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100+ Free CPC33020 Bricklaying Practice Questions

Certificate III in Bricklaying and Blocklaying (CPC33020) practice questions are available now; exam metadata is being verified.

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Key Facts: CPC33020 Bricklaying Exam

100

Practice Questions

OpenExamPrep

CPC33020

National Code

training.gov.au

28 units

20 core + 8 elective

training.gov.au

~1300 hrs

Volume of Learning

training.gov.au

M3 1:1:6

General Mortar (AS 3700)

AS 3700

Competency

Assessment Type

ASQA

The Certificate III in Bricklaying and Blocklaying (CPC33020) is the nationally recognised Australian trade qualification for bricklayers and blocklayers, delivered by Registered Training Organisations (RTOs) under ASQA and usually completed via a 3-4 year apprenticeship. It is competency-based: there is no single national multiple-choice exam; instead, 28 units of competency (20 core + 8 elective, ~1300 hours of learning) are assessed through practical demonstration and knowledge evidence in real or simulated workplaces. Trade theory spans bricklaying and blocklaying methods, AS 3700 mortar classes and mixes, bonds and coursing, setting out, cavity and solid walls, paving, masonry materials, NCC masonry requirements, and scaffolding/WHS. This free prep includes 100 research-based practice questions with explanations and an AI tutor.

Sample CPC33020 Bricklaying Practice Questions

Try these sample questions to test your CPC33020 Bricklaying exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1What is the standard work (manufacturing) size of a common Australian clay brick?
A.240 x 120 x 86 mm
B.230 x 110 x 76 mm
C.215 x 102 x 65 mm
D.190 x 90 x 90 mm
Explanation: The standard Australian clay brick has a work size of 230 mm long x 110 mm wide x 76 mm high. Adding a 10 mm mortar joint gives the coordinating (format) size of 240 x 120 x 86 mm.
2Using a standard brick height of 76 mm and a 10 mm mortar joint, what is the vertical gauge (height) of one brick course?
A.76 mm
B.86 mm
C.90 mm
D.100 mm
Explanation: One course equals the brick height (76 mm) plus one bed joint (10 mm), giving an 86 mm vertical gauge. Seven courses therefore rise 600 mm, the common gauge bricklayers set on the gauge rod.
3What is the standard nominal thickness of a mortar bed joint in clay brickwork?
A.5 mm
B.10 mm
C.15 mm
D.20 mm
Explanation: AS 3700 and standard practice specify a nominal 10 mm mortar joint for both bed and perpend joints. This thickness keeps coursing on gauge and provides adequate bond and weather resistance.
4In bricklaying terminology, what is a 'perpend' joint?
A.The horizontal mortar joint between courses
B.The vertical mortar joint between bricks in the same course
C.The joint between a wall and the slab
D.The cavity between two leaves of brickwork
Explanation: A perpend (or 'perp') is the vertical mortar joint between the ends of bricks in the same course. Perpends should be kept plumb and in line vertically (every alternate course in stretcher bond) for appearance and bond strength.
5Which mortar mix proportions (cement:lime:sand by volume) correspond to an M3 general-purpose mortar under AS 3700?
A.1:0:3
B.1:1:6
C.1:2:9
D.1:0.25:3
Explanation: M3 mortar is a 1:1:6 mix of cement:lime:sand by volume and is the standard general-purpose mortar for most residential brickwork under AS 3700. The lime improves workability and bond while the mix gives adequate durability for general use.
6For masonry within 1 km of a non-marine coastline or in a severe marine environment, AS 3700 generally requires a minimum mortar durability class of:
A.M1
B.M2
C.M3
D.M4
Explanation: M4 is the highest-durability mortar class (1:0.25:3) and is required as a minimum for severe exposure such as marine/coastal environments and cyclonic regions. The richer cement content resists salt attack and weathering.
7What is the primary purpose of adding hydrated lime to a cement mortar mix?
A.To increase compressive strength only
B.To improve workability, water retention and bond
C.To make the mortar set faster
D.To colour the mortar
Explanation: Lime improves the workability ('fattiness') and water retention of mortar, helping it spread smoothly and bond well to the masonry units. It also allows minor autogenous healing of fine cracks. It does not primarily increase strength.
8In stretcher bond, how are the bricks arranged?
A.Every course shows only header faces
B.All bricks laid as stretchers with each course offset by half a brick
C.Alternating headers and stretchers in every course
D.Bricks laid diagonally at 45 degrees
Explanation: Stretcher bond (running bond) lays every brick as a stretcher (long face showing), with each course lapped half a brick over the one below. It is the most common bond for single-leaf and cavity walls because the wall is only half a brick thick.
9Which traditional bond consists of alternating courses of headers and stretchers?
A.Stretcher bond
B.English bond
C.Flemish bond
D.Stack bond
Explanation: English bond alternates a full course of headers with a full course of stretchers, producing a very strong solid wall. A queen closer is used next to the quoin to set the quarter-brick lap.
10In Flemish bond, the arrangement within each individual course is:
A.All stretchers
B.All headers
C.Alternating headers and stretchers in the same course
D.Two stretchers then one header
Explanation: Flemish bond places a header and a stretcher alternately along each course, with headers centred over the stretcher below. It is prized for its decorative appearance in solid one-brick walls.

About the CPC33020 Bricklaying Practice Questions

Verified exam format metadata for Certificate III in Bricklaying and Blocklaying (CPC33020) is pending. The practice questions above remain available while official exam length, timing, passing score, fee, and administrator details are reviewed.