10 Questions
According to Prof.R.H.Richards’ Rule, the weight taken for sample should be proportional to the square of the diameter of the smallest particle.
False
The Mode of Occurrence of the Metallic constituents makes it easier to sample when the metal is carried by a few pieces in a large mass of barren material.
False
One of the conditions governing sampling is that the ratio of weight of sample to the fineness of division should not be defined.
False
The Ratio of weight of the 1st Sample to the total weight of the bulk does not depend on the uniformity of composition and fineness of division of the bulk material.
False
According to General Sampling Practice, the 1st sample should be cut out from 5% to 20% of the ore bulk.
True
The Methods of cutting out the Sample do not aim to obtain a fair average proportion of all different qualities and sizes of the parent bulk material.
False
It is not necessary to reduce everything to smaller size and thorough mixing before taking the 1st cut for samples as per sampling requirements.
False
The weight taken for sample should be inversely proportional to the square of the diameter of the largest particle according to Prof.R.H.Richards’ Rule.
False
In qualitative analysis, it is not important to consider the Mode of Occurrence of the Metallic constituents for successful sampling.
False
According to conditions governing sampling, there is no need for a definite ratio between the weight of the sample and the size of the ore particle.
False
Learn about important criteria for selecting analytical methods such as accuracy, sample availability, concentration range, interference, and physical/chemical properties of analytes. Understand the differences between gravimetric and titrimetric methods with practical examples.
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