Preview Questions Mason/Bricklayer | Role Specific Skill

Question 1: What is the difference between Type N and Type S mortar?

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Type S is suitable for non-load-bearing applications, while Type N is for structural work

Type N is stronger than Type S and used for heavy-duty work

There is no significant difference between the two

Type N is suitable for general use, while Type S is stronger and used for load-bearing applications

Question 2: What is the standard depth for mortar joints between bricks in most masonry construction?

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5/8 inch

1/2 inch

1/4 inch

3/8 inch

Question 3: How does the addition of fly ash or slag impact concrete mix performance?

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It weakens the concrete mix, making it unsuitable for structural work

It has no effect on the concrete's strength

It makes the mix set too quickly, causing cracking

It improves durability, workability, and can reduce costs

Question 4: When constructing a double-brick wall for insulation purposes, what is the recommended gap between the two layers?

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100mm

25mm

50mm

10mm

Question 5: How does surface contamination impact the laying of bricks?

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It helps with adhesion by creating natural pores

It can prevent proper mortar bonding, leading to weak joints

It has no impact as long as the mortar is applied thickly

It makes the surface easier to work with

Question 6: Which is the correct mortar mix ratio for a standard brick wall in dry conditions?

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1 part cement, 3 parts sand

1 part cement, 4 parts sand

1 part cement, 1 part lime, 6 parts sand

1 part lime, 2 parts sand