A Stair turning through three right angles is known as a ________ stair.(a) Three Quarter Turn(b) Two Quarter Turn(c) Four Quarter Turn(d) Single Quarter TurnI had been asked this question during an interview for a job.The query is from Types of Stairs topic in portion Arches, Lintels, Stairs and Formwork of Construction & Building Materials

A Stair turning through three right angles is known as a ________ stai

1.	A Stair turning through three right angles is known as a ________ stair.(a) Three Quarter Turn(b) Two Quarter Turn(c) Four Quarter Turn(d) Single Quarter TurnI had been asked this question during an interview for a job.The query is from Types of Stairs topic in portion Arches, Lintels, Stairs and Formwork of Construction & Building Materials
Answer» The correct OPTION is (a) THREE Quarter Turn Easy explanation: In Three Quarter Turn, an open well is FORMED. This type of stair is used when the length of the stairs LIMITED and when the VERTICAL distance between the two floors is quite large.

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