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Recently added practice questions

6741. Permanent hardness of water can be removed by____________________?
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A. Passing it through cation & anion exchangers

B. All (A), B. and (C)

C. Simply boiling

D. Adding alum

6742. Permanent change in soil is due to__________________?
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A. pH change

B. Covalent bonding

C. Isomorphic substitution

D. Ionic bonding

6743. Peristalsis involves coordinated contraction and relaxation______________?
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A. Dorsal and ventral to food bolus

B. Lateral and medial to food bolus

C. Above and below the food bolus

D. None of the above

6744. Peripheral neuritis is a complication of_______________?
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A. Rifampicin

B. Isoniazid

C. Pirazinamide

D. Ethambutol

6745. Period of limitation prescribed in section 89, Cr.P.C. for filing application for release of attached property is _________ years from the date of attachment?
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A. 3 years

B. 2 years

C. 1 year

D. None of above

6746. Period from kidding/lambing to next oestrus is called ______________________?
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A. Calving interval

B. Service interval

C. Both a & b

D. None of above

6747. Period costs include which of the following?
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A. Selling expense

B. Raw material

C. Direct labor

D. Manufacturing overhead

6748. Periapical cyst is usually preceded by:__________?
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A. Periodontal abscess

B. Periapical abscess

C. Periapical granuloma

D. All of the above

6749. Perforated plate towers are unique for solvent extraction because, they provide_____________________?
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A. None of these

B. Repeated coalescence & redispersion of the drop phase

C. Higher contact area

D. Better contact of the phase

6750. Perfect hardness of any mineral is determined by___________________?
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A. None of the above

B. pH scale

C. Foot scale

D. Mhos scale
6751. Percentage saturation of a vapor bearing gas is always _____________ the relative saturation?
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A. Either A. or B.; depends on the system

B. Smaller than

C. Equal to

D. Higher than

6752. Percentage of water in brain cells is_______?
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A. 20%

B. 85%

C. 65%

D. 89%

6753. Percentage of the heavy water in ordinary water is around ____________________?
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A. 7.54

B. 0.71

C. 0.015

D. 32.97

6754. Percentage of proteins in cell membrane is____________?
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A. 40-50%

B. 80-100%

C. 20-40%

D. 60-80%
6755. Percentage of methane in coke oven gas may be around _____________________?
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A. 25

B. 50

C. 5

D. 15

6756. Percentage of glycerine present in the spent lye obtained during soap manufacture is about________________?
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A. 5

B. 35

C. 20

D. 0.5

6757. Percentage of drum submerged in the slurry in case of rotary drum filter is ________________?
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A. 25

B. 85

C. 30

D. 3

6758. Percentage of carbon monoxide in blast furnace gas may be around ____________________ ?
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A. 8

B. 22

C. 14

D. 52

6759. Percentage of bacterial load that can be removed from water by the process of plain sedimentation is about_______________?
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A. 10 to 25

B. 75

C. 50

D. 100

6760. Percentage elongation of a material is a measure of its _______________________?
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A. Malleability

B. Ductility

C. Brittleness

D. Toughness

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