The presence of 20 or more genera of algae in a water body is an indication of high organic pollution. It is

The presence of 20 or more genera of algae in a water body is an indication of high organic pollution. It is
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The presence of 20 or more genera of algae in a water body is an indication of high organic ... index C. Pollution index D. Algal genus index
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(2) amount of oxygen used for biochemical oxidation Explanation: Biochemical oxygen demand or B.O.D. is the amount of dissolved oxygen needed by aerobic biological organisms in a body of water to break down organic material present in a given water sample at certain temperature over a specific time period. The term also refers to a chemical procedure for determining this amount. This is not a precise quantitative test, although it is widely used as an indication of the organic quality of water.

Description : (2) amount of oxygen used for biochemical oxidation Explanation: Biochemical oxygen demand or B.O.D. is the amount of dissolved oxygen needed by aerobic biological organisms in a body of water to ... quantitative test, although it is widely used as an indication of the organic quality of water.

Last Answer : The addition of gypsum to port-land cement helps in : (1) increasing the strength of cement (2) rapid setting of cement (3) preventing rapid setting of cement (4) reduction in the cost of cement

Which of the following statements about the presence of gallstones in diabetes patients is/are correct? A. Gallstones occur with the same frequency in diabetes patients as in the healthy population. B. The presence of gallstones, regardless of the presence of symptoms, is an indication for cholecystectomy in a diabetes patient. C. Diabetes patients with gallstones and chronic biliary pain should be managed nonoperatively with chemical dissolution and/or lithotripsy because of severe complicating medical conditions and a high operative risk. D. The presence of diabetes and gallstones places the patient at high risk for pancreatic cancer. E. Diabetes patients with symptomatic gallstones should have prompt elective cholecystectomy, to avoid the complications of acute cholecystitis and g

Description : Which of the following statements about the presence of gallstones in diabetes patients is/are correct? A. Gallstones occur with the same frequency in diabetes patients as in the ... have prompt elective cholecystectomy, to avoid the complications of acute cholecystitis and gallbladder necrosis.

Last Answer : Answer: E DISCUSSION: Gallstones have been found to be very prevalent in patients with type II (non-insulin-dependent) diabetes mellitus, perhaps related to the dyslipoproteinemia in ... added mortality associated with it. There is no causal relationship between diabetes and pancreatic cancer

During combustion of a gaseous fuel, the presence of a non-luminous flame is an indication of the (A) Incomplete combustion (B) Complete combustion (C) High oxygen in flue gas (D) None of these

Description : During combustion of a gaseous fuel, the presence of a non-luminous flame is an indication of the (A) Incomplete combustion (B) Complete combustion (C) High oxygen in flue gas (D) None of these

Last Answer : (B) Complete combustion

Turbidity of water is an indication of the presence of (A) Suspended inorganic matter (B) Dissolved solids (C) Floating solids (D) Dissolved gases

Description : Turbidity of water is an indication of the presence of (A) Suspended inorganic matter (B) Dissolved solids (C) Floating solids (D) Dissolved gases

Last Answer : (A) Suspended inorganic matter

Assertion: Presence of large amounts of nutrients in water body causes excessive growth of planktonic algae. Reason : It is due to biomagnifications

Description : Assertion: Presence of large amounts of nutrients in water body causes excessive growth of planktonic algae. Reason : It is due to biomagnifications

Last Answer : Assertion: Presence of large amounts of nutrients in water body causes excessive growth of planktonic algae. ... but reason is wrong D. Both are wrong

For a packed bed reactor; the presence of a long tail in the residence time distribution curve is an indication of: (A) Ideal plug flow (B) Bypass (C) Dead zone (D) Channelling

Description : For a packed bed reactor; the presence of a long tail in the residence time distribution curve is an indication of: (A) Ideal plug flow (B) Bypass (C) Dead zone (D) Channelling

Last Answer : (C) Dead zone

Assertion `:` If the muscles of both auricles of the person permanently fail to contract due to any reason there will still be no change in his genera

Description : Assertion `:` If the muscles of both auricles of the person permanently fail to contract due to any reason there will still be no change in his genera

Last Answer : Assertion `:` If the muscles of both auricles of the person permanently fail to contract due to any ... . D. If both Assertion & Reason are false.

$ The relationship between comparable organs and structure is called Analogy . ! A group of related genera is classified as kingdom.

Description : $ The relationship between comparable organs and structure is called Analogy . ! A group of related genera is classified as kingdom.

Last Answer : $ The relationship between comparable organs and structure is called Analogy . ! A group of related genera is ... wrong D. If both As and R are wrong.

What American city is synonymous with the genera of the blues and helping hundreds of musicians sharpen their craft?

Description : What American city is synonymous with the genera of the blues and helping hundreds of musicians sharpen their craft?

Last Answer : Need answer

Apple and pear belongs to: a. Same genus b. Different sub genus c. Different genera d. All of above

Description : Apple and pear belongs to: a. Same genus b. Different sub genus c. Different genera d. All of above

Last Answer : Different sub genus

The three important genera of Anacardiaceae family are. a. Mangifera, Pistacia and Cocos b. Eugenia, Anacardium, Pistacia c. Pistacia, Mangifera, Anacardium d. Psidium, Aurantium, Mangifera

Description : The three important genera of Anacardiaceae family are. a. Mangifera, Pistacia and Cocos b. Eugenia, Anacardium, Pistacia c. Pistacia, Mangifera, Anacardium d. Psidium, Aurantium, Mangifera

Last Answer : Pistacia, Mangifera, Anacardium

Match the following genera with their respective phylum. (1) Ophiura (i) Mollusca (2) Physalia (ii) Platyhelminthes (3) Pinctada (iii)Echinodermata (4) Planaria (iv) Coelenterata(a) (1)-(iv), (2)-(i), (3)-(iii), (4)-(ii) (b) (1)-(iii), (2)-(iv), (3)-(i), (4)-(ii) (c) (1)-(i), (2)-(iii), (3)-(iv), (4)-(ii) (d) (1)-(iii), (2)-(iv), (3)-(ii), (4)-(i)

Description : Match the following genera with their respective phylum. (1) Ophiura (i) Mollusca (2) Physalia (ii) Platyhelminthes (3) Pinctada (iii)Echinodermata (4) Planaria (iv) Coelenterata (a) (1)-(iv), (2)-(i), (3)-(iii), (4)-(ii) (b) (1)-( ... , (3)-(iv), (4)-(ii) (d) (1)-(iii), (2)-(iv), (3)-(ii), (4)-(i)

Last Answer : (b) (1)-(iii), (2)-(iv), (3)-(i), (4)-(ii)

The book ‘Genera Plantarum’ was written by (a) Engler and Prantl (b) Bentham and Hooker (c) Bessey (d) Hutchinson.

Description : The book ‘Genera Plantarum’ was written by (a) Engler and Prantl (b) Bentham and Hooker (c) Bessey (d) Hutchinson.

Last Answer : (c) Bessey

Which one of the following genera is not associated with a foodborne intoxication? a. Clostridium b. Salmonella c. Staphylococcus d. All three (A-C) are associated with a foodborne intoxication.

Description : Which one of the following genera is not associated with a foodborne intoxication? a. Clostridium b. Salmonella c. Staphylococcus d. All three (A-C) are associated with a foodborne intoxication.

Last Answer : b. Salmonella

The most commonly reported cause of invasive bacterial gastroenteritis is associated with which of the following bacterial genera? a. Campylobacter b. Staphylococcus c. Shigeila d. Ciostridium

Description : The most commonly reported cause of invasive bacterial gastroenteritis is associated with which of the following bacterial genera? a. Campylobacter b. Staphylococcus c. Shigeila d. Ciostridium

Last Answer : a. Campylobacter

Which one of the following genera is not associated with a foodborne intoxication? a. Clostridium b. Salmonella c. Staphylococcus d. All three (A-C) are associated with a foodborne intoxication.

Description : Which one of the following genera is not associated with a foodborne intoxication? a. Clostridium b. Salmonella c. Staphylococcus d. All three (A-C) are associated with a foodborne intoxication.

Last Answer : b. Salmonella

The most commonly reported cause of invasive bacterial gastroenteritis is associated with which of the following bacterial genera? a. Campylobacter b. Staphylococcus c. Shigeila d. Ciostridium

Description : The most commonly reported cause of invasive bacterial gastroenteritis is associated with which of the following bacterial genera? a. Campylobacter b. Staphylococcus c. Shigeila d. Ciostridium

Last Answer : a. Yersinia pestis.

The group containing the most primitive living vascular plants has only two living genera. This group is named: a) arthropoda b) psilophyta c) bryophyta

Description : The group containing the most primitive living vascular plants has only two living genera. This group is named: a) arthropoda b) psilophyta c) bryophyta

Last Answer : ANSWER: B -- PSILOPHYTA

Research is based upon Options: A) Scientific method B) Experiments C) Scientists D) Genera principles

Description : Research is based upon Options: A) Scientific method B) Experiments C) Scientists D) Genera principles

Last Answer : A) Scientific method

The Brake Horse power of the motor (efficiency 60%) required for a pump of capacity 0.075 cumec for a total lift of 12 m, is A. 10 B. 15 C. 20 D. 25 Q No: 44 Aerobic bacterias A. Flourish in the presence of free oxygen B. Consume organic matter as their food C. Oxidise organic matter in sewage D. All the above

Description : The Brake Horse power of the motor (efficiency 60%) required for a pump of capacity 0.075 cumec for a total lift of 12 m, is A. 10 B. 15 C. 20 D. 25 Q No: 44 Aerobic bacterias A. ... presence of free oxygen B. Consume organic matter as their food C. Oxidise organic matter in sewage D. All the above

Last Answer : ANS: D

An organism which can monitor air pollution is – (1) Bacteria (2) Lichen (3) Algae (4) Fungi

Description : An organism which can monitor air pollution is – (1) Bacteria (2) Lichen (3) Algae (4) Fungi

Last Answer : (2) Lichen Explanation: Lichens can be used as air pollution indicators, especially of the concentration of sulfur dioxide in the atmosphere. Air pollutants dissolved in rainwater, especially sulfur ... lichens, and prevent them from growing. This makes lichens natural indicators of air pollution.

Which is used as an Air pollution indicator? (1) Algae (2) Fungi (3) Bacteria (4) Lichens

Description : Which is used as an Air pollution indicator? (1) Algae (2) Fungi (3) Bacteria (4) Lichens

Last Answer : (4) Lichens Explanation: Lichens are used as air pollution indicators, especially of the concentration of sulfur dioxide in the atmosphere. If air is very badly polluted with sulphur dioxide there may be no ... may be found. If the air is clean, shrub-by, hairy and leafy lichens become abundant.

Which one of the following is an indicator of air pollution? (1) Cycas (2) Algae (3) Bryophytes (4) Lichens

Description : Which one of the following is an indicator of air pollution? (1) Cycas (2) Algae (3) Bryophytes (4) Lichens

Last Answer : (4) Lichens Explanation: Lichens are an indicator of air pollution.

Which of the following are most suitable indicators of SO2 pollution in the environment? (a) Algae (b) Fungi (c) Lichens (d) Conifers

Description : Which of the following are most suitable indicators of SO2 pollution in the environment? (a) Algae (b) Fungi (c) Lichens (d) Conifers

Last Answer : (c) Lichens

Lichens indicate SO2 pollution because they (a) show association between algae and fungi (b) grow faster than others (c) are sensitive to SO2 (d) flourish in SO2 rich environment.

Description : Lichens indicate SO2 pollution because they (a) show association between algae and fungi (b) grow faster than others (c) are sensitive to SO2 (d) flourish in SO2 rich environment.

Last Answer : (c) are sensitive to SO2

Which is used as an Air pollution indicator? (1) Algae (2) Fungi (3) Bacteria (4) Lichens

Description : Which is used as an Air pollution indicator? (1) Algae (2) Fungi (3) Bacteria (4) Lichens

Last Answer : Lichens

An organism which can monitor air pollution is (1) Bacteria (2) Lichen (3) Algae (4) Fungi

Description : An organism which can monitor air pollution is (1) Bacteria (2) Lichen (3) Algae (4) Fungi

Last Answer : Lichen

Which one of the following is an indicator of air pollution ? (1) Cycas (2) Algae (3) Bryophytes (4) Lichens

Description : Which one of the following is an indicator of air pollution ? (1) Cycas (2) Algae (3) Bryophytes (4) Lichens

Last Answer : Lichens

The bluish colour of water in deep sea is due to (a) The presence of algae and other plants found in water (b) Reflection of sky in water (c) Scattering of light (d) Absorbtion of light by sea

Description : The bluish colour of water in deep sea is due to (a) The presence of algae and other plants found in water (b) Reflection of sky in water (c) Scattering of light (d) Absorbtion of light by sea

Last Answer : (c) Scattering of light

Growth of __________ is promoted by the presence of manganese in water. (A) Files (B) Algae (C) Micro-organisms (D) Mosquitoes

Description : Growth of __________ is promoted by the presence of manganese in water. (A) Files (B) Algae (C) Micro-organisms (D) Mosquitoes

Last Answer : (C) Micro-organisms

Match column -I with column - II. Column-I Column-II A. Saprophyte (i) Symbiotic association of fungi with plant roots B. Parasite (ii) Decomposition of dead organic materials C. Lichens (iii) Living on living plants or animals D. Mycorrhiza (iv) Symbiotic association of algae and fungi Choose the correct answer from the options given below. (A) (B) (C) (D) (a) (ii) (iii) (iv) (i) (b) (i) (ii) (iii) (iv) (c) (iii) (ii) (i) (iv) (d) (ii) (i) (iii) (iv)

Description : Match column -I with column - II. Column-I Column-II A. Saprophyte (i) Symbiotic association of fungi with plant roots B. Parasite (ii) Decomposition of dead organic materials C. Lichens (iii) Living on living plants or animals D. ... (iii) (iv) (c) (iii) (ii) (i) (iv) (d) (ii) (i) (iii) (iv)

Last Answer : (a) (ii) (iii) (iv) (i)

The brownish colour of Brown Algae is due to presence of ...... pigment?

Description : The brownish colour of Brown Algae is  due to presence of ...... pigment?

Last Answer : Xanthophyll

The primary source of organic pollution in fresh water bodies is (A) run-off urban areas (B) run-off from agricultural forms (C) sewage effluents (D) industrial effluents

Description : The primary source of organic pollution in fresh water bodies is (A) run-off urban areas (B) run-off from agricultural forms (C) sewage effluents (D) industrial effluents

Last Answer : (C) sewage effluents

For individuals known to be dying by virtue of age and/or diagnoses, which of the following signs indicate approaching death: a) Increased restlessness As the oxygen supply to the brain decreases, the patient may become restless. b) Increased wakefulness As the body weakens, the patient will sleep more and begin to detach from the environment. c) Increased eating For many patients, refusal of food is an indication that they are ready to die. d) Increased urinary output Based upon decreased intake, urinary output generally decreases in amount and frequency.

Description : For individuals known to be dying by virtue of age and/or diagnoses, which of the following signs indicate approaching death: a) Increased restlessness As the oxygen supply to the ... Increased urinary output Based upon decreased intake, urinary output generally decreases in amount and frequency.

Last Answer : a) Increased restlessness As the oxygen supply to the brain decreases, the patient may become restless.

Which of the following sources is responsible for maximum air pollution? (A) Industrial chimney exhaust (B) Forest fire (C) Automobiles exhaust (D) Photochemical oxidation of organic matter

Description : Which of the following sources is responsible for maximum air pollution? (A) Industrial chimney exhaust (B) Forest fire (C) Automobiles exhaust (D) Photochemical oxidation of organic matter

Last Answer : (C) Automobiles exhaust

Which of the following is not a natural source of air pollution? (A) Volcanic eruptions and lightening discharges (B) Biological decay of vegetable matter (C) Photochemical oxidation of organic matter (D) None of these

Description : Which of the following is not a natural source of air pollution? (A) Volcanic eruptions and lightening discharges (B) Biological decay of vegetable matter (C) Photochemical oxidation of organic matter (D) None of these

Last Answer : (D) None of these

Bacterial aerobic oxidation of polluted water in biological oxidation ponds is done to purify it. Presence of bacteria helps in (A) Coagulation and flocculation of colloids (B) Oxidation of carbonaceous matter to CO2 (C) Nitrification or oxidation of ammonia derived from breakdown of nitrogenous organic matter to the nitrite and eventually to the nitrate (D) All (A), (B) and (C)

Description : Bacterial aerobic oxidation of polluted water in biological oxidation ponds is done to purify it. Presence of bacteria helps in (A) Coagulation and flocculation of colloids (B) Oxidation of carbonaceous matter to CO2 (C) ... to the nitrite and eventually to the nitrate (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

Pick out the correct statement. (A) Ponchan-Savarit method is more accurate than McCabe-Thiele method to determine the number of theoretical stages required for the separation of non￾ideal binary system by distillation (B) A sharp decrease in pressure drop is an indication of flooding in a distillation coloumn (C) Solvent used in extractive distillation should be of high volatility (D) Flash distillation is suitable for separating components which have very close boiling temperature

Description : Pick out the correct statement. (A) Ponchan-Savarit method is more accurate than McCabe-Thiele method to determine the number of theoretical stages required for the separation of ... Flash distillation is suitable for separating components which have very close boiling temperature

Last Answer : (A) Ponchan-Savarit method is more accurate than McCabe-Thiele method to determine the number of theoretical stages required for the separation of non￾ideal binary system by distillation

Breaking of big organic molecules in the presence of enzymes is called

Description : Breaking of big organic molecules in the presence of enzymes is called

Last Answer : Breaking of big organic molecules in the presence of enzymes is called A. Cracking B. Pyrolysis C. Fermentation D. Oxidation

(1) the action of ultraviolet rays on oxygen Explanation: The majority of tropospheric ozone formation occurs when nitrogen oxides (NOx), carbon monoxide (CO ) and volatile organic compounds (VOCs), such as xylene, react in the atmosphere in the presence of sunlight containing ultra violet rays. NOx, CO, and VOCs are called ozone precursors. CO + 2O2 + CO2 + O3

Description : (1) the action of ultraviolet rays on oxygen Explanation: The majority of tropospheric ozone formation occurs when nitrogen oxides (NOx), carbon monoxide (CO ) and volatile organic compounds (VOCs), such as xylene, ... violet rays. NOx, CO, and VOCs are called ozone precursors. CO + 2O2 + CO2 + O3

Last Answer : Water is not effective in extinguishing a fire caused by petrol because - (1) the flame is too hot for water to cool it down (2) water and petrol react chemically (3) water and petrol are ... (4) water and petrol are immiscible with each other and petrol which forms the upper layer continues to burn

To test chemical oxygen demand (C.O.D.) of sewage, organic matter is oxidised by potassium dichromate in the presence of A. Hydrochloric acid B. Sulphuric acid C. Nitric acid D. Citric acid

Description : To test chemical oxygen demand (C.O.D.) of sewage, organic matter is oxidised by potassium dichromate in the presence of A. Hydrochloric acid B. Sulphuric acid C. Nitric acid D. Citric acid

Last Answer : ANS: B

For the COD test of sewage, organic matter is oxidised by K2Cr2O7 in the presence of A. H2SO4 B. HNO3 C. HCl D. None of these

Description : For the COD test of sewage, organic matter is oxidised by K2Cr2O7 in the presence of A. H2SO4 B. HNO3 C. HCl D. None of these

Last Answer : ANS: A

How will you detect the presence of unsaturation in an organic compound?

Description : How will you detect the presence of unsaturation in an organic compound?

Last Answer : Ans. Generally Unsaturated organic compound decolorize Bayer‘s reagent and Bromine water.

According to Darwin, the organic evolution is due to (a) competition within closely related species (b) reduced feeding efficiency in one species due to the presence of interfering species (c) intraspecific competition (d) interspecific competition.

Description : According to Darwin, the organic evolution is due to (a) competition within closely related species (b) reduced feeding efficiency in one species due to the presence of interfering species (c) intraspecific competition (d) interspecific competition.

Last Answer : (c) intraspecific competition

What is the major organic product of the reaction between benzene and isobutyl chloride in the presence of AlCl3? (a) tert-butylbenzene (b) isobutylbenzene (c) n-butylbenzene (d) chlorobenzene

Description : What is the major organic product of the reaction between benzene and isobutyl chloride in the presence of AlCl3? (a) tert-butylbenzene (b) isobutylbenzene (c) n-butylbenzene (d) chlorobenzene

Last Answer : tert-butylbenzene

Which one of the following correctly signifies the purpose of an Organization Chart ? (A) Office Décor (B) Indication of available Office services (C) Flow of Authority (D) High Morale

Description : Which one of the following correctly signifies the purpose of an Organization Chart ? (A) Office Décor (B) Indication of available Office services (C) Flow of Authority (D) High Morale

Last Answer : Answer: Flow of Authority

Pick out the wrong statement. (A) Critical moisture content is not a property of the material itself (B) A sharp increase in pressure drop gives an indication of the flooding in a distillation column (C) Separation of components is not possible in liquid extraction, if selectivity is unity (D) Dehydration of ethyl alcohol is most economically done by molecular distillation at very high vacuum

Description : Pick out the wrong statement. (A) Critical moisture content is not a property of the material itself (B) A sharp increase in pressure drop gives an indication of the flooding in a ... unity (D) Dehydration of ethyl alcohol is most economically done by molecular distillation at very high vacuum

Last Answer : (D) Dehydration of ethyl alcohol is most economically done by molecular distillation at very high vacuum

High acid value of an oil or fat is an indication of (A) Storage under improper conditions (B) Absence of unsaturation (C) Its smaller molecular weight (D) None of these

Description : High acid value of an oil or fat is an indication of (A) Storage under improper conditions (B) Absence of unsaturation (C) Its smaller molecular weight (D) None of these

Last Answer : (A) Storage under improper conditions

__________ the exhaust gas is an indication of the incomplete combustion of fuel. (A) Low temperature of (B) High temperature of (C) High % of CO in (D) High % of CO2in

Description : __________ the exhaust gas is an indication of the incomplete combustion of fuel. (A) Low temperature of (B) High temperature of (C) High % of CO in (D) High % of CO2in

Last Answer : (C) High % of CO in

The primary difference between financial statement errors and fraud is that a. Errors are intentional misstatements by management, while fraud involves unintentional mistakes or omissions. b. Errors are more likely to provide an indication that an illegal act has occurred. c. Errors are unintentional mistakes or omissions, while fraud involves intentional misstatements. d. There is no difference as errors and fraud have the same meaning.

Description : The primary difference between financial statement errors and fraud is that a. Errors are intentional misstatements by management, while fraud involves unintentional mistakes or omissions. b. Errors are more ... misstatements. d. There is no difference as errors and fraud have the same meaning.

Last Answer : Errors are unintentional mistakes or omissions, while fraud involves intentional misstatements.