Anti-siphonage pipes are omitted in single stack system

Correct Option: C

Anti-siphonage pipes are omitted in single stack system

BEES is the acronym for Building for Environmental and Economic Sustainability, a software tool developed by the National Institute of Standards and Technology (NIST).

Correct Option: A

BEES is the acronym for Building for Environmental and Economic Sustainability, a software tool developed by the National Institute of Standards and Technology (NIST).

C is the correct answer.

Correct Option: C

C is the correct answer.

The maximum angle of inclination of an escalator to the horizontal floor level is 30 degrees with a standard rise up to about 60 feet (18 m). Modern escalators have single piece aluminum or steel steps that move on a system of tracks in a continuous loop.

Correct Option: C

The maximum angle of inclination of an escalator to the horizontal floor level is 30 degrees with a standard rise up to about 60 feet (18 m). Modern escalators have single piece aluminum or steel steps that move on a system of tracks in a continuous loop.

1 centre + 4 quadrants

Correct Option: D

1 centre + 4 quadrants