Assay Masters' Evaluation
Assay Masters' Evaluation Quiz
Test your knowledge and skills in gold assay techniques with our comprehensive quiz designed for professionals in the field. This quiz covers critical information from hallmarking to safety measures and quality control techniques.
- 23 engaging questions
- Multiple choice and checkbox formats
- Evaluate your understanding of gold assay practices
What is the fineness equivalent to 14K as per Indian Standard IS 1417?
580
575
585
586
565
Can 24KS995 jewellery be hallmarked?
Yes
No
Yes, but only if jeweller declared the net weight of gold in the jewellery
What is the maximum time within which hallmarked jewellery should be delivered to customer?
6 hours
12 hours
24 hours
48 hours
No time limit required
What additional information should be collected while receiving hollow jewellery filled with non-gold material?
Gross weight of gold
Net weight of gold
Non-gold material used for filling
All of the above
None of the above
What is the minimum hallmarking charges for a mixed lot of Gold jewellery?
45
450
225
200
90
True or False: 3 rings (22K) and 3 bangles (18K) can be processed together as a mixed lot, if they are made by the same artisan..
False
True
True, if the jeweller says it is a mixed lot.
Which of these is not an environmental condition to be maintained in a centre?
XRF operating temperature between 20-25 degrees
Dust free environment in areas using electronic equipment
Vibration free table for Assay Balance
Vibration free table for Laser Machine
Ergonomic seating in the laboratory
Why are CRMs/SRMs are used with XRF machines?
To test purity of CRMs/SRMs
To check for presence of prohibited elements
To check accuracy of XRF machine
For calibration of the XRF machine
To clear dust or dirt on the detector slide
What is the appropriate criteria for selecting samples from a lot after XRF testing
Pieces with Highest XRF value
Pieces with Lowest XRF value
Pieces with Lowest XRF value, from those pieces that meet the acceptance criteria
Pieces that cab be easily repaired
Pieces at random from the lot
Which of the following is not a sampling method as per IS 15820?
Drilling
Scraping
Cutting
Melting
Rolling
What is the temperature specified for pre-heating of cupels before cupellation?
1050 degrees
<1100 degrees
>1100 degrees
<1085 degrees
1056 degrees
What is the principal reason for melting gold before cupellation?
To remove moisture
To make rolling into strips easy
To make a homogeneous sample
To make cupellation faster
To remove any unwanted elements like Cadmium or Zinc
Which of the following can be used for Parting 1, as per IS 1418?
Nitric Acid with Specific Gravity 1.2
Nitric Acid with Specific Gravity 1.3
Nitric Acid with Specific Gravity 1.46
Nitric Acid with Specific Gravity less than 1.2
Mix of nitric acid and water in the ratio 1:1.5
The thickness of strip made after cupellation should be
Maximum 1mm
12-15mm
0.12-0.15mm
1.1-1.6mm
Less than 0.1mm
For cupellation how much lead should be added for a sample of 280mg?
4gm
6gm
8gm
2.3-3 times the weight of gold
Which of the following safety mechanisms is essential while performing cupellation?
Safety shoes
Visors/Shield
Pulse Oxymeter
Scrubber
Face mask
Lab coat/Apron
Hand Gloves
Digital watch
For an excellent assay process Delta value should be
Positive
Negative
0
+1
-1
For assay results to be considered satisfactory as per IS 1418, the value of repeatability should be
0.2-0.4
0
<=0.5
0.5
>0.5
Minimum how many proof gold cornets should be retained by assay master?
30 days' cornets
Last 30 assays' cornets
Last 15 days' cornets
Last 30 hours' cornets
None of the above
Which of the following statements is true?
CCTV recordings of laboratory are not required
CCTV footage back up should be available for minimum of 30 days
CCTV outtage records are not required if centre has an AMC arrangement
CCTV footage can be turned off if hallmarking is not being done
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