Occ 33 Construct complex masonry strucures

Once complete a section of plinth work during the summer at the base of the building, why is it necessary to cover the work before continuing with the building of the structure?

• To eliminate the possibility of mortar droppings staining the plinth work

• Protect from frost attack

• Allow scaffold poles to be placed on the plinth work

• To allow excess mortar from the joints to drop from the work above

A site manager has identified an arch that requires re-pointing. A tower scaffold has been made available to access the work, where would the information relating to 'maximum load' permitted be found

• Manufacturers information

• Site diary

• Materials specification

• Variation order

Which of the following British Standards governs the production of technical drawings in the construction industry?

• BS1142

• BS1192

• BS2142

• BS2192

When a discrepancy is identified on a working drawing, what action should be taken?

• Measure off the drawing with a scale rule

• Ignore the drawing and build anyway

• Discuss the measurement shown on drawing with the supervisor

• Estimate the correct measurement

A brick bonded pier cap has been damaged by frost. In order to ensure the correct materials are used to rebuild the cap, which brick would offer BEST protection against frost?

• Wire cut

• Hand made sand faced

• Class A engineering

• LBC

When producing a full size drawing for setting out an axed semi circular arch, the voussiers are marked out on the;

• Extrados

• Skewback

• Rise

• Soffit

An architect has drawn the details of an arch required in a new three storey house, the architect has stipulated that the arch must be axed. What does this mean?

• The bricks are cut with an axe

• The bricks in the arch are cut to wedge shape

• The joints between the arch are wedge shape

• The bricks and the joints are wedge shape

When supporting an arch centre, what must be added to the supports to allow the arch centre to drop free and be removed?

• Arch centres do not require supporting

• Prop nailed to the arch centre

• Wooden struts

• Folding wedges

Which method would be used to ensure the accuracy of a small wall curved on plan?

• Place the template at any point on each course

• Use the template on the first and last courses only

• Use a template at the setting out stage

• Use a trammel at the setting out stage

Perpendicular joints on the face of a convex circular wall on plan must be plumbed on the face in order to ensure the:

• Spaces between the joints are maintained throughout

• Joints are plumb, correct size is maintained and in line as the work progresses

• Spaces between small tight joints are maintained throughout

• Correct size is maintained and in line as the work progresses and there is minimal wastage.