Thin joint masonry and masonry cladding.

Modern Methods of Construction

The Thin-Joint System

Thin-Joint blockwork gives a faster, more airtight build which meets the definition for Modern Methods of Construction. Thin-Joint is a Modern Method of Construction combining larger format Celcon Plus Blocks and Jumbo Blok ranges with Celfix, a specially developed Thin-Joint Mortar.

Multiple Choice

What type of sand is most suitable for mixing mortar?

• Silver sand.

• Building sand.

• Sharp sand.

• Coarse sand.

Multiple Choice

Which one of the following improves workability of mortar?

• Plasticiser.

• Ballast

• Retarder.

• Sand.

Multiple Choice

What is the name of the tool shown in the image below?

• Brick splitter.

• Panel saw.

• Block splitter.

• Masonry saw.

Multiple Choice

What is the name of the tool shown in the image below?

• Scoop.

• Sledge.

• Scutch.

• Rasp.

Multiple Choice

What is the name of the tool shown in the image below?

• Scutch.

• Rasp.

• Sledge.

• Scoop.

Multiple Choice

What is the name of the fixing shown in the image below?

• Wheel and bit.

• Drill and spacer.

• Screw and washer.

• Tie and retaining wheel.

Multiple Choice

What is the name of the component shown in the image below?

• Proprietary air brick.

• Cavity tray.

• Weep hole insert.

• Tingle plate

Multiple Choice

What is the name of the fixing components shown in the image?

• Wall starters.

• Vertical reinforcement.

• Frame ties.

• Butterfly ties.

Multiple Choice

What information is provided in a risk assessment?

• Building dimensions.

• Control measures.

• Schedule of work.

• Contract details.

Multiple Choice

The correct sequence when building thin joint blockwork is?

• mix, level and plumb.

• plumb, level and range

• level, range and gauge

• gauge, level and plumb.

Multiple Choice

What component is positioned in a cavity wall to allow ventilation?

• Weep hole.

• Wall tie.

• Air brick.

• Cavity tray.

Multiple Choice

To infill using thin joint blockwork, which one of the following must be in place?

• Gauge rod.

• Quoins.

• Roof truss.

• Openings.

Multiple Choice

A drill and whisk should be used to?

• mix thin joint mortar

• insert cavity ties

• cut blocks

• smooth uneven surfaces.

Multiple Choice

What is the correct sequence for cutting and positioning blocks?

• Cut, position, measure, mark.

• Mark, cut, position, measure.

• Cut, position, mark, measure.

• Measure, mark, cut, position.

Multiple Choice

Which one of the following mechanical tools should be used to cut blocks?

• Chop saw.

• Pruning saw.

• Angle grinder.

• Rebate cutter.

Multiple Choice

Which one of the following hazards is most common when cutting blocks?

• Falling materials

• Mortar splashes.

• Dust particles.

• Skin burns.

Multiple Choice

Which one of the following hazards is most common when stacking blocks?

• Dust particles.

• Moving vehicles.

• Mortar splashes.

• Trapped fingers.

Multiple Choice

Which one of the following hazards is most common when stacking blocks?

• Dust particles.

• Moving vehicles.

• Mortar splashes.

• Trapped fingers.

Multiple Choice

Which one of the following hazards is most common when working from an access platform?

• Soil subsidence.

• Entrapment.

• Electrocution.

• Falling objects.

Multiple Choice

What is the reason for protecting completed blockwork with plastic sheeting?

• To prevent theft.

• To prevent subsidence.

• To prevent UV damage.

• To prevent moisture damage.

Multiple Choice

What is the reason for using a horizontal DPC?

• To prevent subsidence.

• To prevent mortar discolouration.

• To prevent moisture penetration.

• To prevent wind loading.

Multiple Choice

Which one of the following is a method used to achieve half bond in blockwork?

• Broken bond.

• Stretcher bond.

• Quarter bond.

• Header bond.

Multiple Choice

Which one of the following best describes broken bond?

• Courses using a mixture of brick and blocks.

• Courses using cut blocks.

• Courses using full blocks.

• Courses using a mixture of lightweight and dense blocks.

Multiple Choice

What is the minimum size of a block reveal with a 100 mm cavity when using 150 mm lightweight blocks?

• 150 mm.

• 250 mm.

• 350 mm.

• 450 mm.

Multiple Choice

What is the minimum bearing of a lintel when using thin joint masonry?

• 50 mm.

• 100 mm.

• 150 mm

• 200 mm.

Multiple Choice

Cavity trays should be positioned ?

• above openings.

• at the side of openings.

• in solid floors.

• below drainage.

Multiple Choice

The purpose of insulation is to?

• limit construction cost.

• reduce heat loss.

• prevent moisture penetration.

• increase air flow.

Multiple Choice

The importance of horizontal bed reinforcement is to reduce?

• wall rigidity.

• trench collapse.

• damp penetration.

• structural movement.

Multiple Choice

In thin joint walling, what is the purpose of a vertical movement joint?

• To reduce heat loss.

• To form a blockwork cavity.

• To prevent moisture penetration.

• To allow for the expansion of blockwork.

Multiple Choice

Which one of the following should be used to connect block walls to existing masonry?

• Swivel couplers.

• Proprietary wall starters.

• Expansion joints.

• Gallow angle brackets.

Multiple Choice

What is the correct procedure for securing angle brackets to concrete?

• Position, mark, drill, plug and screw.

• Drill, plug, position, mark and screw.

• Position, screw, drill, mark and plug.

• Plug, screw, mark, drill and position.

Multiple Choice

1 What type of water should be used when mixing mortar?

• Foul water.

• Rain water.

• Grey water.

• Drinking water.

Multiple Choice

Which one of the following materials is required for laying thin joint blockwork?

• Ballast.

• Sand.

• Adhesive.

• Concrete.

Multiple Choice

What is the name of the tool shown in the image below?

• Whisk.

• Scoop.

• Sledge.

Multiple Choice

What is the name of the tool shown in the image below?

• Scoop.

• Rasp.

• Scutch

• Sledge.

Multiple Choice

What is the name of the tool shown in the image below?

• Cutting square.

• T square.

• Scoop.

• Sledge.

Multiple Choice

What type of ties are shown in the image below?

• Wall starter.

• Butterfly.

• Movement.

• Frame.

Multiple Choice

What is the name of the component shown in the image below?

• Corner profile.

• Steel lintel.

• Scaffold standard.

• Horizontal ledger.

Multiple Choice

What is the item shown in the image below?

• Expansion foam.

• Damp proof membrane.

• Joint reinforcement mesh.

• Cavity wall insulation.

Multiple Choice

Which document would show the correct procedure for cutting blocks?

• Method statement.

• Bill of quantities.

• Site programme.

• Building Regulations.

Multiple Choice

Which one of the following methods should be used to ensure the first course of thin joint blockwork is level and plumb?

• Use a dry bed.

• Use a concrete bed.

• Use a traditional mortar bed.

• Use a thin joint adhesive bed.

Multiple Choice

What component is positioned in a cavity wall to allow moisture to escape?

• Weep hole.

• Lintel.

• Insulation.

• Air brick.

Multiple Choice

Which of the following is used to ensure infill panels are straight?

• Tape measure.

• Line and pins.

• Gauge lath.

• Storey rod.

Multiple Choice

What piece of equipment is used to produce thin joint mortar?

• Wheelbarrow.

• Shovel.

• Mixer.

• Whisk.

Multiple Choice

What is the correct sequence for cutting and positioning blocks?

• Measure, mark, cut, position.

• Cut, position, measure, mark.

• Mark, cut, position, measure.

• Mark, measure, cut, position.

Multiple Choice

Which one of the following mechanical tools should be used to cut blocks?

• Bench grinder.

• Rebate cutter.

• Chop saw.

• Table saw.

Multiple Choice

Which one of the following hazards is most common when mixing materials?

• Falling materials.

• Mortar splashes.

• Slips and trips.

• Moving vehicles.

Multiple Choice

Stacking blocks more than 600 mm away from the workstation is most likely to lead to?

• slips and trips.

• overreaching.

• dermatitis.

• contamination.

Multiple Choice

Which one of the following hazards is most common when using a power tool with a damaged cable?

• Electrocution.

• Slips and trips.

• Sprains and strains.

• Abrasions.

Multiple Choice

What is the reason for using temporary support when erecting blockwork?

• To allow for settlement.

• To prevent injury.

• To reduce cost.

• To stop theft.

Multiple Choice

What is the reason for using a vertical DPC?

• To prevent corrosion.

• To prevent cavity collapse.

• To prevent mortar droppings.

• To prevent moisture penetration.

Multiple Choice

Which one of the following best describes dry bonding?

• Positioning blocks with mortar.

• Laying blocks above a lintel.

• Positioning blocks without mortar.

• Laying blocks below a cill.

Multiple Choice

The minimum lap for blockwork bonding in thin joint walling is?

• three quarter lap.

• half lap.

• quarter lap

• one third lap.

Multiple Choice

What is the minimum size of a block reveal with a 100 mm cavity when using 100 mm lightweight blocks?

• 400 mm.

• 300 mm.

• 200 mm.

• 100 mm.

Multiple Choice

What is the minimum bearing of a proprietary arch centre when using thin joint masonry?

• 200 mm.

• 150 mm.

• 100 mm.

• 50 mm

Multiple Choice

Cavity trays should be the same length as the ?

• lintel.

• cavity.

• arch.

• opening.

Multiple Choice

The purpose of insulation is to?

• reduce moisture penetration.

• increase energy efficiency.

• reduce building costs.

• increase air flow.

Multiple Choice

The importance of vertical bed reinforcement is to reduce?

• structural movement.

• damp penetration.

• trench collapse.

• wall rigidity.

Multiple Choice

In thin joint walling, what is the purpose of a vertical movement joint?

• To allow for the expansion of blockwork.

• To improve thermal efficiency.

• To increase lateral strength.

• To reduce noise pollution.

Multiple Choice

Proprietary wall starters are fixed to masonry using?

• bolts.

• resin.

• nails.

• clamps.

Multiple Choice

What is the correct depth for drilling a hole for use with a plastic plug?

• To the same length as the screw.

• To the same length as the plug.

• To the same depth as the drill bit.

• To the same width as the wall.