D22 FACE THE CHALLENGE

Which of the following tools is used for measuring angle?

• Try square
• Bevel protractor
• Vernier caliper
• Feeler gauge

Answer explanation

Bevel protractors are used to measure and layout angles precisely.

Which command is used to convert discrete objects into a polyline in AutoCAD?

• PEDIT
• JOIN
• LINE
• GROUP

Answer explanation

PEDIT command allows conversion of lines into polylines and editing them.

Which stone is best suited for construction in coastal areas?

• Granite
• Limestone
• Laterite
• Quartzite

Answer explanation

Granite resists chemical weathering and is best suited for coastal construction.

The principal line used for dimensioning in drawing is:

• Center line
• Construction line
• Extension line
• Dimension line

Answer explanation

Dimension lines are used to indicate the sizes and distances in technical drawings.

A septic tank is generally cleaned after:

• 1 year
• 6 months
• 2–3 years
• 4–5 years

Answer explanation

Septic tanks are usually cleaned every 2–3 years depending on usage and size.

The minimum thickness of DPC in buildings is:

• 10 mm
• 20 mm
• 25 mm
• 40 mm

Answer explanation

As per BIS standards, the minimum thickness of DPC should be 40 mm.

The topmost part of a staircase where two flights meet is called:

• Landing
• Tread
• Plinth
• Flight

Answer explanation

Landing is the platform provided between two flights in a staircase.

Which one of the following is not a type of shallow foundation?

• Pad footing
• Grillage footing
• Raft foundation
• Pile foundation

Answer explanation

Pile foundation is a deep foundation, not a shallow one.

Which type of drawing shows the interior features of an object by cutting through it?

• Plan view
• Elevation view
• Section view
• Detail view

Answer explanation

Sectional views are used to show internal features of objects.

Which component of a staircase is stepped on?

• Riser
• Tread
• Stringer
• Baluster

Answer explanation

The tread is the horizontal surface on which you step.