Identify an incorrect statement about Dutch bond —

• Alternate courses are of headers and stretchers

• Quoin of a stretcher course is a three-quarter bat

• A header is introduced next to the three-quarter bat in every alternate stretcher course

• Every header is centrally supported over the stretcher below it

In case of an obtuse squint, the enclosed angle on the inside wall usually varies between —

• 90° to 180°

• 180° to 360°

• 105° to 135°

• 120°

Which of the following is an example of water-proof, vermin-proof, dustless, and jointless flooring?

• Asphalt flooring

• Cork flooring

• Linoleum flooring

• Magnesite flooring

Sleeper walls in ground floors are constructed at a centre-to-centre spacing of —

• 2–4 m

• 1.2–1.8 m

• 0.5–1 m

• None of these

The economic spacing of roof trusses depends mainly upon —

• Cost of purlins and cost of roof covering

• Cost of roof covering and dead load

• Dead load and live load

• Live load and cost of purlin

In folded-plate roofs, formwork can be removed after —

• 7 days

• 3 days

• 14 days

• 21 days

Which type of bearing is used where slight angular misalignment occurs between shaft and housing?

• Self-aligning bush bearing

• Adjustable slide bearing

• Split bearing

• Solid bearing

Which among the following bearings can take vertical thrust load but not radial load?

• Ball bearing

• Tapered roller bearing

• Roller bearing

• Thrust ball bearing

A barstool is subjected to —

• Radial load only

• Thrust load only

• Both radial and thrust load

• Neither

The advantage of a tapered roller bearing is that —

• Each roller shares total workload

• Each roller aligns itself between cup and cone

• Wide contact area ensures accurate alignment

• All of the above