________ is the area of shutter enclosed between the adjacent rails.

Related MCQs

• _________ is the top most horizontal member of the shutter.
• __________ is the middle horizontal member of the shutter where the locking arrangement is provided.
• In a ventilator, top edge of shutter opens,
• The middle horizontal member of the shutter is called:
• The entire assembly of styles, panels and rails is known as the __________
• The ratio of the total floor area inclusive of all the floors to the area of the plot on which building stands is known as ___________
• Which of the following relations between loudness and intensity is correct?
• Ventilation arising from the temperature difference between outside and inside takes place due to ____________ effect.
• The general temperature difference between inside and outside of a room is not more than ____________