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Foam extinguishers : If the burning liquid is in a container the jet should be directed at the inside edge of the vessel or at a vertical surface in order to break the jet and allow the foam to build up and spread across the surface of the liquid (Figure). If this is not possible, the correct procedure is to stand well back (perhaps as far as 6 or 7 m) and to direct the jet with a gentle sweeping movement to allow the foam to drop down and form a layer on the surface of the liquid (Figure). Do not aim the jet directly into the liquid as this will drive the foam under the surface where it will be ineffective in extinguishing the fire and may spread the fire by splashing the liquid on the surroundings.
Figure: Use of foam extinguisher-I. Fig.12.4: Use of foam extinguisher-11.
For water soluble/miscible solid and liquid wastes The familiar method of mopping the waste with plenty of water and running the same into the drainage could be done for miscib
I need help with my anatomy homework.
In Fehling's Test The free sugar group (aldehyde or ketone) reduces the Cu (cupric) ions in an alkaline environment to form Cu 10 (cuprous oxide) and the sugar is itself ox
Explain Functions of the Pancreas - Neutralising action Neutralising action: Pancreatic juice is alkaline in nature and acid chyme is rendered alkaline by the strong alkalinity
A famous downslope wind that occurs in North America on the East side of the Rocky Mountains is called a: chinook
lmmunoglobulin G - classification of antibodies Major defence against bacteria and their toxins. It is the major Ig - 80% in the body, can cross the capillary wall very easily
how to do
We will first give a brief description of the qocial and economic changes of this period so that developments in science can be seen in the proper perspective. Already, by the
Explain the Pontine Centre The rhythmic discharge of the neurons in the respiratory centre is modified by centers in the pons (apneustic and pneumotaxic centre). Activity in th
(a) What are Agent-based models? What are turtles and patches? How are turtles programmed in netlogo? If you have a background in computer programming or if you are brave, play ar
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