The concentration of Total Dissolved Solids (TDS) in drinking water should not exceed (A) 500 mg/L (B) 400 mg/L (C) 300 mg/L (D) 200 mg/L

The concentration of Total Dissolved Solids (TDS) in drinking water should not exceed (A) 500 mg/L (B) 400 mg/L (C) 300 mg/L (D) 200 mg/L
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(A) 500 mg/L
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With regard to standard of quality of drinking water as laid down by Indian Railway , the requirement (desirable) limit of total dissolved solids should not be more than---------- mg/l a)200 b) 300 c) 400 d) 500*

Description : With regard to standard of quality of drinking water as laid down by Indian Railway , the requirement (desirable) limit of total dissolved solids should not be more than---------- mg/l a)200 b) 300 c) 400

Last Answer : d) 500*

If a 2% solution of sewage sample is incubated for 5 days at 20°C and the dissolved oxygen depletion was found to be 8 mg/l. The BOD of the sewage is A. 100 mg/l B. 200 mg/l C. 300 mg/l D. 400 mg/l

Description : If a 2% solution of sewage sample is incubated for 5 days at 20°C and the dissolved oxygen depletion was found to be 8 mg/l. The BOD of the sewage is A. 100 mg/l B. 200 mg/l C. 300 mg/l D. 400 mg/l

Last Answer : ANS: D

3.0 ml of raw sewage is diluted to 300 ml. The D.O. concentration of the diluted sample at the beginning of the test was 8 mg/l. After 5 dayincubation at 20°C, the D.O. concentration was 5 mg/l. The BOD of raw sewerage is A. 100 mg/l B. 200 mg/l C. 300 mg/l D. 400 mg/l

Description : 3.0 ml of raw sewage is diluted to 300 ml. The D.O. concentration of the diluted sample at the beginning of the test was 8 mg/l. After 5 dayincubation at 20°C, the D.O. concentration was 5 mg/l. The BOD of raw sewerage is A. 100 mg/l B. 200 mg/l C. 300 mg/l D. 400 mg/l

Last Answer : ANS: C

is the measure of whether a plant is now using more or less energy to manufacture its product than it did in the past. a) Total Dissolved Solids (TDS). c) Plant Energy Performance (PEP) b) Revolutions Per Minute (RPM) d) Option (a) and (b)

Description : is the measure of whether a plant is now using more or less energy to manufacture its product than it did in the past. a) Total Dissolved Solids (TDS). c) Plant Energy Performance (PEP) b) Revolutions Per Minute (RPM) d) Option (a) and (b)

Last Answer : Plant Energy Performance (PEP)

is the measure of whether a plant is now using more or less energy to manufacture its product than it did in the past. a) Total Dissolved Solids (TDS) b) Plant Energy Performance (PEP) c) Revolutions Per Minute (RPM) d) Option (a) and (b)

Description : is the measure of whether a plant is now using more or less energy to manufacture its product than it did in the past. a) Total Dissolved Solids (TDS) b) Plant Energy Performance (PEP) c) Revolutions Per Minute (RPM) d) Option (a) and (b)

Last Answer : Plant Energy Performance (PEP)

Anil played 8 cricket matches. The mean (average) of the runs was found to be 80. After playing four more matches, the mean of the runs of all the matches was found to be 70. The total runs made in the last four matches is (A) 400 (B) 300 (C) 200 (D) 100

Description : Anil played 8 cricket matches. The mean (average) of the runs was found to be 80. After playing four more matches, the mean of the runs of all the matches was found to be 70. The total runs made in the last four matches is (A) 400 (B) 300 (C) 200 (D) 100

Last Answer : Answer: C

Which of the following parameters is not used as a pollution indicator in water? (A) Total dissolved solids (B) Coliform count (C) Dissolved oxygen (D) Density

Description : Which of the following parameters is not used as a pollution indicator in water? (A) Total dissolved solids (B) Coliform count (C) Dissolved oxygen (D) Density

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Maximum permissible concentration of total hardness in drinking water is – (1) 50 (2) 100 (3) 200 (4) 500

Description : Maximum permissible concentration of total hardness in drinking water is – (1) 50 (2) 100 (3) 200 (4) 500

Last Answer : (3) 200 Explanation: Maximum permissible concentration of total hardness in drinking water in 200.

Maximum permissible concentration of total hardness in drinking water is (1) 50 (2) 100 (3) 200 (4) 500

Description : Maximum permissible concentration of total hardness in drinking water is (1) 50 (2) 100 (3) 200 (4) 500

Last Answer : 200

1000 kg of wet solids are to be dried from 60% to 20% moisture (by weight). The mass of moisture removed in kg is (A) 520 (B) 200(C) 400 (D) 500

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Last Answer : (C) 400

What is the resulting concentration (in molL) of aqueous hydrochloric acid if 500 mL of its gaseous form at 300 K and 100 kPa will be dissolved in 100 mL pure water Use 8.314 kPaL(Kmol)?

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Last Answer : Feel Free to Answer

Maximum permissible concentration of copper in drinking water in mg/L, is – (1) 0.01 (2) 0.05 (3) 1.0 (4) 2.0

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Last Answer : (3) 1.0 Explanation: The 1959 WHO International Standards for Drinking Water suggested that concentrations of copper greater than 1.5 mg/litre would markedly impair the potability of the water. However, ... 1.0 mg/litre was established for copper, based on its laundry and other staining properties.

Maximum permissible concentration of copper in drinking water in mg/L is - (1) 0.01 (2) 0.05 (3) 1.0 (4) 2.0

Description : Maximum permissible concentration of copper in drinking water in mg/L is - (1) 0.01 (2) 0.05 (3) 1.0 (4) 2.0

Last Answer : (3) 1.0 Explanation: In the first edition of the Guidelines for Drinking Water Quality, published in 1984, a guideline value of 1.0 mg/litre was established for copper, based on its laundry and other staining properties.

Maximum permissible concentration of copper in drinking water in mg/L is –

Description : Maximum permissible concentration of copper in drinking water in mg/L is –

Last Answer : 2.0

Maximum permissible concentration of copper in drinking water in mg/L is (1) 0.01 (2) 0.05 (3) 1.0 (4) 2.0

Description : Maximum permissible concentration of copper in drinking water in mg/L is (1) 0.01 (2) 0.05 (3) 1.0 (4) 2.0

Last Answer : 1.0

The normal concentration of chloride in mg/100 ml of whole blood is about (A) 200 (B) 250 (C) 400 (D) 450

Description : The normal concentration of chloride in mg/100 ml of whole blood is about (A) 200 (B) 250 (C) 400 (D) 450

Last Answer : Answer : B

In glycinuria daily urinary excretion of glycine ranges from (A) 100–200 mg (B) 300–500 mg (C) 600–1000 mg (D) 1100–1400 mg

Description : In glycinuria daily urinary excretion of glycine ranges from (A) 100–200 mg (B) 300–500 mg (C) 600–1000 mg (D) 1100–1400 mg

Last Answer : Answer : C

Minimum excretory urinary volume for waste products elimination during 24 hrs is (A) 200–300 ml (B) 200–400 ml (C) 500–600 ml (D) 800 ml

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Last Answer : Answer : C

Normal serum glucagons level in fasting state varies between (A) 0-–10 pg/ml (B) 20–100 pg/ml (C) 200–300 pg/ml (D) 400–500 pg/ml

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Last Answer : Answer : B

In glycoproteins the carbohydrate is in the form of disaccharide units, the number of units are (A) 50–100 (B) 200–300 (C) 400–500 (D) 600–700

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Last Answer : Answer : D

Amylose contains glucose units (A) 100–200 (B) 200–300 (C) 300–400 (D) 500–600

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Last Answer : C

The heart of a normal adult human being weighs about _____ A. 200 grams B. 300 grams C. 400 grams D. 500 grams

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: Force exerted on a person by atmosphere is A. 200 000 N B. 300 000 N C. 400 000 N D. 500 000 N

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Last Answer : 200 000 N

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Description : Number of meiotic divisions required to produce 200/400 seeds of pea would be (a) 200/400 (b) 400/800 (c) 300/600 (d) 250/500

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The resistivity of a material with resistance 200 ohm, length 10m and area twice that of the length is a) 200 b) 300 c) 400 d) 500

Description : The resistivity of a material with resistance 200 ohm, length 10m and area twice that of the length is a) 200 b) 300 c) 400 d) 500

Last Answer : c) 400

A high temperature waste heat recovery unit consists of recovering waste heat at temperaturesgreater than _______. a) 200 °C b) 500 °C c) 300 °C d) 400 °C

Description : A high temperature waste heat recovery unit consists of recovering waste heat at temperaturesgreater than _______. a) 200 °C b) 500 °C c) 300 °C d) 400 °C

Last Answer : 400 °C

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Last Answer :  (b) 500

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Last Answer : Answer : D

The normal serum of concentration of copper in mg/100 ml varies between (A) 0–5 (B) 50–100 (C) 100–200 (D) 200–300

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Last Answer : Answer : C

A small dairy farm daily produces 100 kilograms of average quality buffalo milk and sells it to an organised dairy at the rate of Rs. 100 per kilogram of total solids contained in the milk. How much would be the daily gross income of the farm from the sale of milk ? (A) Between Rs. 2,000 and Rs. 2,200 (B) Between Rs. 1,250 and Rs. 1,400 (C) Between Rs. 700 and Rs. 825 (D) Between Rs. 1,000 and Rs. 1,100 (E) Between Rs. 1,650 and Rs. 1,850

Description : A small dairy farm daily produces 100 kilograms of average quality buffalo milk and sells it to an organised dairy at the rate of Rs. 100 per kilogram of total solids contained in the milk. How much would be the daily gross ... (D) Between Rs. 1,000 and Rs. 1,100 (E) Between Rs. 1,650 and Rs. 1,850

Last Answer : (B) Between Rs. 1,250 and Rs. 1,400

It is required to maintain a therapeutic concentration of 10 microgram/mL for 12 hours of a drug having half life of 1.386 hr and Vd of 5 L. The dose required in a sustained release product will be (A) 600 mg (B) 300 mg (C) 30 mg (D) 60 mg

Description : It is required to maintain a therapeutic concentration of 10 microgram/mL for 12 hours of a drug having half life of 1.386 hr and Vd of 5 L. The dose required in a sustained release product will be (A) 600 mg (B) 300 mg (C) 30 mg (D) 60 mg

Last Answer : (B) 300 mg

The Volume of distribution of a drug administered at a dose of 300 mg and exhibiting 30 microgram/mL instantaneous concentration in plasma shall be (A)10 L (B) 100 L (C) 1.0 L (D) 0.10 L

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Last Answer : (A)10 L

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Description : The plasma concentration of IgA is (A) 1–5 mg/dl (B) 40–200 mg/dl (C) 60–500 mg/dl (D) 700–1,500 mg/dl

Last Answer : Answer : C

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Description : Flat rate parcel rates Flat Rate Parcel Boxes size Dimension of boxes (in mm) Weight (in Kg.) Tariff (in Rs.) Small - S 250*50*300 0 to 1 125 Medium - M 250*100*300 Above 1 to 2.5 200 Large - L 300*250*200 Above 2.5 to 5 400

Last Answer : Large - L 300*250*200 Above 2.5 to 5 400

No TDS will be deducted if the amount of interest paid in a financial year does not exceed Rs____ a) 3500/- b) 5000/- c) 1000/- d) 10000/

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Last Answer : d) 10000/

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Last Answer : Cycle of concentration

The ratio of dissolved solids in circulating water to dissolved solids in makeup water is called. • Liquid gas ratio • Cycle of concentration • Cooling tower effectiveness • None of the above

Description : The ratio of dissolved solids in circulating water to dissolved solids in makeup water is called. • Liquid gas ratio • Cycle of concentration • Cooling tower effectiveness • None of the above

Last Answer : Cycle of concentration

The total iron content of the human body is (A) 400–500 mg (B) 1–2 g (C) 2–3 g (D) 4–5 g

Description : The total iron content of the human body is (A) 400–500 mg (B) 1–2 g (C) 2–3 g (D) 4–5 g

Last Answer : Answer : D

In sewage, the solids in mg per litre is A. 100 to 500 B. 500 to 1000 C. 1000 to 1500 D. 1500 to 2000

Description : In sewage, the solids in mg per litre is A. 100 to 500 B. 500 to 1000 C. 1000 to 1500 D. 1500 to 2000

Last Answer : ANS: B

Two identical resistors are connected in parallel and consume 200 watts together. A third identical resistor is added in parallel. The total power consumed is: w) 100 watts x) 200 watts y) 300 watts z) 400 watts

Description : Two identical resistors are connected in parallel and consume 200 watts together. A third identical resistor is added in parallel. The total power consumed is: w) 100 watts x) 200 watts y) 300 watts z) 400 watts

Last Answer : ANSWER: Y -- 300 WATTS

Dissolved oxygen (DO) should not be less than _____________ mg/L of water. (a) 14 (b) 3 (c) 5 (d) 2

Description : Dissolved oxygen (DO) should not be less than _____________ mg/L of water. (a) 14 (b) 3 (c) 5 (d) 2

Last Answer : Ans:(c)

On nephelometry turbidity unit (NTU) is equal to the turbidity produced by (a) 1 mg SiO2 dissolved in 1 l of distilled water with the test being run according to absorption principle (b) 1 mg SiO2 dissolved in 1 l of distilled water with the test being run according t scattering principle (c) 1 mg Formazin dissolved in 1 l of distilled water with the test being run according to absorption principle (d) 1 mg Formazin dissolved in 1 l o f distilled water with the test being run according to scattering principle.

Description : On nephelometry turbidity unit (NTU) is equal to the turbidity produced by (a) 1 mg SiO2 dissolved in 1 l of distilled water with the test being run according to absorption principle (b) 1 ... Formazin dissolved in 1 l o f distilled water with the test being run according to scattering principle.

Last Answer : (d) 1 mg Formazin dissolved in 1 l o f distilled water with the test being run according to scattering principle.

An approximate estimation of total dissolved solids of a given water sample is often made by measuring (a) Electrical conductivity of the water sample (b) Electro-magnetic conductivity of the water sample (c) Sound conductivity of the water sample (d) Thermal conductivity of the water sample

Description : An approximate estimation of total dissolved solids of a given water sample is often made by measuring (a) Electrical conductivity of the water sample (b) Electro-magnetic conductivity of the water sample (c) Sound conductivity of the water sample (d) Thermal conductivity of the water sample

Last Answer : (a) Electrical conductivity of the water sample

What: can u Calculate the dimension of the primary sludge Pump if the Concentration of total Carbon 480 mg/l and the inorganic 80 mg/l?

Description : What: can u Calculate the dimension of the primary sludge Pump if the Concentration of total Carbon 480 mg/l and the inorganic 80 mg/l?

Last Answer : 6

The total glycogen content of the body is about ______ gms. (A) 100 (B) 200 (C) 300 (D) 500

Description : The total glycogen content of the body is about ______ gms. (A) 100 (B) 200 (C) 300 (D) 500

Last Answer : C

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Last Answer : 200 mF

A short column 20 cm × 20 cm in section is reinforced with 4 bars whose area of cross section is 20 sq. cm. If permissible compressive stresses in concrete and steel are 40 kg/cm2 and 300 kg/cm2 , the Safe load on the column, should not exceed (A) 4120 kg (B) 41,200 kg (C) 412,000 kg (D) None of these

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Last Answer : Answer: Option B

The amount of copper in the human body is (A) 50–80 mg (B) 100–150 mg (C) 400–500 mg (D) 500–1000 mg MINERAL METABOLISM 189

Description : The amount of copper in the human body is (A) 50–80 mg (B) 100–150 mg (C) 400–500 mg (D) 500–1000 mg MINERAL METABOLISM 189

Last Answer : Answer : B