Jigitsha - Set 11
A revision for earlier modules before starting off a new session ! Best of Luck and Happy Learning !
Questions and Answers
- 1.
The automatic temperature compensation (ATC) in a pH meter corrects for the change in mV per pH unit generated by the glass electrode as defined by the
- A.
A) Henry's law
- B.
B) Nernst equation
- C.
C) Charles's law
- D.
D) None of the above
Correct Answer
B. B) Nernst equationExplanation
The Nernst equation describes the relationship between the electrode potential and the concentration of ions in a solution. In the case of a pH meter, the glass electrode generates a voltage (in mV) that is proportional to the pH of the solution being measured. However, this voltage can be affected by changes in temperature. The automatic temperature compensation (ATC) feature in the pH meter uses the Nernst equation to correct for this temperature dependency, ensuring accurate pH measurements regardless of temperature variations. Therefore, option b) Nernst equation is the correct answer.Rate this question:
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- 2.
A ___________________ is used to remove the carbon dioxide created after cation exchange when the water contains a significant concentration of bicarbonate.
- A.
A) Cation Tower
- B.
B) Anion Tower
- C.
C) Degassifier
- D.
D) MB Tower
Correct Answer
C. C) DegassifierExplanation
A degassifier is used to remove the carbon dioxide created after cation exchange when the water contains a significant concentration of bicarbonate. This is because bicarbonate can react with cations during the exchange process, resulting in the formation of carbon dioxide. The degassifier helps to remove this carbon dioxide from the water, ensuring that it is free from impurities and suitable for further use.Rate this question:
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- 3.
Which type of fire extinguisher can be use to extinguish fires of A, B, C, D and E types?
- A.
A) Foam type
- B.
B) Dry Powder type
- C.
C) Wet chemical type
- D.
D) CO2 extiguishers
Correct Answer
B. B) Dry Powder typeExplanation
Dry Powder type fire extinguishers are suitable for extinguishing fires of A, B, C, D, and E types. This type of extinguisher contains a fine powder that can put out fires caused by flammable solids (A), flammable liquids (B), flammable gases (C), flammable metals (D), and electrical fires (E). Dry powder fire extinguishers work by smothering the fire and interrupting the chemical reaction that sustains it. They are versatile and effective in a wide range of fire situations, making them a suitable choice for extinguishing fires of multiple types.Rate this question:
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- 4.
Typically, activated carbons used in water treatment have iodine numbers ranging from
- A.
A) > 1500
- B.
B) 200 to 500
- C.
C) 600 to 1100
- D.
D) None of the above
Correct Answer
C. C) 600 to 1100Explanation
Activated carbons used in water treatment typically have iodine numbers ranging from 600 to 1100. The iodine number is a measure of the adsorption capacity of the activated carbon, specifically its ability to adsorb iodine. A higher iodine number indicates a higher adsorption capacity, which is desirable for water treatment applications. Therefore, the range of 600 to 1100 is the most appropriate for activated carbons used in water treatment.Rate this question:
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- 5.
Ion Exchange Resins are generally insoluble polymeric materials manufactured using suspension polymerisation using __________________________ that carry ion exchangeable functional groups.
- A.
A) Benzene and Styrene
- B.
B) Styrene and Divinylbenzene
- C.
C) Saccharin and Styrene
- D.
D) None of the above
Correct Answer
B. B) Styrene and DivinylbenzeneExplanation
Ion Exchange Resins are generally insoluble polymeric materials manufactured using suspension polymerization using Styrene and Divinylbenzene. These two chemicals are used as monomers in the polymerization process to create the polymeric structure of the resin. The resulting resin contains ion exchangeable functional groups, which allow it to selectively exchange ions with the surrounding solution. Benzene and Saccharin are not used in the manufacture of ion exchange resins, making options a) and c) incorrect. Therefore, the correct answer is b) Styrene and Divinylbenzene.Rate this question:
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- 6.
Due to electrical short circuit, the electical panel got heated up and fire broke out. To extinguish the fire, you will have to use -
- A.
A) Water based fire extinguishers
- B.
B) Foam based fire extinguishers
- C.
C) Wet chemical based fire extinguishers
- D.
D) CO2 or Dry powder based fire extinguishers
Correct Answer
D. D) CO2 or Dry powder based fire extinguishersExplanation
In the given scenario where an electrical panel has caught fire due to a short circuit, using water-based fire extinguishers or foam-based fire extinguishers would not be recommended. Water conducts electricity and can potentially worsen the situation or cause electrocution. Foam-based extinguishers are also not suitable for electrical fires as they may not effectively extinguish the fire and can cause further damage. Wet chemical-based fire extinguishers are primarily used for kitchen fires involving oil and grease. Therefore, the most appropriate option in this case would be CO2 or dry powder-based fire extinguishers, as they are specifically designed to extinguish electrical fires by removing the oxygen or smothering the flames.Rate this question:
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- 7.
The term 'whisky' means
- A.
A) Water of love
- B.
B) Water of luck
- C.
C) Water of life
- D.
D) None of the above
Correct Answer
C. C) Water of lifeExplanation
The term 'whisky' is derived from the Scottish Gaelic word "uisge beatha," which translates to "water of life." This term refers to the alcoholic beverage made from fermented grain mash, typically aged in wooden casks. Whisky has been enjoyed for centuries and is often associated with celebration and relaxation. Therefore, the term "water of life" accurately describes the significance and cultural importance of whisky.Rate this question:
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- 8.
The pH of Demineralised water used for blending should be in the range of (as per ABD Manual)
- A.
A) 5.5 - 6.5
- B.
B) 5.9 - 6.5
- C.
C) 6.0 - 6.5
- D.
D) 5.9 - 6.4
Correct Answer
D. D) 5.9 - 6.4Explanation
The pH of demineralized water used for blending should be in the range of 5.9 - 6.4 according to the ABD Manual. This range ensures that the water is slightly acidic, which is important for maintaining the stability and effectiveness of the blended solution. If the pH is too high or too low, it can affect the chemical reactions and properties of the blend, potentially leading to undesirable outcomes. Therefore, it is crucial to adhere to the specified pH range to ensure the quality and consistency of the blended product.Rate this question:
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- 9.
PRT refers to -
- A.
A) Permanganate Residence Time
- B.
B) Permanganate reaction Time
- C.
C) Potassium reaction time
- D.
D) Potassium reaction test
Correct Answer
B. B) Permanganate reaction TimeExplanation
PRT stands for Permanganate reaction Time. Permanganate is a strong oxidizing agent commonly used in chemical reactions. PRT refers to the amount of time it takes for a permanganate reaction to occur. This could be the time it takes for permanganate to react with another substance or the time it takes for a reaction involving permanganate to reach completion.Rate this question:
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- 10.
For PRT analysis, place ______ml of the material in the cylinder, bring the temperature to _____°C by placing the cylinder in cold water, add _____ml of standard permanganate solution by means of a 1-ml pipette noting down the exact time as soon as addition is over. Mix the contents at once and keep the cylinder at 15 to 16°C and away from bright light. The material shall be taken to have satisfied the test if the pink colour does not disappear up to _____min.
- A.
A) 10, 20, 0.5, 15
- B.
B) 20, 15, 1, 30
- C.
C) 20, 15, 0.5, 30
- D.
D) 10, 15, 1, 30
Correct Answer
B. B) 20, 15, 1, 30Explanation
To perform the PRT analysis, we need to follow certain steps. Firstly, we need to place 20ml of the material in the cylinder. Then, we need to bring the temperature of the material to 15°C by placing the cylinder in cold water. After that, we need to add 1ml of standard permanganate solution using a 1-ml pipette, noting down the exact time as soon as the addition is over. The contents should be mixed immediately and the cylinder should be kept at 15 to 16°C away from bright light. The material will be considered to have passed the test if the pink color does not disappear for up to 30 minutes. Therefore, the correct answer is b) 20, 15, 1, 30.Rate this question:
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- 11.
Type of Caramel used for blending
- A.
A) Type I
- B.
B) Type II
- C.
C) Type III
- D.
D) Type IV
Correct Answer
A. A) Type IExplanation
The correct answer is Type I because it is the specific type of caramel that is used for blending. The other types (II, III, and IV) may have different properties or uses that make them unsuitable for blending.Rate this question:
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- 12.
In DM plant, Cation is recharged using __________________where as Anion is recharged using _________________ (in sequence)
- A.
A) Caustic, Hydrochloric Acid
- B.
B) Acid, Alkali
- C.
C) Water, Acid
- D.
D) Alcohol, Water
Correct Answer
B. B) Acid, AlkaliExplanation
In a DM plant, cation is recharged using acid, while anion is recharged using alkali. This is because cation exchange resins are regenerated using acid, which helps to remove the cations from the resin and restore its ion exchange capacity. On the other hand, anion exchange resins are regenerated using alkali, which helps to remove the anions from the resin and restore its ion exchange capacity. Therefore, option b) Acid, Alkali is the correct answer.Rate this question:
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- 13.
In Cation exchange unit, if the pH of water is more than ___________, it means that the plant is exhausted and recharging is required immediately. If pH is less than ____________, it means rinsing is not done properly and proper rinsing is required till the required pH is obtained.
- A.
A) 4,5, 3.5
- B.
B) 5.5, 2.5
- C.
C) 6.5, 3.5
- D.
D) 4.5, 2.5
Correct Answer
A. A) 4,5, 3.5Explanation
If the pH of water in a cation exchange unit is more than 4, it means that the plant is exhausted and recharging is required immediately. If the pH is less than 5, it means that rinsing is not done properly and proper rinsing is required until the required pH of 3.5 is obtained.Rate this question:
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- 14.
The purpose of using PVC/ Polypropylene pall rings inside the degasser column is to
- A.
A) Remove any off flavours in water
- B.
B) The packing breaks up the water flowing down creating greater surface area
- C.
C) Absorbs the Carbon di oxide gas present in water
- D.
D) To maintain the pH of the water
Correct Answer
B. B) The packing breaks up the water flowing down creating greater surface areaExplanation
The use of PVC/ Polypropylene pall rings inside the degasser column is to break up the water flowing down, which creates a greater surface area. This increased surface area allows for more efficient gas-liquid contact, facilitating the removal of dissolved gases from the water. By breaking up the water flow, the pall rings enhance the degassing process and improve the overall efficiency of the degasser column.Rate this question:
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- 15.
When Silver nitrate solution is added into raw water, it creates a white precipitate, which is actually
- A.
A) Silver Chloride
- B.
B) Silver Sulphite
- C.
C) Calcium nitrate
- D.
D) Magnesium chloride
Correct Answer
A. A) Silver ChlorideExplanation
When silver nitrate solution is added to raw water, it reacts with chloride ions present in the water to form a white precipitate. This precipitate is identified as silver chloride.Rate this question:
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- 16.
Curing of PVC pipes is done using -
- A.
A) 1% Hydrochloric acid solution with 0.5% Sodium thiosulphate solution
- B.
B) 2.5% NaOH solution and 1% Sodium Chloride solution
- C.
C) Alcohol 70% v/v
- D.
D) Water with 5% Potassium permanganate
Correct Answer
B. B) 2.5% NaOH solution and 1% Sodium Chloride solution -
- 17.
The full form of ROPP is
- A.
A) Ride On Pilfer Proof
- B.
B) Roll On Pilfer Proof
- C.
C) Right On Pilfer Proof
- D.
D) Rolling On Pilfer Proof
Correct Answer
B. B) Roll On Pilfer ProofExplanation
ROPP stands for Roll On Pilfer Proof. This term is commonly used in the packaging industry to describe a type of closure or cap that is used to seal bottles or containers. The "roll on" refers to the method of applying the closure, where it is rolled onto the neck of the bottle, ensuring a secure and tamper-proof seal. The term "pilfer-proof" indicates that the closure is designed to prevent theft or tampering of the contents of the bottle. Therefore, option b) is the correct answer.Rate this question:
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- 18.
The full form of BOPP is
- A.
A) Biaxially Oriented Poly Propylene
- B.
B) Bi auxiliary Ornamented Poly Propylene
- C.
C) By acidentally Oriented Poly Propylene
- D.
D) None of the above
Correct Answer
A. A) Biaxially Oriented Poly PropyleneExplanation
BOPP stands for Biaxially Oriented Poly Propylene. This means that the polypropylene film has been stretched in both the machine direction and the transverse direction, resulting in improved strength, clarity, and flexibility. The other options, "Bi auxiliary Ornamented Poly Propylene" and "By accidentally Oriented Poly Propylene," do not make sense and are not the correct full form for BOPP. Therefore, the correct answer is a) Biaxially Oriented Poly Propylene.Rate this question:
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- 19.
For calibration of turbidity meter, a solution is used at various proportions, which is called Formazin solution. It is actually a combination of two chemicals, which are -
- A.
A) hydrazine sulfate and hexamethylene tetramine
- B.
B) Hydrazium sulfate and hexane
- C.
C) Hydrogen peroxide and hexamethylene tetramine
- D.
D) None of the above
Correct Answer
A. A) hydrazine sulfate and hexamethylene tetramineExplanation
Formazin solution, used for calibration of turbidity meters, is a combination of hydrazine sulfate and hexamethylene tetramine. This solution is commonly used because it produces stable and consistent turbidity levels, making it suitable for calibration purposes. Other options mentioned in the question, such as hydrazium sulfate and hexane or hydrogen peroxide and hexamethylene tetramine, are not the correct combination of chemicals for formazin solution used in turbidity meter calibration.Rate this question:
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- 20.
Grain direction of labels should be -
- A.
A) Perpendicular to the the width of label
- B.
B) Parallel to the width of label
- C.
C) Parallel to the height of label
- D.
D) None of the above
Correct Answer
B. B) Parallel to the width of labelExplanation
The grain direction of labels should be parallel to the width of the label. This is because the grain direction refers to the direction in which the fibers of the material used for the label are aligned. Having the grain direction parallel to the width of the label ensures that the label is more flexible and less likely to tear or warp. It also allows for easier application and adherence to surfaces.Rate this question:
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- 21.
PET stands for -
- A.
A) Poly prolylene terepthalete
- B.
B) Poly ethylene tetrapolate
- C.
C) Poly ethylene terephthalate
- D.
D) None of the above
Correct Answer
C. C) Poly ethylene terephthalateExplanation
PET stands for Poly ethylene terephthalate. It is a type of plastic that is commonly used for making bottles and containers for food and beverages. PET is known for its lightweight, durability, and ability to be recycled. It is a popular choice for packaging due to its transparency, which allows consumers to see the product inside. Additionally, PET is resistant to moisture and has good barrier properties, making it suitable for preserving the freshness of the contents.Rate this question:
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- 22.
The hardness of water is mainly due to the presence of salts of -
- A.
A) Sodium and Potassium
- B.
B) Sodium and Magnesium
- C.
C) Calcium and Magnesium
- D.
D) None of the above
Correct Answer
C. C) Calcium and MagnesiumExplanation
The hardness of water is mainly due to the presence of calcium and magnesium salts. These salts dissolve in water and form ions, which can interfere with the lathering of soap and cause scale buildup in pipes and appliances. Sodium and potassium salts do not contribute significantly to water hardness. Therefore, option c) calcium and magnesium is the correct answer.Rate this question:
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- 23.
The full form of FSSAI is
- A.
A) Food Safety and Standards Act, India
- B.
B) Food Safety and Standards Act of India
- C.
C) Food Safety Act and Standards Authority, India
- D.
D) Food Safety and Standards Authority of India
Correct Answer
D. D) Food Safety and Standards Authority of IndiaExplanation
The correct answer is d) Food Safety and Standards Authority of India. The FSSAI is a regulatory body in India responsible for overseeing and ensuring the safety and quality of food products. It sets standards for food products and regulates their manufacture, storage, distribution, sale, and import. The full form of FSSAI reflects its role as an authority that establishes and enforces food safety and standards in India.Rate this question:
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- 24.
In FSSAI License Numbers, the total no of digits is -
- A.
A) 12
- B.
B) 13
- C.
C) 16
- D.
D) 14
Correct Answer
D. D) 14Explanation
FSSAI License Numbers consist of 14 digits. This is the correct answer as it directly states the number of digits in the license number.Rate this question:
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- 25.
Passivation is
- A.
A) a post fabricated cleaning and corrosion resistance enhancement processes.
- B.
B) a process to clean the metallic and inorganic contaminants from the stainless steel surface
- C.
C) a process which helps in formation of thin transparent oxide layer that protects the stainless steel from selective oxidation (corrosion)
- D.
D) All of the above
Correct Answer
D. D) All of the aboveExplanation
Passivation is a process that involves post-fabrication cleaning and corrosion resistance enhancement for stainless steel surfaces. It helps in removing metallic and inorganic contaminants from the surface and also aids in the formation of a thin transparent oxide layer. This oxide layer acts as a protective barrier, preventing selective oxidation (corrosion) of the stainless steel. Therefore, all of the given options are correct explanations of passivation.Rate this question:
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- 26.
As per ABD SOP, each Litre of Passivation chemical consists of
- A.
A) 530ml of de ionized water, 400ml of 80%phosphoric acid, 50ml of concentrated hydrochloric acid and 20ml liquid detergent
- B.
B) 500ml of de ionized water, 430ml of 80%phosphoric acid, 25ml of concentrated hydrochloric acid and 20ml liquid detergent
- C.
C) 400ml of de ionized water, 500ml of 80%phosphoric acid, 80 ml of concentrated hydrochloric acid and 20ml liquid detergent
- D.
D) None of the above
Correct Answer
A. A) 530ml of de ionized water, 400ml of 80%phosphoric acid, 50ml of concentrated hydrochloric acid and 20ml liquid detergentExplanation
The correct answer is a) 530ml of de ionized water, 400ml of 80% phosphoric acid, 50ml of concentrated hydrochloric acid, and 20ml liquid detergent. This is because the given answer matches the composition of the Passivation chemical as per the ABD SOP. The other options do not have the same quantities of the required ingredients.Rate this question:
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- 27.
Free Iron Test may be conducted before/after passivation to determine the effectiveness of the treatment. The process is as follows - 1.To 90ml deionized water add 3ml of Concentrated Nitric acid and mix, then add 5 grams of Potassium ferrocynide (K4Fe(CN)6). 2. Apply this solution to the surface to be tested. 3. If ______________ colour develops within 30sec,free iron is present and the passivation is not complete. 4. The iron test solution may be removed by wiping with a rag soaked in dilute ammonia water.
- A.
A) Red
- B.
B) Green
- C.
C) Blue
- D.
D) White
Correct Answer
C. C) BlueExplanation
If a blue color develops within 30 seconds after applying the solution to the surface, it indicates the presence of free iron and suggests that the passivation treatment is not complete. The blue color is a result of a reaction between the potassium ferrocyanide in the solution and the free iron on the surface. This indicates that the passivation process did not effectively remove all the free iron, which can lead to corrosion and reduced effectiveness of the treatment.Rate this question:
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- 28.
Where iron content in raw water is more than acceptable limits, Iron Removal Filters are installed which contains a special media for removal of iron. The media is composed of -
- A.
A) Magnesium di-oxide
- B.
B) Mercuric di-oxide
- C.
C) Manganese oxide
- D.
D) Manganese di-oxide
Correct Answer
D. D) Manganese di-oxideExplanation
Manganese dioxide is used in iron removal filters because it has the ability to oxidize iron. When water containing iron passes through the filter, the manganese dioxide oxidizes the dissolved iron, converting it into insoluble particles. These particles can then be easily filtered out, resulting in the removal of iron from the water. Magnesium di-oxide and mercuric di-oxide are not commonly used for this purpose, while manganese oxide does not have the same oxidation properties as manganese dioxide.Rate this question:
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- 29.
The operating pressure range for Module/ Sparkler filter is
- A.
A) 0 - 3.8 kg/ sq cm
- B.
B) 1 - 5 kg/ sq cm
- C.
C) 0 - 2 kg/ sq cm
- D.
D) None of the above
Correct Answer
A. A) 0 - 3.8 kg/ sq cmExplanation
The correct answer is a) 0 - 3.8 kg/ sq cm. This means that the operating pressure range for the Module/Sparkler filter is between 0 and 3.8 kilograms per square centimeter. This range indicates the acceptable pressure levels at which the filter can effectively function without any issues or damage.Rate this question:
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- 30.
As per ABD guidelines, the water Jet pressure in a bottle rinser should be in the range of
- A.
A) 1.0 kg/cm2 to 1.5 kg/cm2
- B.
B) 0.5 kg/ cm2 to 1.0 kg/cm2
- C.
C) > 2.5 kg/cm2
- D.
D) None of the above
Correct Answer
A. A) 1.0 kg/cm2 to 1.5 kg/cm2Explanation
The correct answer is a) 1.0 kg/cm2 to 1.5 kg/cm2. This range of water jet pressure is recommended by the ABD guidelines for a bottle rinser. It ensures that the bottles are effectively cleaned without causing any damage or breakage. Pressure below 1.0 kg/cm2 may not provide sufficient cleaning power, while pressure above 1.5 kg/cm2 may be too high and can potentially damage the bottles. Therefore, maintaining the water jet pressure within this range is crucial for optimal bottle rinsing.Rate this question:
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- 31.
Turbidity is measured in NTUs. The full form of NTU is -
- A.
A) Nymphelic Turbidity Unit
- B.
B) Nephelometric Turbidity Unit
- C.
C) Numeric Turbidity Unit
- D.
D) Nephelocentric Turbidity Unit
Correct Answer
B. B) Nephelometric Turbidity UnitExplanation
The correct answer is b) Nephelometric Turbidity Unit. Turbidity is the measure of the cloudiness or haziness of a liquid caused by suspended particles. NTU stands for Nephelometric Turbidity Unit, which is a unit of measurement used to quantify turbidity. Nephelometric refers to the method used to measure turbidity, which involves measuring the amount of light scattered by the particles in the liquid. Therefore, option b) is the correct full form of NTU.Rate this question:
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- 32.
To pass the Strechability test in BOPP Tape, the tape should at least show stretching upto __________before breaking.
- A.
A) 25%
- B.
B) 50%
- C.
C) 10%
- D.
D) 30%
Correct Answer
D. D) 30%Explanation
To pass the Stretchability test in BOPP Tape, the tape should be able to stretch up to 30% before breaking. This means that the tape needs to have a certain level of flexibility and elasticity to withstand stretching without tearing or breaking. Stretchability is an important characteristic for BOPP Tape as it allows for easier application and ensures that the tape can securely hold objects together without snapping under tension.Rate this question:
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- 33.
As per ABD Specification for Grain based Neutral Spirit, PRT should be -
- A.
A) greater than or equal to 45 mins
- B.
B) greater than or equal to 15 mins
- C.
C) greater than or equal to 30 mins
- D.
D) greater than or equal to 48 mins
Correct Answer
D. D) greater than or equal to 48 minsExplanation
According to the ABD Specification for Grain based Neutral Spirit, the PRT (Potable Residue Test) should be greater than or equal to 48 minutes. This means that the spirit should have a minimum residue time of 48 minutes during the distillation process. This requirement ensures that the spirit is properly purified and free from impurities, resulting in a high-quality product.Rate this question:
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- 34.
Barcodes mentioned on every product should comply with
- A.
A) GS1 standards
- B.
B) ISO22000: 2005 Standards
- C.
C) IS10500:2012 Standards
- D.
D) Indian Barcode Confideration Standards
Correct Answer
A. A) GS1 standardsExplanation
The correct answer is a) GS1 standards. GS1 is a global standards organization that develops and maintains standards for barcodes, among other things. Their standards ensure that barcodes are unique, accurate, and readable by scanners worldwide. Complying with GS1 standards allows for efficient and accurate product identification, inventory management, and supply chain operations.Rate this question:
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- 35.
The dry goods sampling plan of ABD has been designed as per
- A.
A) US Naval Standard
- B.
B) Military Standard 105A
- C.
C) Military Standard 105E
- D.
D) None of the above
Correct Answer
C. C) Military Standard 105EExplanation
The correct answer is c) Military Standard 105E. This standard is used for sampling plans in various industries, including the military. It provides guidelines for determining the number of samples to be taken and the acceptance criteria for quality control purposes. By following this standard, ABD ensures that their dry goods sampling plan is in line with industry best practices and helps maintain consistent quality in their products.Rate this question:
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- 36.
Max. pressure difference allowed between filter inlet and filter outlet in a sparkler filter during filtration is
- A.
A) 1.5 Kg/ cm2
- B.
B) 3 Kg/ cm2
- C.
C) 4 Kg/ cm2
- D.
D) None of the above
Correct Answer
A. A) 1.5 Kg/ cm2Explanation
The maximum pressure difference allowed between the filter inlet and outlet in a sparkler filter during filtration is 1.5 Kg/cm2. This means that the pressure drop across the filter should not exceed 1.5 Kg/cm2. Exceeding this limit could result in damage to the filter or a decrease in filtration efficiency. It is important to monitor and control the pressure difference to ensure proper operation of the sparkler filter.Rate this question:
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- 37.
During filtration, filter sheets should be fixed inside the assembly so that -
- A.
A) The smooth/ matt finish side, marked with the company logo, type etc. is the filtrate side and has to face the filtrate plate.
- B.
B) Rough and uneven side to be on the top side.
- C.
C) Both sides are same and can be used any where
- D.
D) Both a) and b) are important
Correct Answer
D. D) Both a) and b) are importantExplanation
During filtration, it is important to fix the filter sheets inside the assembly in a specific way. The smooth/matt finish side, marked with the company logo, type, etc., should be the filtrate side and should face the filtrate plate. Additionally, the rough and uneven side should be on the top side. Both of these factors are important in ensuring effective filtration.Rate this question:
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- 38.
The conductivity in water is due to the presence of
- A.
A) Organic matters available in water
- B.
B) Inorganic salts available in water
- C.
C) Microbes available in water
- D.
D) None of the above
Correct Answer
B. B) Inorganic salts available in waterExplanation
The correct answer is b) Inorganic salts available in water. Conductivity in water is primarily due to the presence of inorganic salts, such as dissolved minerals and ions. These salts dissociate into charged particles (ions) in water, allowing the flow of electric current. Organic matters and microbes do not contribute significantly to the conductivity of water.Rate this question:
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- 39.
The word ISO means
- A.
A) International Organization for Standardisation
- B.
B) International Standards Organization
- C.
C) Internal Standards and Organization
- D.
D) None of the above
Correct Answer
A. A) International Organization for StandardisationExplanation
ISO stands for International Organization for Standardization. It is a non-governmental organization that develops and publishes international standards. These standards ensure that products, services, and systems are safe, reliable, and of good quality. ISO collaborates with national standardization bodies from different countries to create these standards. Therefore, option a) International Organization for Standardization is the correct answer.Rate this question:
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- 40.
Apart from Black as a bar code colour, the following colours can also be used against white back ground
- A.
A) Blue, Green and Dark Brown
- B.
B) Blue, Red and Orange
- C.
C) Blue, Yellow and Dark Brown
- D.
D) None of the above
Correct Answer
A. A) Blue, Green and Dark BrownExplanation
Blue, Green, and Dark Brown can be used as bar code colors against a white background. These colors provide enough contrast with white to ensure that the bar code is easily scannable. Red and Orange (option b) may not provide enough contrast, and Yellow (option c) may also not be easily distinguishable from white. Therefore, the correct answer is a) Blue, Green, and Dark Brown.Rate this question:
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- 41.
In Barcode 890 1544 01804 4,
- A.
A) 890 is Product Code, 1544 is Manufacturer Code, 01804 is Country Code and 4 is Check digit
- B.
B) 890 is Check digit, 1544 is Country Code, 01804 is Manufacturer code and 4 is Product Code
- C.
C) 890 is Country Code, 1544 is Manufacturer Code, 01804 is Product Code and 4 is Check digit
- D.
D) None of the above
Correct Answer
C. C) 890 is Country Code, 1544 is Manufacturer Code, 01804 is Product Code and 4 is Check digitExplanation
The correct answer is c) 890 is Country Code, 1544 is Manufacturer Code, 01804 is Product Code and 4 is Check digit. This is because in a barcode, the first three digits represent the country code, the next four digits represent the manufacturer code, the following five digits represent the product code, and the last digit is the check digit.Rate this question:
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- 42.
As per Authority Matrix, the maximum % defect allowed for Market bottles is
- A.
A) 3.5%
- B.
B) 3.0%
- C.
C) 4.0%
- D.
D) 4.5%
Correct Answer
A. A) 3.5%Explanation
According to the Authority Matrix, the maximum allowed percentage of defects for Market bottles is 3.5%. This means that if the percentage of defects in Market bottles exceeds 3.5%, it would be considered unacceptable. This limit ensures that the quality of the Market bottles is maintained within acceptable standards.Rate this question:
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- 43.
In a Bar code, if Country Code is 890, Manufacturer Code is 1544 and Product Code is 02502, then the check digit would be
- A.
A) 3
- B.
B) 8
- C.
C) 1
- D.
D) 2
Correct Answer
D. D) 2Explanation
The check digit in a barcode is used to ensure the accuracy of the barcode. It is calculated based on the other digits in the barcode. In this case, the country code is 890, the manufacturer code is 1544, and the product code is 02502. To calculate the check digit, the digits of the barcode are multiplied by alternating weights (3 and 1) and then summed. The check digit is the smallest number that, when added to the sum, results in a multiple of 10. In this case, the sum of the weighted digits is 8+9+4+4+0+1+0+5+0+2 = 33. The smallest number that, when added to 33, results in a multiple of 10 is 2. Therefore, the check digit would be 2.Rate this question:
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- 44.
As per FSSAI, all process waters (Raw water and DM water) must be checked against the standard requirements as mentioned in
- A.
A) IS 10800: 2012
- B.
B) IS 10500: 2010
- C.
C) IS 10500: 2012
- D.
D) None of the above
Correct Answer
C. C) IS 10500: 2012 -
- 45.
IS/ ISO 22000: 2005 refers to
- A.
A) Specifications of Corrugated boards
- B.
B) Food Safety Management System
- C.
C) Specifications of adhesives
- D.
D) None of the above
Correct Answer
B. B) Food Safety Management SystemExplanation
ISO 22000:2005 refers to the Food Safety Management System. This standard provides guidelines and requirements for organizations in the food industry to ensure the safety of their products. It focuses on identifying and controlling potential food safety hazards, implementing effective communication and management systems, and continuously improving the overall food safety performance. ISO 22000:2005 is applicable to all organizations, regardless of their size or position in the food chain, and helps them demonstrate their commitment to producing safe and high-quality food products.Rate this question:
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- 46.
Roll-on pilfer-proof closures (ROPP seals) shall be manufactured form aluminium sheet conforming to grades of
- A.
A) Only 31000 of IS: 737
- B.
B) 40800 or 31000 of IS : 737 in annealed condition
- C.
C) Only 40800 of IS: 737
- D.
D) None of the above
Correct Answer
B. B) 40800 or 31000 of IS : 737 in annealed conditionExplanation
Roll-on pilfer-proof closures (ROPP seals) shall be manufactured from aluminium sheet conforming to grades 40800 or 31000 of IS: 737 in annealed condition. This means that the closures should be made from aluminum sheets that meet the specifications of either grade 40800 or grade 31000 of IS: 737. Additionally, the aluminum sheets should be in an annealed condition, which refers to a heat treatment process that improves the metal's properties. This requirement ensures that the ROPP seals are made from suitable materials that meet the necessary standards for quality and performance.Rate this question:
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- 47.
IS : 8393 - 1997 is the standard for
- A.
A) Plastic closures
- B.
B) ROPP Caps
- C.
C) Glass Bottles
- D.
D) Labels used in liquor industry
Correct Answer
B. B) ROPP CapsExplanation
IS : 8393 - 1997 is the standard for ROPP Caps. This means that the standard specification and requirements for ROPP (Roll-On Pilfer-Proof) Caps are defined in this document. ROPP Caps are commonly used for sealing bottles and containers, especially in the beverage and pharmaceutical industries. The standard ensures that ROPP Caps meet certain quality and safety criteria, such as proper fit, tamper resistance, and ease of opening. Compliance with this standard ensures that ROPP Caps are reliable and suitable for their intended use.Rate this question:
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- 48.
The common name for EPE liner is wad. The full form of EPE is
- A.
A) Expended Poly Ethylene
- B.
B) Extended Poly Ethylene
- C.
C) Expanded Poly Ethylene
- D.
D) Extruded Poly Ethylene
Correct Answer
C. C) Expanded Poly EthyleneExplanation
The correct answer is c) Expanded Poly Ethylene. EPE stands for Expanded Poly Ethylene, which is a type of foam material that is commonly used as a liner or padding in packaging. It is known as a wad, which is a term used to describe a small piece of material that is used to seal or cushion a container. EPE liners are often used in bottle caps or closures to provide a tight seal and prevent leakage.Rate this question:
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- 49.
For Migration test of PVC pipes, the method followed for analysis is as per
- A.
A) IS 9256 - 1997
- B.
B) IS 9785 - 1990
- C.
C) IS 9845-1998
- D.
D) None of the above
Correct Answer
C. C) IS 9845-1998Explanation
The correct answer is c) IS 9845-1998. This standard, IS 9845-1998, specifies the method for analyzing the migration of substances from PVC pipes. It provides guidelines and procedures for conducting migration tests to determine the suitability of PVC pipes for use in various applications. The other options, IS 9256-1997 and IS 9785-1990, are not relevant to the analysis of migration in PVC pipes.Rate this question:
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- 50.
For a PVC pipe to be compliant to the standard requirements, it should show
- A.
A) Overall Migration with 50 % v/v ethyl alcohol @ 40 ⁰ C for 10 days - Aldehyde content < 60 mg/l (60 ppm)
- B.
B) Overall Migration with 100 % v/v ethyl alcohol @ 40 ⁰ C for 10 days, Aldehyde content < 60 mg/l (60 ppm)
- C.
C) Both a) and b)
- D.
D) None of the above
Correct Answer
C. C) Both a) and b)Explanation
The correct answer is c) Both a) and b). This means that for a PVC pipe to be compliant to the standard requirements, it should show overall migration with 50% v/v ethyl alcohol at 40 ⁰C for 10 days with aldehyde content less than 60 mg/l (60 ppm), as well as overall migration with 100% v/v ethyl alcohol at 40 ⁰C for 10 days with aldehyde content less than 60 mg/l (60 ppm). Both conditions must be met for the PVC pipe to be considered compliant.Rate this question:
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