Washing of coal is done to reduce the (A) Inherent impurities (B) Adhering impurities (C) Mineral matter (D) Both (B) and (C)

Washing of coal is done to reduce the
(A) Inherent impurities
(B) Adhering impurities
(C) Mineral matter
(D) Both (B) and (C)
by

1 Answer

Answer :

(D) Both (B) and (C)
by

Related questions

Coal containing large quantity of __________ are difficult to wash. (A) Ash (B) Inherent mineral matter (C) Free impurities (D) Volatile matter

Description : Coal containing large quantity of __________ are difficult to wash. (A) Ash (B) Inherent mineral matter (C) Free impurities (D) Volatile matter

Last Answer : (B) Inherent mineral matter

Washing of coal decreases its (A) Caking index (B) Mineral matter content (C) Ash content (D) Both (B) and (C)

Description : Washing of coal decreases its (A) Caking index (B) Mineral matter content (C) Ash content (D) Both (B) and (C)

Last Answer : (B) Mineral matter content

A coal with high ash content (A) Has higher calorific value (B) Is harder and stronger(C) Is not subjected to washing(D) Has low quantity of mineral matter

Description : A coal with high ash content (A) Has higher calorific value (B) Is harder and stronger (C) Is not subjected to washing (D) Has low quantity of mineral matter

Last Answer : (B) Is harder and stronger

The operation of removal of impurities or clay adhering to iron ores, is known as (A) Dressing (B) Calcination (C) Roasting (D) Smelti

Description : The operation of removal of impurities or clay adhering to iron ores, is known as (A) Dressing (B) Calcination (C) Roasting (D) Smelti

Last Answer : Answer: Option A

The liquid used for the washing of coal in an industrial coal washery is a mixture of water and (A) Carbon tetrachloride (B) Sand (40%) (C) Mineral oil of high viscosity & specific gravity (1.6) (D) None of these

Description : The liquid used for the washing of coal in an industrial coal washery is a mixture of water and (A) Carbon tetrachloride (B) Sand (40%) (C) Mineral oil of high viscosity & specific gravity (1.6) (D) None of these

Last Answer : (B) Sand (40%)

Washing of coal does not reduce its (A) S & P content (B) Heating value (C) Fusion point of ash (D) None of these

Description : Washing of coal does not reduce its (A) S & P content (B) Heating value (C) Fusion point of ash (D) None of these

Last Answer : (D) None of these

In coal washeries, three products namely the valuable product (i.e. clean/washed coal), discarded product (i.e. mineral matter) and an additional concentrated product called __________ is produced. (A) Concentrate (B) Tailing (C) Middling (D) None of these

Description : In coal washeries, three products namely the valuable product (i.e. clean/washed coal), discarded product (i.e. mineral matter) and an additional concentrated product called __________ is produced. (A) Concentrate (B) Tailing (C) Middling (D) None of these

Last Answer : (C) Middling

Mineral matter, 'M' and ash percentage 'A' in coal are roughly related as (A) M = 1.8 A (B) M = 0.5 A (C) M = 1.1 A (D) M = A

Description : Mineral matter, 'M' and ash percentage 'A' in coal are roughly related as (A) M = 1.8 A (B) M = 0.5 A (C) M = 1.1 A (D) M = A

Last Answer : (C) M = 1.1 A

Mineral matter content (M) and ash content (A) in coal are approximately related as (A) M = 1.1A (B) M = A (C) M = 1.5A (D) M = 2A

Description : Mineral matter content (M) and ash content (A) in coal are approximately related as (A) M = 1.1A (B) M = A (C) M = 1.5A (D) M = 2A

Last Answer : (A) M = 1.1A

Fat coals' are those coals which have very high (A) Caking capacity (B) Volatile matter content (C) Fusion point of its ash (D) Inherent moisture conten

Description : Fat coals' are those coals which have very high (A) Caking capacity (B) Volatile matter content (C) Fusion point of its ash (D) Inherent moisture conten

Last Answer : (A) Caking capacity

The earthy impurities present in the mineral are called

Description : The earthy impurities present in the mineral are called

Last Answer : The earthy impurities present in the mineral are called A. Flux B. slag C. gangue D. refractory material

Limestone is added in the blast furnace (during pig iron manufacture) to (A) Form slag by combining with impurities (B) Supply heat by undergoing exothermic reaction with impurities (C) Reduce the coke consumption (D) Reduce slag viscosity

Description : Limestone is added in the blast furnace (during pig iron manufacture) to (A) Form slag by combining with impurities (B) Supply heat by undergoing exothermic reaction with impurities (C) Reduce the coke consumption (D) Reduce slag viscosity

Last Answer : Option A

What is the differenc between total moisture and inherent moisture in coal ?

Description : What is the differenc between total moisture and inherent moisture in coal ?

Last Answer : The moisture content of the bulk as sampled is referred to as total moisture, and that of the air dried sample is called inherent moisture.

Which of the following statements is true with regard to the relationship among audit risk, audit evidence, and materiality? a. The lower the inherent risk and control risk, the lower the aggregate materiality threshold. b. Under conditions of high inherent and control risk, the auditor should place more emphasis on obtaining external evidence and should reduce reliance on internal evidence. c. Where inherent risk is high and control risk is low, the auditor may safely ignore inherent risk. d. Aggregate materiality thresholds should not change under conditions of changing risk levels

Description : Which of the following statements is true with regard to the relationship among audit risk, audit evidence, and materiality? a. The lower the inherent risk and control risk, the lower ... inherent risk. d. Aggregate materiality thresholds should not change under conditions of changing risk levels

Last Answer : Under conditions of high inherent and control risk, the auditor should place more emphasis on obtaining external evidence and should reduce reliance on internal evidence

Flux addition during smelting of ore is done to (A) Remove impurities/gangue (B) Enhance rate of reaction (C) Accelerate reduction of ore (D) Separate slag from metal

Description : Flux addition during smelting of ore is done to (A) Remove impurities/gangue (B) Enhance rate of reaction (C) Accelerate reduction of ore (D) Separate slag from metal

Last Answer : (A) Remove impurities/gangue

Presence of force moisture in coal is most disadvantageous during its (A) Transportation and handling (B) Washing (C) Pulverisation (D) Storage

Description : Presence of force moisture in coal is most disadvantageous during its (A) Transportation and handling (B) Washing (C) Pulverisation (D) Storage

Last Answer : (C) Pulverisation

Froth floatation is used for (A) Washing fine coal dust (< 0.5 mm size) (B) Washing lump coal (> 80 mm size) (C) Removing ash from the coal based on difference in specific gravity of coal and ash

Description : Froth floatation is used for (A) Washing fine coal dust (< 0.5 mm size) (B) Washing lump coal (> 80 mm size) (C) Removing ash from the coal based on difference in specific gravity of coal and ash

Last Answer : (A) Washing fine coal dust (< 0.5 mm size)

Washing of coal (A) Reduces its sulphur and ash content (B) Controls its ash fusibility and increases its calorific value(C) Improves its coking properties(D) All (A), (B) and (C)

Description : Washing of coal (A) Reduces its sulphur and ash content (B) Controls its ash fusibility and increases its calorific value (C) Improves its coking properties (D) All (A), (B) and (C)

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

Washing of coal (A) Reduces its ash & sulphur content (B) Improves its coking properties (C) Increase the fusion point of its ash by removing chlorine compounds (D) All (A), (B) and (C)

Description : Washing of coal (A) Reduces its ash & sulphur content (B) Improves its coking properties (C) Increase the fusion point of its ash by removing chlorine compounds (D) All (A), (B) and (C)

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

Coal washing waste water containing about 3% suspended solids (comprising of clay, slate, stone etc.) is treated for solid particles removal (A) By chemical coagulation (B) In sedimentation tanks equipped with mechanical scrapper (C) In vacuum filter (D) In clarifiers

Description : Coal washing waste water containing about 3% suspended solids (comprising of clay, slate, stone etc.) is treated for solid particles removal (A) By chemical coagulation (B) In sedimentation tanks equipped with mechanical scrapper (C) In vacuum filter (D) In clarifiers

Last Answer : (B) In sedimentation tanks equipped with mechanical scrapper

Which of the following helps in lubricating and adhering the mastricated food particles into a bolus

Description : Which of the following helps in lubricating and adhering the mastricated food particles into a bolus

Last Answer : Which of the following helps in lubricating and adhering the mastricated food particles into a bolus ... Secretion of lacrymal gland D. Gastric juice

Read the following (A - D) stetements :- (A) Tight junctions help to stop substances from leaking across a tissue (B) Adhering junctions perform cemen

Description : Read the following (A - D) stetements :- (A) Tight junctions help to stop substances from leaking across a tissue (B) Adhering junctions perform cemen

Last Answer : Read the following (A - D) stetements :- (A) Tight junctions help to stop substances from leaking across a ... correct A. Four B. Three C. Two D. One

Cell junctions called tight , adhering and gap junctions are found in

Description : Cell junctions called tight , adhering and gap junctions are found in

Last Answer : Cell junctions called tight , adhering and gap junctions are found in A. Neural tissue B. Muscular tissue C. Connective tissue D. Epithelium tissue

. Integrity in the project management field is accomplished through all of the following except which one? A. Training to learn how to manage relationships with others from different cultures B. Adhering to an ethical code C. Applying established project management processes D. Following the PMP Code of Professional Conduct

Description :  . Integrity in the project management field is accomplished through all of the  following except which one?  A. Training to learn how to manage relationships with others from different ... C. Applying established project management processes D. Following the PMP Code of Professional Conduct

Last Answer : A. Training to learn how to manage relationships with others from different cultures

The cell junctions called tight, adhering and gap junctions are found in (a) connective tissue (b) epithelial tissue (c) neural tissue (d) muscular tissue

Description : The cell junctions called tight, adhering and gap junctions are found in (a) connective tissue (b) epithelial tissue (c) neural tissue (d) muscular tissue

Last Answer : (b) epithelial tissue

A retail establishment that is open twenty-four hours a day 1. will have higher sales than other retailers 2. provides time utility 3. is adhering to the marketing concept 4. is production-oriented 5. none of these

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Last Answer : provides time utility

Through which of the following activities does the patient learn to consciously contract excretory sphincters and control voiding cues? a) Biofeedback Cognitively intact patients who have stress or urge incontinence may gain bladder control through biofeedback. b) Kegel exercises Kegel exercises are pelvic floor exercises that strengthen the pubococcygeus muscle. c) Habit training Habit training is used to try to keep the patient dry by strictly adhering to a toileting schedule and may be successful with stress, urge, or functional incontinence. d) Bladder training Habit training is a type of bladder training.

Description : Through which of the following activities does the patient learn to consciously contract excretory sphincters and control voiding cues? a) Biofeedback Cognitively intact patients who have stress or urge ... functional incontinence. d) Bladder training Habit training is a type of bladder training.

Last Answer : a) Biofeedback Cognitively intact patients who have stress or urge incontinence may gain bladder control through biofeedback.

If the precipitate formed is soft, loose and slimy, these are __________ and if the precipitate is hard and adhering on the inner wall, it is called _____________ a) Sludges, scale b) Scale, sludges c) Sludges, rodent d) Scale, rodent

Description : If the precipitate formed is soft, loose and slimy, these are __________ and if the precipitate is hard and adhering on the inner wall, it is called _____________ a) Sludges, scale b) Scale, sludges c) Sludges, rodent d) Scale, rodent

Last Answer : a) Sludges, scale

The adhering of tissues on the surgical electrode usually means: A. Current intensity is too high B. Current intensity is too low C. Dispersion plate not applied to patient D. None of the above

Description : The adhering of tissues on the surgical electrode usually means: A. Current intensity is too high B. Current intensity is too low C. Dispersion plate not applied to patient D. None of the above

Last Answer : B. Current intensity is too low

Which exchange-rate system involves a “leaning against the wind” strategy in which short-term fluctuations in exchange rates are reduced without adhering to any particular exchange rate over the long run? A. Pegged or fixed exchange rates B. Adjustable pegged exchange rates C. Managed floating exchange rates D. Freely floating exchange rates

Description : Which exchange-rate system involves a leaning against the wind strategy in which short-term fluctuations in exchange rates are reduced without adhering to any particular exchange rate over the ... pegged exchange rates C. Managed floating exchange rates D. Freely floating exchange rates

Last Answer : C. Managed floating exchange rates

hich exchange-rate system involves a “leaning against the wind” strategy in which short-term fluctuations in exchange rates are reduced without adhering to any particular exchange rate over the long run? A. Pegged or fixed exchange rates B. Adjustable pegged exchange rates C. Managed floating exchange rates D. Freely floating exchange rates

Description : hich exchange-rate system involves a leaning against the wind strategy in which short-term fluctuations in exchange rates are reduced without adhering to any particular exchange rate over ... Adjustable pegged exchange rates C. Managed floating exchange rates D. Freely floating exchange rates

Last Answer : C. Managed floating exchange rates

Identify the statement that is consistent with utilitarian ethical theory: A. Adhering to a set of principles may well forbid an act that would otherwise provide overall net good consequences. B. No act is ever morally right or wrong in all cases, in every situation. It will all depend on the act's consequences. C. Some actions like murder, theft, rape, and lying are wrong of their very nature, the kind of acts they are. No amount of n

Description : Identify the statement that is consistent with utilitarian ethical theory: A. Adhering to a set of principles may well forbid an act that would otherwise provide overall net good consequences. B. No act is ever ... lying are wrong of their very nature, the kind of acts they are. No amount of n

Last Answer : B. No act is ever morally right or wrong in all cases, in every situation. It will all depend on the act's consequences.

Identify the statement that is consistent with utilitarian ethical theory: A. Adhering to a set of principles may well forbid an act that would otherwise provide overall net good consequences. B. No act is ever morally right or wrong in all cases, in every situation. It will all depend on the act's consequences. C. Some actions like murder, theft, rape, and lying are wrong of their very nature, the kind of acts they are. No amount of net good consequences could ever justify them. D. The end never justifies the means.

Description : Identify the statement that is consistent with utilitarian ethical theory: A. Adhering to a set of principles may well forbid an act that would otherwise provide overall net good consequences. B. No ... amount of net good consequences could ever justify them. D. The end never justifies the means.

Last Answer : B. No act is ever morally right or wrong in all cases, in every situation. It will all depend on the act's consequences.

A retail establishment that is open twenty -four hours a day A)will have higher sales than other retailers. B)provides time utility. C)is adhering to the marketing concept. D)provides form utility. E)is production -oriented.

Description : A retail establishment that is open twenty-four hours a day A)will have higher sales than other retailers. B)provides time utility. C)is adhering to the marketing concept. D)provides form utility. E)is production-oriented.

Last Answer : B)provides time utility.

Calorific value of coal middling generated in coal washeries during washing of coal may be around __________ Kcal/kg. (A) 1000 (B) 4000 (C) 6000 (D) 8000

Description : Calorific value of coal middling generated in coal washeries during washing of coal may be around __________ Kcal/kg. (A) 1000 (B) 4000 (C) 6000 (D) 8000

Last Answer : (B) 4000

The fuel ratio of a coal is (A) The ratio of its percentage of fixed carbon to that of volatile matter (B) Helpful in estimation of its rank (C) Both (A) and (B) (D) Neither (A) nor (B)

Description : The fuel ratio of a coal is (A) The ratio of its percentage of fixed carbon to that of volatile matter (B) Helpful in estimation of its rank (C) Both (A) and (B) (D) Neither (A) nor (B)

Last Answer : (C) Both (A) and (B)

Electrical desalting of crude oil removes the __________ impurities. (A) Oleophilic (B) Oleophobic (C) Both (A) and (B) (D) Neither (A) nor (B

Description : Electrical desalting of crude oil removes the __________ impurities. (A) Oleophilic (B) Oleophobic (C) Both (A) and (B) (D) Neither (A) nor (B

Last Answer : (B) Oleophobic

Steam distillation is used for separation of high boiling (A) Substances from non-volatile impurities (B) Volatile impurity from still higher boiling substances (C) Both (A) and (B) (D) Neither (A) nor (B)

Description : Steam distillation is used for separation of high boiling (A) Substances from non-volatile impurities (B) Volatile impurity from still higher boiling substances (C) Both (A) and (B) (D) Neither (A) nor (B)

Last Answer : (C) Both (A) and (B)

High magnesia lime is added to hot sugar cane juice (during the manufacture of sugar) to (A) Flocculate the impurities(B) Facilitate fast filtration(C) Both (A) and (B)(D) Neither (A) nor (B)

Description : High magnesia lime is added to hot sugar cane juice (during the manufacture of sugar) to (A) Flocculate the impurities (B) Facilitate fast filtration (C) Both (A) and (B) (D) Neither (A) nor (B)

Last Answer : (C) Both (A) and (B)

Is there really any difference in deck wash, car wash or for that matter, dish washing liquid?

Description : Is there really any difference in deck wash, car wash or for that matter, dish washing liquid?

Last Answer : I definitely wouldn’t use dishwashing liquid; I’d use deck wash. I’m no expert, but I would guess that you don’t want something that lathers up a lot and is difficult to rinse. Maybe research ‘how to wash wood’.

Why does the temp of water matter when washing clothes?

Description : Why does the temp of water matter when washing clothes?

Last Answer : With certain temperatures the fabric reacts by shrinking, fading etc. It really depends what you’re washing. What is it? – and I can refine my answer.

The inherent characteristic of an equal percentage valve relating flow rate 'q' with valve stem movement 'x' are described by the equation (A) dq/dx = K (B) dq/dx = K.q (C) dq/dx = K/q (D) dq/dx = Kq 2

Description : The inherent characteristic of an equal percentage valve relating flow rate 'q' with valve stem movement 'x' are described by the equation (A) dq/dx = K (B) dq/dx = K.q (C) dq/dx = K/q (D) dq/dx = Kq 2

Last Answer : (A) dq/dx = K

According to Philippine Standards on Auditing, because there are inherent limitations in an audit that affect the auditor's ability to detect material misstatements, the auditor is: a. Neither a guarantor nor an insurer of financial statements. b. A guarantor but not an insurer of the statements. c. An insurer but not a guarantor of the statements. d. Both a guarantor and an insurer of the financial statements.

Description : According to Philippine Standards on Auditing, because there are inherent limitations in an audit that affect the auditor's ability to detect material misstatements, the auditor is: a. Neither a ... guarantor of the statements. d. Both a guarantor and an insurer of the financial statements.

Last Answer : Neither a guarantor nor an insurer of financial statements

Most auditors assess inherent risk as high for related parties and related-party transactions because a. Of the accounting disclosure requirement. b. Of the lack of independence between the parties. c. Both a and b. d. It is required by generally accepted accounting principles

Description : Most auditors assess inherent risk as high for related parties and related-party transactions because a. Of the accounting disclosure requirement. b. Of the lack of independence between the parties. c. Both a and b. d. It is required by generally accepted accounting principles

Last Answer : Both a and b

The commodity which accounts for the maximum volume of goods transported by the railways in India is (a) iron and steel (b) coal (c) mineral oil (d) metallic ores (other than iron ore)

Description : The commodity which accounts for the maximum volume of goods transported by the railways in India is (a) iron and steel (b) coal (c) mineral oil (d) metallic ores (other than iron ore)

Last Answer : Ans: (b)

Which of the following is the power resource mineral? A. Iron ore B. Limestone C. Coal 78 D. Copper

Description : Which of the following is the power resource mineral? A. Iron ore B. Limestone C. Coal 78 D. Copper

Last Answer : ANSWER: C

Which of the following is the power resource mineral? A. Iron ore B. Limestone C. Coal D. Copper

Description : Which of the following is the power resource mineral? A. Iron ore B. Limestone C. Coal D. Copper

Last Answer : ANSWER: C

Which of the following is a renewable resource? (1) Coal (2) Mineral oil (3) Natural gas (4) Forests

Description : Which of the following is a renewable resource? (1) Coal (2) Mineral oil (3) Natural gas (4) Forests

Last Answer : (4) Forests Explanation: Forest is a renewable resource.