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__________ is the middle horizontal member of the shutter where the locking arrangement is provided.(a) Lock rail(b) Cross rail(c) Top rail(d) Bottom railI got this question in class test.I'd like to ask this question from Types of Doors topic in chapter Doors, Windows and Ventilators of Construction & Building Materials

Answer»

The correct ANSWER is (a) Lock RAIL

To explain I would say: The additional horizontal rails FIXED between the top and bottom rails of a SHUTTER are known as the intermediate or cross rails. A rail which is fixed between the top rail and cross trail is CALLED as Frieze rail.



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