Quiz-2

1. Which of the following pair of WQ parameters is not under Scope of recognition (mandatory) of sub-district laboratories?

• a. Total Iron and Chloride

• b. Total Arsenic and Total Hardness

• c. Chloride and Total Hardness

• d. Total Arsenic and Total Iron

2. What is full form of CRM

• a. Certified Reference Manual

• b. Certificate Reference Material

• c. Certified Referendum Material

• d. Certified Reference Material

3. The laboratory shall procure Certified Reference Materials based on the method to be used for analysis of water quality parameter as mentioned in scope of __________________

• a. accreditation only

• b. recognition only

• c. both recognition and accreditation

• d. none of the above

4. What is Hydrometer used for?

• a. To measure atmospheric pressure

• b. To measure humidity and atmospheric pressure

• c. To measure volume of the liquid

• d. To measure relative density of the liquid

5. Nessler’s Tubes is used in the detection of _____

• a. Colour

• b. Taste

• c. Odour

• d. Total Hardness

6. Which of the following statement is true?

• a. Filter paper no. 542 is required for Total Dissolved Solids

• b. Filter paper no. 535 is required for Total Hardness

• c. Filter paper no. 544 is required for Total Dissolved Solids

• d. Filter paper no. 540 is required for Total Dissolved Solids

7. Chemical required for Total Alkalinity is-

• a. ETDA- disodium salt

• b. ETDA- monosodium salt

• c. EDTA- disodium salt

• d. EDTA- trisodium salt

8. If there are more than one instrument/ equipment of the same type, then how should the numbering be done?

• a. The numbering should be done in arithmetic progression

• b. The numbering should be done serially

• c. The numbering should be done in geometric progression

• d. The numbering should be done serially and then in arithmetic progression

9. The Unique ID of Calibration Registers of instrument/ equipment should be in the following manner:

• a. Lab Code/ Short form of Document Name/Serial No. of Document

• b. Instrument ID/ Short form of Document Name/Serial No. of Document

• c. Lab Code/ Short form of Register Name/Serial No. of Register

• d. Instrument ID/ Long form of Document name/ Serial No. of Document

10. Why must laboratory give unique identification numbers to each of its equipment and instruments?

• a. To maintain unambiguous identification

• b. To maintain ambiguous identification.

• c. To maintain vague identification.

• d. To maintain uncertain identification.