ANSWER
D
Who shall set the criteria for the quality of drinking water from meteoric,
surface or underground sources?
A. National Water Resources Board
B. Department of Health
C. National Standards for Drinking Water
D. Department of Environment and Natural Resources -
CORRECT|ANSWER
C
, If a septic tank has a compartment that exceed 3.7 m in length, what should be the additional
requirement?
A. An additional manhole
B. Increase the size of the leaching chamber
C. Increase the number of compartments
D. Baffle wall is added -
CORRECT|ANSWER
A
Where the number of water closets in a floor level exceeds 20, how many of these shall be provided
to the disabled persons?
A. 1
B. 2
C. 3
D. 4 -
CORRECT|ANSWER
B
What kind of concealed connections on fixtures that it is required to provide an access panel or
utility at least 0.30 meter in its least dimension for easy
inspection and repair?
A. slip joint
B. ball and socket
C. hubless
D. flanged -
CORRECT|ANSWER
A
Which of the following could be omitted if the trap arm changes direction that
