D64 MASTER THE DAY

Which formwork material is experimental and used for complex shapes using geotextile sheets?

• Fabric formwork
• Plastic formwork
• Steel formwork
• Plywood formwork

Answer explanation

Fabric formwork using geotextile sheets is experimental and suited for complex shapes.

What is the main function of bracing in formwork?

• Hold sides together
• Prevent movement
• Shape concrete
• Support vertical load

Answer explanation

Bracing provides diagonal support to prevent movement of formwork.

Which type of reinforcement may be used without end anchorage if development length is satisfied?

• Plain bars
• Deformed bars
• TMT bars
• Structural steel bars

Answer explanation

Deformed bars can be used without end anchorage if development length requirements are met.

The clean-out hole at the bottom of column formwork is provided for:

• Ventilation
• Removing debris
• Pouring concrete
• Fixing reinforcement

Answer explanation

A clean-out hole at the bottom of column formwork allows removal of debris before concreting.

For slabs spanning up to 4.5m, props are removed after:

• 3 days
• 7 days
• 14 days
• 21 days

Answer explanation

Props to slabs spanning up to 4.5m are removed after 7 days.

In reinforced masonry columns, steel plates are generally of what thickness?

• 4 mm
• 5 mm
• 6 mm
• 8 mm

Answer explanation

Steel plates of about 6 mm thickness are provided at intervals in reinforced masonry columns.

Which type of slab system consists of bricks laid flat in multiple courses with steel bars in between?

• Jack arch slab
• RBC slab
• Hollow-tile slab
• Solid slab

Answer explanation

RBC slab has bricks laid flat in two or more courses with steel bars in between, grouted with mortar.

The IS code for high strength deformed steel bars is:

• IS 432 Part I
• IS 2062
• IS 1786
• IS 2502

Answer explanation

IS 1786 specifies requirements for high strength deformed steel bars.

What is the purpose of providing a kicker at the base of a column form?

• Drain water
• Locate form
• Increase strength
• Hold reinforcement

Answer explanation

A kicker (starter) helps locate and align the column form accurately at its base.

Which formwork material is lightweight, easily cleaned, and suitable for small repetitive works?

• Steel
• Plastic
• Timber
• Aluminium

Answer explanation

Plastic formwork is lightweight, easy to clean, and suited for small repetitive works.