C-54 Examination Latest Update Exam 275 Questions with 100% Verified Correct Answers Guaranteed A+

C-54 Examination Latest Update 2025-2026 Exam
275 Questions with 100% Verified Correct
Answers Guaranteed A+

"dog-leg" stairway has what kind of lathing? - CORRECT ANSWER: one half-turn
landing


(-) is NOT a waterproofing admixture - CORRECT ANSWER: THL dust


(-) is NOT true of epoxies. - CORRECT ANSWER: they have a very long pot life


(-) is the maximum spacing allowed for expansion joints in concrete surfaces on white
interior tile is laid. - CORRECT ANSWER: 30 ft


(-) is used to set ceramic tile in Roman tubs: - CORRECT ANSWER: Portland cement
mortar


(-) is when you throw dry cement along the border of wall or corner of a countertop: -
CORRECT ANSWER: dusting


(-) water is used in preparing the mortar for Roman tubs: - CORRECT ANSWER:
potable


57. The next step is (-) when you check a Roman tub after the scratch coat has been
laid. - CORRECT ANSWER: fill with water to overflow and wait for 24 hours


A 90° corner is specified when installing a sink, the cabinet should be (-)wider than the
sink from front to back. - CORRECT ANSWER: 2 inches

,A 90° corner is specified when installing a sink, the deck lath should be held away from
the wall: - CORRECT ANSWER: 1 inches


A bond is: - CORRECT ANSWER: adherence of one material to another


A deflection standard of 1/360, the span means that a wall 8 feet long must not be able
to bow more than: - CORRECT ANSWER: 1/4in: 8x12=96/360=0.27


A dispute arises between you and another contractor about who is responsible for
cleaning up some scraps and trash. The owner pays for the clean-up and charges you
(the C-54 contractor) because the architect determines that you are the responsible
party. This procedure is: - CORRECT ANSWER: in accordance with standard practice.


A mortar bed should be (-) thick to require a scratch coat over cement. - CORRECT
ANSWER: 3/4"


A nail and a rake are used in setting: - CORRECT ANSWER: thresholds


A new installation should never be acid cleaned. Floors should cure for at least (-) days
before cleaning. - CORRECT ANSWER: 3


A resin base cement grout can be used as a bond coat and as a: - CORRECT
ANSWER: setting bed


A Roman bath should be water-tested: - CORRECT ANSWER: at least 24 hours


A story pole can be used to: - CORRECT ANSWER: determine the size of end cuts


A tile cove is specified when installing a sink, the cabinet should be (-) wider than the
sink from front - CORRECT ANSWER: 4 inches

, A tile cove is specified when installing a sink, the deck lath should be held away from
the wall: - CORRECT ANSWER: 3 inches


Adding water and remixing mortar will tend to cause mortar to - CORRECT ANSWER:
Weaken


Adjusting tile after it is applied to a ceiling, you can expеct: - CORRECT ANSWER: to
break the bond


After a worker sandblasts a wall, apply: - CORRECT ANSWER: dash coat


After the first row of tile is applied, proceed with not more than how many rows at a
time? - CORRECT ANSWER: four


After the plane has been carefully studied for the layout of the stairs, what procedure is
followed next? - CORRECT ANSWER: the rise and run of the stairs are determined


All lining materials shall be pitched (-) inch per foot. - CORRECT ANSWER: 1/4


An ample width for a control joint is: - CORRECT ANSWER: 1/4 inch


Anchors should be formed from anchors made of: - CORRECT ANSWER: соpper


Approved waterproofing membrane, mortar bed, and finished construction shall conform
to: - CORRECT ANSWER: UPC


Asphalt used in Roman tub installation shall conform to federal specifications -
CORRECT ANSWER: Type Z, grade 2, class A


At no time shall the mortar wetting bed be over (-) inches thick - CORRECT ANSWER:
1/2