According to the ABNT-NBR 12779, what are the situations to be avoided for greater durability of the hose? I - Dragging the hose without pressure....
According to the ABNT-NBR 12779, what are the situations to be avoided for greater durability of the hose?
I - Dragging the hose without pressure.
II - Direct contact with fire, embers, hot surfaces.
III - Curving the end connected to the hydrant sharply.
IV - Contact with chemicals (except as indicated by the manufacturer).
V - Remaining with the hose connected to the hydrant or pump.
VI - Violent maneuvers of derivatives or abrupt closure of nozzles or records, or sudden entry of air into the line.
VII - Falling of unions.
a) I, II, III, IV, V, VI and VII are correct.
b) I, II, III, IV and V are correct.
c) II, III, IV, V, VI and VII are correct.
d) I, II, IV, V and VI are correct.
I - Dragging the hose without pressure.
II - Direct contact with fire, embers, hot surfaces.
III - Curving the end connected to the hydrant sharply.
IV - Contact with chemicals (except as indicated by the manufacturer).
V - Remaining with the hose connected to the hydrant or pump.
VI - Violent maneuvers of derivatives or abrupt closure of nozzles or records, or sudden entry of air into the line.
VII - Falling of unions.
a) I, II, III, IV, V, VI and VII are correct.
b) I, II, III, IV and V are correct.
c) II, III, IV, V, VI and VII are correct.
d) I, II, IV, V and VI are correct.
💡 1 Resposta
Ed 
De acordo com a ABNT-NBR 12779, as situações a serem evitadas para maior durabilidade da mangueira são: I - Arrastar a mangueira sem pressão. II - Contato direto com fogo, brasas, superfícies quentes. III - Curvar bruscamente a extremidade conectada ao hidrante. IV - Contato com produtos químicos (exceto conforme indicado pelo fabricante). V - Permanecer com a mangueira conectada ao hidrante ou bomba. VI - Manobras violentas de derivados ou fechamento abrupto de bicos ou registros, ou entrada súbita de ar na linha. VII - Queda de uniões. A alternativa correta é a letra "b) I, II, III, IV e V são corretas".
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