Higher is the mesh number, smaller will be the aperture size of the screen. It means that the aperture size of a 200 mesh screen will be smaller than that of 20 mesh screen. This is valid for(A) British standard screens(B) German standard screens (DIN 1171) etc(C) American standard screens (ASTM and Tyler standard screens)(D) All (A), (B) and (C)

Higher is the mesh number, smaller will be the aperture size of the
screen. It means that the aperture size of a 200 mesh screen will be smaller
than that of 20 mesh screen. This is valid for
(A) British standard screens
(B) German standard screens (DIN 1171) etc
(C) American standard screens (ASTM and Tyler standard screens)
(D) All (A), (B) and (C)
by

1 Answer

Answer :

(D) All (A), (B) and (C)
by

Related questions

or Indian standard (IS) screens, the mesh number is equal to its aperture size expressed to the nearest deca-micron (0.01 mm). Aperture width of IS screen of mesh number 50 will be approximately __________ microns. (A) 5 (B) 50 (C) 500 (D) 5000

Description : or Indian standard (IS) screens, the mesh number is equal to its aperture size expressed to the nearest deca-micron (0.01 mm). Aperture width of IS screen of mesh number 50 will be approximately __________ microns. (A) 5 (B) 50 (C) 500 (D) 5000

Last Answer : (C) 500

Pick out the wrong statement. (A) Hammer crushers operate by impact action (B) Standard screens have circular opening (C) With increase in mesh number of screens, their diameter in microns decreases (D) 200 mesh screen has 200 openings per linear cm

Description : Pick out the wrong statement. (A) Hammer crushers operate by impact action (B) Standard screens have circular opening (C) With increase in mesh number of screens, their diameter in microns decreases (D) 200 mesh screen has 200 openings per linear cm

Last Answer : (D) 200 mesh screen has 200 openings per linear cm

64-132) rank coal (ASTM) means a coal with 64% (A) Fixed carbon and having a heating value around 13, 200 BTU/1b (B) Ash and heating value around 13, 200 BTU/1b (C) Fixed carbon and heating value around 132 BTU/1b (D) None of these

Description : 64-132) rank coal (ASTM) means a coal with 64% (A) Fixed carbon and having a heating value around 13, 200 BTU/1b (B) Ash and heating value around 13, 200 BTU/1b (C) Fixed carbon and heating value around 132 BTU/1b (D) None of these

Last Answer : (A) Fixed carbon and having a heating value around 13, 200 BTU/1b

64-132) rank coal (ASTM) means a coal with 64% (A) Fixed carbon and having a heat value of 13, 200 BTU/1b (B) Ash and a heating value of 13, 200 BTU/1b (C) Fixed carbon and a heating value of 132 BTU/1b (D) None of these

Description : 64-132) rank coal (ASTM) means a coal with 64% (A) Fixed carbon and having a heat value of 13, 200 BTU/1b (B) Ash and a heating value of 13, 200 BTU/1b (C) Fixed carbon and a heating value of 132 BTU/1b (D) None of these

Last Answer : (A) Fixed carbon and having a heat value of 13, 200 BTU/1b

What is the full form of ASTM? a. American Society for Testing and Materials b. American Standards for Textile Matters c. Association for standardizing testing methods d. Association of Standard Textile Manufacturers

Description : What is the full form of ASTM? a. American Society for Testing and Materials b. American Standards for Textile Matters c. Association for standardizing testing methods d. Association of Standard Textile Manufacturers

Last Answer : a. American Society for Testing and Materials

Vibrating screens have capacity in the range of __________ tons/ft 2 .mm mesh size. (A) 0.2 to 0.8 (B) 5 to 25 (C) 50 to 100 (D) 100 to 250

Description : Vibrating screens have capacity in the range of __________ tons/ft 2 .mm mesh size. (A) 0.2 to 0.8 (B) 5 to 25 (C) 50 to 100 (D) 100 to 250

Last Answer : (A) 0.2 to 0.8

Reciprocating screens are normally inclined at an angle of 5° with the horizontal and employ gyratory motion at feed end & reciprocating motion at the discharge end. They are not suitable for the screening of the (A) Light metal powder down upto 4 mesh size (B) Dry chemicals (C) Heavy tonnages of rocks or gravel (D) Powdered food & granular materials

Description : Reciprocating screens are normally inclined at an angle of 5° with the horizontal and employ gyratory motion at feed end & reciprocating motion at the discharge end. They are not suitable for the ... Dry chemicals (C) Heavy tonnages of rocks or gravel (D) Powdered food & granular materials

Last Answer : (C) Heavy tonnages of rocks or gravel

200 mesh screen means 200 openings per (A) cm2 (B) cm (C) inch (D) inch

Description : 200 mesh screen means 200 openings per (A) cm2 (B) cm (C) inch (D) inch

Last Answer : (C) inch

Pick out the correct statement. (A) Plastic chips are called non-cohesive solids (B) Kick's crushing law is, P/m = K . ln (D̅sa /Ds̅b ) (C) Communition is a generic term for size enlargement operation (D) Energy required in kwh per ton of product, such that 80% of it passes through a 200 mesh screen, is called 'Work index'

Description : Pick out the correct statement. (A) Plastic chips are called non-cohesive solids (B) Kick's crushing law is, P/m = K . ln (D̅sa /Ds̅b ) (C) Communition is a generic term for size enlargement ... per ton of product, such that 80% of it passes through a 200 mesh screen, is called 'Work index'

Last Answer : (B) Kick's crushing law is, P/m = K . ln (D̅sa /Ds̅b )

Work index is defined as the (A) Gross energy (kWh/ton of feed) needed to reduce very large feed to such a size that 80% of the product passes through a 100 micron screen (B) Energy needed to crush one tonne of feed to 200 microns (C) Energy (kWh/ton of feed) needed to crush small feed to such a size that 80% of the product passes a 200 mesh screen (D) Energy needed to crush one ton of feed to 100 microns

Description : Work index is defined as the (A) Gross energy (kWh/ton of feed) needed to reduce very large feed to such a size that 80% of the product passes through a 100 micron screen (B) Energy needed to crush ... of the product passes a 200 mesh screen (D) Energy needed to crush one ton of feed to 100 microns

Last Answer : (A) Gross energy (kWh/ton of feed) needed to reduce very large feed to such a size that 80% of the product passes through a 100 micron screen

The ratio of the actual mesh dimension of Taylor series to that of the next smaller screen is (A) 2 (B) √2 (C) 1.5 (D) √3

Description : The ratio of the actual mesh dimension of Taylor series to that of the next smaller screen is (A) 2 (B) √2 (C) 1.5 (D) √3

Last Answer : (B) √2

Pulverised coal passing through 200 mesh screen has a diameter of 0.074 mm (74 micron). The same passing through 50 mesh screen will have a dia of __________ mm. (A) 0.007 (B) 0.30 (C) 50 (D) 0.014

Description : Pulverised coal passing through 200 mesh screen has a diameter of 0.074 mm (74 micron). The same passing through 50 mesh screen will have a dia of __________ mm. (A) 0.007 (B) 0.30 (C) 50 (D) 0.014

Last Answer : (B) 0.30

The opening of a 200 mesh screen (Taylor series) is (A) 0.0074 cm (B) 0.0074 mm (C) 0.0047 cm (D) 74 milli-micron

Description : The opening of a 200 mesh screen (Taylor series) is (A) 0.0074 cm (B) 0.0074 mm (C) 0.0047 cm (D) 74 milli-micron

Last Answer : (A) 0.0074 cm

In screen analysis, the notation +5 mm/-10 mm means particles passing through (A) 10 mm screen and retained on 5 mm screen (B) 5 mm screen and retained on 10 mm screen (C) Both 5 mm and 10 mm screens (D) Neither 5 mm nor 10 mm screen

Description : In screen analysis, the notation +5 mm/-10 mm means particles passing through (A) 10 mm screen and retained on 5 mm screen (B) 5 mm screen and retained on 10 mm screen (C) Both 5 mm and 10 mm screens (D) Neither 5 mm nor 10 mm screen

Last Answer : (A) 10 mm screen and retained on 5 mm screen

A sand mixture was screened through a standard 10-mesh screen. The mass fraction of the oversize material in feed, overflow and underflow were found to be 0.38, 0.79 and 0.22 respectively. The screen effectiveness based on the oversize is (A) 0.50 (B) 0.58 (C) 0.68 (D) 0.62

Description : A sand mixture was screened through a standard 10-mesh screen. The mass fraction of the oversize material in feed, overflow and underflow were found to be 0.38, 0.79 and 0.22 respectively. The screen effectiveness based on the oversize is (A) 0.50 (B) 0.58 (C) 0.68 (D) 0.62

Last Answer : (A) 0.50

80% less than 200 mesh size particles are called (A) Smoke (B) Powder (C) Grit (D) Aggregates

Description : 80% less than 200 mesh size particles are called (A) Smoke (B) Powder (C) Grit (D) Aggregates

Last Answer : (B) Powder

Which of the following gives the work required for size reduction of coal to -200 mesh in a ball mill most accurately? (A) Rittinger's law (B) Kick's law (C) Bond's law (D) None of these

Description : Which of the following gives the work required for size reduction of coal to -200 mesh in a ball mill most accurately? (A) Rittinger's law (B) Kick's law (C) Bond's law (D) None of these

Last Answer : (A) Rittinger's law

200 mesh sieve size corresponds to __________ microns. (A) 24 (B) 74 (C) 154 (D) 200

Description : 200 mesh sieve size corresponds to __________ microns. (A) 24 (B) 74 (C) 154 (D) 200

Last Answer : (B) 74

Bucket elevators are not suitable for the vertical lifting of __________ materials. (A) Fine (e.g. - 200 mesh size coal) (B) Sticky (e.g. clay paste) (C) Small lumpy (e.g. grains and sand) (D) Free flowing

Description : Bucket elevators are not suitable for the vertical lifting of __________ materials. (A) Fine (e.g. - 200 mesh size coal) (B) Sticky (e.g. clay paste) (C) Small lumpy (e.g. grains and sand) (D) Free flowing

Last Answer : (B) Sticky (e.g. clay paste

The most suitable equipment for the transportation of 200 mesh size particles is a (A) Bucket elevator (B) Pneumatic conveyor (C) Screw conveyor (D) Belt conveyor

Description : The most suitable equipment for the transportation of 200 mesh size particles is a (A) Bucket elevator (B) Pneumatic conveyor (C) Screw conveyor (D) Belt conveyor

Last Answer : (B) Pneumatic conveyor

Coal is finally pulverised to 200 mesh size for burning in boilers by a (A) Hammer crusher(B) Ball mill(C) Roll crusher(D) Gyratory crusher

Description : Coal is finally pulverised to 200 mesh size for burning in boilers by a (A) Hammer crusher (B) Ball mill (C) Roll crusher (D) Gyratory crusher

Last Answer : (B) Ball mill

Screen capacity is proportional to (where, S = screen aperture) (A) S (B) 1/S (C) S 2 (D) √S

Description : Screen capacity is proportional to (where, S = screen aperture) (A) S (B) 1/S (C) S 2 (D) √S

Last Answer : (A) S

Which of the following screens has the maximum capacity? (A) Grizzlies (B) Trommels (C) Shaking screen (D) Vibrating screen

Description : Which of the following screens has the maximum capacity? (A) Grizzlies (B) Trommels (C) Shaking screen (D) Vibrating screen

Last Answer : (D) Vibrating screen

With increase in the capacity of screens, the screen effectiveness (A) Remains unchanged (B) Increases (C) Decreases (D) Decreases exponentially

Description : With increase in the capacity of screens, the screen effectiveness (A) Remains unchanged (B) Increases (C) Decreases (D) Decreases exponentially

Last Answer : (C) Decreases

What is Christopher Marlowe’s Nationality? A. British B. German C. Dutch D. American

Description : What is Christopher Marlowe’s Nationality? A. British B. German C. Dutch D. American

Last Answer : British

For solving an assignment problem, which method is used? a. British b. American c. German d. None of the above

Description : For solving an assignment problem, which method is used? a. British b. American c. German d. None of the above

Last Answer : B. american

........................... method is used to solve an assignment problem. a. American method b. Hungarian method c. German method d. British method

Description : ........................... method is used to solve an assignment problem. a. American method b. Hungarian method c. German method d. British method

Last Answer : b. Hungarian method

The Verstehen School of Understanding was popularised by (A) German Social Scientists (B) American Philosophers (C) British Academicians (D) Italian Political Analysts

Description : The Verstehen School of Understanding was popularised by (A) German Social Scientists (B) American Philosophers (C) British Academicians (D) Italian Political Analysts

Last Answer : (A) German Social Scientists

When the patient tells the nurse that his vision is 20/200, and asks what that means, the nurse informs the patient that a person with 20/200 vision a) sees an object from 20 feet away that a person with normal vision sees from 200 feet away. The fraction 20/20 is considered the standard of normal vision.

Description : When the patient tells the nurse that his vision is 20/200, and asks what that means, the nurse informs the patient that a person with 20/200 vision a) sees an object from 20 feet away that a person ... 20/20 line, the person of normal vision will be standing at a distance of 20 feet from the chart.

Last Answer : a) sees an object from 20 feet away that a person with normal vision sees from 200 feet away. The fraction 20/20 is considered the standard of normal vision.

Vibrating screens are used for handling large tonnages of materials. The vibrating motion is imparted to the screening surface by means of (A) Electromagnets (B) Cams or eccentric shafts (C) Unbalanced flywheels (D) Either (A), (B) or (C)

Description : Vibrating screens are used for handling large tonnages of materials. The vibrating motion is imparted to the screening surface by means of (A) Electromagnets (B) Cams or eccentric shafts (C) Unbalanced flywheels (D) Either (A), (B) or (C)

Last Answer : (D) Either (A), (B) or (C)

Pick out the correct statement. (A) The capacity and the effectiveness of a screen are the same (B) The capacity and the effectiveness of screen are opposing factors (C) The screening surface of a 'reel' (a revolving screen used in flour mills) is made of silk bolting cloth supported by wire mesh (D) Both (B) and (C)

Description : Pick out the correct statement. (A) The capacity and the effectiveness of a screen are the same (B) The capacity and the effectiveness of screen are opposing factors (C) The screening surface of a 'reel' (a ... flour mills) is made of silk bolting cloth supported by wire mesh (D) Both (B) and (C)

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

Photographers: Do you like slower shutter speed with a higher aperture number or the other way around?

Description : Photographers: Do you like slower shutter speed with a higher aperture number or the other way around?

Last Answer : It totally depends on what you're shooting and why. If you're shooting sports, or wildlife, you're going to want a fast lens with a short shutter speed. If you want landscape with a higher depth of ... with a slower shutter speed. If you're doing portraits, it doesn't matter as much as the lighting.

Diffraction due to circular aperture If a light passes through a small pinhole, and incident on a screen. What will be observed on the screen? A.A sharp bright point of the width equal to width the pinhole B. A bright point of the width equal to width the pinhole but of less intensity C. A bright ring at the centre surrounded by alternate dark and bright rings D. A diffused bright point

Description : Diffraction due to circular aperture If a light passes through a small pinhole, and incident on a screen. What will be observed on the screen? A.A sharp bright point of the width equal to ... A bright ring at the centre surrounded by alternate dark and bright rings D. A diffused bright point

Last Answer : C. A bright ring at the centre surrounded by alternate dark and bright rings

Do you follow the advice to turn off blue light on your screen or just stop using screens before bedtime?

Description : Do you follow the advice to turn off blue light on your screen or just stop using screens before bedtime?

Last Answer : Wow, I didn’t know that was an option! I’m such a poor sleeper that I turn off the screens at least an hour before bed.

Is it better to work with two computer screens simultaneously or only one screen of 30 inches?

Description : Is it better to work with two computer screens simultaneously or only one screen of 30 inches?

Last Answer : answer:Both screens will probably have the same(or simmilar) resolution regardless of size so with a bigger screen you won't actually get that much more viewing space it wll just mean everything is bigger. I ... two screens (well actually I'd have six screen eyefinity set up if I could afford it).

Is anyone else bothered by commercials for televisions purporting to show how great the competition's screens are through your own television screen?

Description : Is anyone else bothered by commercials for televisions purporting to show how great the competition's screens are through your own television screen?

Last Answer : Pretty stupid, I guess.

Surface preparation for Metallising the abrasives used for final cleaning is a) Chilled iron grit G.24, as defined in BS : 2451 b) Washed salt free angular silica sand of mesh size 12 to 30 with a minimum of 40% retained on a 20 mesh c) either (a) or (b) * d) d) neither (a) or (b)

Description : Surface preparation for Metallising the abrasives used for final cleaning is a) Chilled iron grit G.24, as defined in BS : 2451 b) Washed salt free angular silica sand of mesh size 12 to 30 with a minimum of 40% retained on a 20 mesh c) either (a) or (b) * d) d) neither (a) or (b)

Last Answer : c) either (a) or (b) *

MacBooks: are matte screens still available on all models (Pro, Air, and standard) as a special order?

Description : MacBooks: are matte screens still available on all models (Pro, Air, and standard) as a special order?

Last Answer : Matte screens are still available on the 15 and 17 inch MacBook Pros. Not on the air and the Macbook has been discontinued.

Pick out the wrong statement: (A) Magnetic separation method can be employed to treat both dry & wet ores (B) Reduction ratio in crushing operation is defined as the ratio of minimum feed size to the maximum product size (C) Gyratory crusher is used for coarse crushing (D) Screens are of stationary, moving and vibratory types

Description : Pick out the wrong statement: (A) Magnetic separation method can be employed to treat both dry & wet ores (B) Reduction ratio in crushing operation is defined as the ratio of minimum feed ... ) Gyratory crusher is used for coarse crushing (D) Screens are of stationary, moving and vibratory types

Last Answer : (B) Reduction ratio in crushing operation is defined as the ratio of minimum feed size to the maximum product size

Durand Line Treaty was signed by a British man Durand and King of Afghanistan ______ in 1893 A. Amir Aman Ullah B. Abdul Rehman C. Noor Ahmad D. Zaheer-ud-Din Babur

Description : Durand Line Treaty was signed by a British man Durand and King of Afghanistan ______ in 1893 A. Amir Aman Ullah B. Abdul Rehman C. Noor Ahmad D. Zaheer-ud-Din Babur

Last Answer : ANSWER: B

Durand Line Treaty was signed by a British man Durand and King of Afghanistan ______ in 1893 A. Amir Aman Ullah B. Abdul Rehman C. Noor Ahmad D. Zaheer-ud-Din Babur

Description : Durand Line Treaty was signed by a British man Durand and King of Afghanistan ______ in 1893 A. Amir Aman Ullah B. Abdul Rehman C. Noor Ahmad D. Zaheer-ud-Din Babur

Last Answer : ANSWER: B

Durand Line Treaty was signed by a British man Durand and King of Afghanistan ______ in 1893 A. Amir Aman Ullah B. Abdul Rehman C. Noor Ahmad D. Zaheer-ud-Din Babur 4

Description : Durand Line Treaty was signed by a British man Durand and King of Afghanistan ______ in 1893 A. Amir Aman Ullah B. Abdul Rehman C. Noor Ahmad D. Zaheer-ud-Din Babur 4

Last Answer : ANSWER: B

Trommels are revolving screens which normally operate in the range of __________ rpm. (A) 1 - 2 (B) 15 - 20 (C) 40 - 50 (D) 60 - 75

Description : Trommels are revolving screens which normally operate in the range of __________ rpm. (A) 1 - 2 (B) 15 - 20 (C) 40 - 50 (D) 60 - 75

Last Answer : (B) 15 - 20

The number of modes propagated in a multimode fiber depends on core size and numerical aperture (NA). If the core size and the NA decrease, will the number of modes propagated increase or decrease?

Description : The number of modes propagated in a multimode fiber depends on core size and numerical aperture (NA). If the core size and the NA decrease, will the number of modes propagated increase or decrease?

Last Answer : Decrease.

Compared to Chlorine, Bromine has: w) smaller atomic size x) higher density y) lower boiling point z) greater number of outer electrons

Description : Compared to Chlorine, Bromine has: w) smaller atomic size x) higher density y) lower boiling point z) greater number of outer electrons

Last Answer : ANSWER: X -- HIGHER DENSITY

Pick out the wrong statement. (A) Nitrogen is normally supplied in fertiliser either in Ammoniacal or the nitrate form, from which the soil takes it up in the form of ammonium ions ornitrate ions and forms amino acids(B) Calcium present in the fertiliser helps in correcting the soil acidity(C) Particle size range of a good granular fertiliser is 10-15 mesh and itcontains less moisture as compared to finely divided powder form of fertiliser(D) Ammonium nitrate fertiliser is obtained as a by-product in an integratedsteel plant having by-product coke ovens

Description : Pick out the wrong statement. (A) Nitrogen is normally supplied in fertiliser either in Ammoniacal or the nitrate form, from which the soil takes it up in the form of ammonium ions ornitrate ... nitrate fertiliser is obtained as a by-product in an integrated steel plant having by-product coke ovens

Last Answer : (D) Ammonium nitrate fertiliser is obtained as a by-product in an integrated steel plant having by-product coke ovens

Which one of the following determines the sharpness of image in a camera? (1) The aperture (2) The exposure time (3) The focal length of the lens (4) Size of the camera

Description : Which one of the following determines the sharpness of image in a camera? (1) The aperture (2) The exposure time (3) The focal length of the lens (4) Size of the camera

Last Answer : (1) The aperture Explanation: Image quality is a characteristic of an image that measures the perceived image degradation (typically, compared to an ideal or perfect image). Imaging systems may ... assessment is an important problem. Sharpness determines the amount of detail an image can convey.

Which one of the following determines the sharpness of image in a camera ? (1) The aperture (2) The exposure time (3) The focal length of the lens (4) Size of the camera

Description : Which one of the following determines the sharpness of image in a camera ? (1) The aperture (2) The exposure time (3) The focal length of the lens (4) Size of the camera

Last Answer : The aperture

What size screens are available in LCD tvs from Sanyo?

Description : What size screens are available in LCD tvs from Sanyo?

Last Answer : Sanyo has a number of screen sizes for their LCD tvs. Sanyo LCD's range in size from their compact 18" HDTV to their 55" HDTV. Of course, the size of your room should determine the size of the TV you get. You don't want the TV to overpower the room.

Pick up the incorrect statement from the following: (A) The smaller the size of the pores, the higher the water can rise above the water table (B) Below the water table, the pore water may be static (C) The hydrostatic pressure depends on the depth below the water level (D) None of these

Description : Pick up the incorrect statement from the following: (A) The smaller the size of the pores, the higher the water can rise above the water table (B) Below the water table, the pore water may be static (C) The hydrostatic pressure depends on the depth below the water level (D) None of these

Last Answer : Answer: Option D