The reduction ratio for fine grinders is
(A) 5-10
(B) 10-20
(C) 20-40
(D) As high as 100

1 Answer

Answer :

(D) As high as 100

Related questions

Description : The reduction ratio for grinders is defined as (where, Df and Dp are average diameters of feed and product respectively). (A) Df /Dp (B) Dp /Df (C) Df - Dp (D) None of these

Last Answer : (A) Df /Dp

Description : The main size reduction operation in ultrafine grinders is (A) Cutting (B) Attrition (C) Compression (D) Impact

Last Answer : (B) Attrition

Description : In a size reduction crushing operation, feed size is 100 to 300 mm. while the product size is 10 to 50 mm. This is a case of the __________ crushing. (A) Primary (B) Secondary (C) Fine (D) Ultrafine

Last Answer : (B) Secondary

Description : In a size reduction crushing operation, feed size is 300 to 1500 mm while the product size is 100 to 300 mm. This is a case of the __________ crushing. (A) Secondary (B) Fine (C) Primary (D) Ultrafine

Last Answer : (C) Primary

Description : Ultrafine grinders operate principally by (A) Slow compression (B) Impact (C) Attrition (D) Cutting action

Last Answer : (C) Attrition

Description : Determine the ratio of the number of people having characteristic X to the number of people having characteristic Y in a population of 100 subjects from the following table People having X and Y are 20 People having X but not Y are 10 ... 3 : 5 b) 3 : 2 c) 1 : 2 d) 2 : 3 e) None of these

Last Answer : Answer: A Number of people having characteristic X = 10 + 20 = 30 Number of people having characteristic Y = 20 + 30 = 50 Therefore Required ratio = 30 : 50 = 3 : 5

Description : In a size reduction crushing operation, the feed size is 10 to 50 mm, while the product size is 2 to 10 mm. This is a case of __________ crushing. (A) Primary (B) Secondary (C) Fine

Last Answer : (C) Fine

Description : Percent reduction in grain yield of transplanted rice due to weeds is a). 20-40 b).10-30 c).15-20 d).15-45

Last Answer : d).15-45

Description : If 50 kg of fine aggregates and 100 kg of coarse aggregates are mixed in a concrete whose water cement ratio is 0.6, the weight of water required for harsh mix, is (A) 8 kg (B) 10 kg (C) 12 kg (D) 14 kg

Last Answer : Answer: Option C

Description : How does manure get into the meat at slaughterhouses and meat grinders?

Last Answer : The stomachs and intestines of the animals were not cleaned thoroughly.

Description : Electric Meat Grinders for Homemade Advantage?

Last Answer : Electric meat grinders are becoming more popular with homecooks. They can be messy and time consuming, but there are manyadvantages to using an electric meat grinder. Grinding meat at homeproduces a fresher ... the same principle. Food goes into a hopperlocated on the top of the grinder. It then

Description : What is the difference between a conical burr grinder and other coffee grinders?

Last Answer : The reason coffee generally tastes better when produced from conical burr grinders is due in part to the conical burr being able to grind coffee beans at much slower speeds. The theory behind this is ... results in a greater amount of heat being emitted that can comprise the perfect cup of coffee.

Description : How much are Capresso conical burr grinders?

Last Answer : On sale through Amazon.com, the Capresso conical burr grinder only costs around $85. The normal price of the grinder is $125 when it's not on sale.

Description : What kind of pepper do you use in pepper grinders?

Last Answer : Usually the best kind is the coarse pepper that are round balls. They have not been shredded yet into tiny pieces.

Description : Are pepper grinders better than buying pepper that's already ground?

Last Answer : The answer to that is buy the pepper mill. Fresh cracked pepper is so good you will never go back to using the other stuff again. I hope this helps and good luck.

Description : What kind of motors used in ceiling fan and wet grinders?

Last Answer : Ceiling fan # Capacitor start and capacitor run single phase induction motor, wet grinders# Capacitor start capacitor run single phase induction motor.

Description : what is the type of induction motor used in wet grinders?

Last Answer : Capacitor start capacitor run single-phase induction motor.

Description : State suitable single phase motor for following applications: (i) Table fan (ii) Mixers and Grinders

Last Answer : Application Suitable Single Phase Motor Table Fan 1) Capacitor split phase motor 2) Capacitor start capacitor run motor Mixers and Grinders 1) Universal motor 2) A.C. Series motor

Description : A well is sunk in an unconfined aquifer having a saturated depth of 100 m. Assuming the equilibrium flow conditions and a homogeneous aquifer and radius of influence to be same, the ratio of discharges at 20 m and 40 m draw downs, is (A) 2/3 (B) 5/4 (C) 4/5 (D) 8/7

Last Answer : Answer: Option D

Description : Which of the following terminology is not used for size reduction of materials to fine sizes or powders? (A) Comminution (B) Dispersion (C) Pulverisation (D) Compression

Last Answer : (D) Compression

Description : General mechanism of size reduction in intermediate and fine grinder is by (A) Cutting action (B) Compression (C) Compression and tearing (D) Impact and attrition

Last Answer : (D) Impact and attrition

Description : In case of imprisonment for non-payment of fine, if a part of the fine is paid, such  sentence (a) Shall be reduced proportionately (b) Shall not be reduced in direct proportion to the fine paid ( ... subject to the discretion of the court as to the quantum of  reduction (d) All of the above.

Last Answer : (a) Shall be reduced proportionately

Description : Assume that a program will experience 200 failures in infinite time. It has now experienced 100 failures. The initial failure intensity was 20 failures/CPU hr. Then the current failure intensity will be (A) 5 failures/CPU hr (B) 10 failures/CPU hr. (C) 20 failures/CPU hr. (D) 40 failures/CPU hr.

Last Answer : (B) 10 failures/CPU hr.

Description : The sum of the ages of two persons A and B is 50. 5 years ago, the ratio of their ages was 5/3. The present age of A and B are (A) 30, 20 (B) 35, 15 (C) 38, 12 (D) 40, 10

Last Answer : Answer: A

Description : A student was once given a simple task to accomplish. He was given 6 numbers: 1, 10, 20, 30, 40, and 80, and was told to sum them together to be equal to 100. At last, he was able to accomplish this task. How did he do it? -Riddles

Last Answer : He read 10 and 80 backwards to give him 01 and 08 respectively. So, 1 + 01 + 20 + 30 + 40 + 08 = 100.

Description : The draft of ‘Victory plough’ is— (A) 80-100 kg (B) 40-50 kg(C) 70-80 kg (D) 10-20 kg

Last Answer : (A) 80-100 kg

Description : Calculate the power of a material with electric field 100 units at a distance of 10cm with a current of 2A flowing through it. a) 10 b) 20 c) 40 d) 80

Last Answer : b) 20

Description : The size of a single plant cell is usually within the range of A.10-20μm in diameter and 25-100μm long B.20-40μm in diameter and 100-200μm long C.40-60μm in diameter and 200-300μm long D.60-80μm in diameter and 300-400μm long

Last Answer : B.20-40μm in diameter and 100-200μm long

Description : The size of a single plant cell is usually within the range of A.10-20μm in diameter and 25-100μm long B.20-40μm in diameter and 100-200μm long C.40-60μm in diameter and 200-300μm long D.60-80μm in diameter and 300-400μm long

Last Answer : B.20-40μm in diameter and 100-200μm long

Description : A normally consolidated clay settled 10 mm when effective stress was increased from 100 kN/m² to 200 kN/m². If the effective stress is further increased from 200 kN/m² to 400 kN/m², then the settlement of the same clay is (A) 10 mm (B) 20 mm (C) 40 mm (D) None of the above

Last Answer : (A) 10 mm

Description : two persons a and b each of weight 500 n climb up a rope through a height of 10 m . a takes 20 s while b takes 40 s to achieve this task . what is the ratio of powers of a and b ? -Physics 9th

Last Answer : The ratio of powers of A and B = 2: 1 Explanation : Where , Fa = 500N S = 10m Fb = 500N ta = 20s , tb = 40s

Description : Two army persons A and B each of weight of 500 N climb up a rope through a height of 10 m. A takes 20 s while B takes 40 s to achieve this task. What is ratio of the powers of person A and B? -Physics

Last Answer : The ratio of powers of A and B = 2: 1 Explanation : Where , Fa = 500N S = 10m Fb = 500N ta = 20s , tb = 40s Image solution

Description : At pH 7.4, the ratio of bicarbonate : dissolved CO2 is (A) 1 : 1 (B) 10 : 1 (C) 20 : 1 (D) 40 : 1

Last Answer : Answer : C

Description : At the pH of blood 7.4, the ratio between the carbonic acid and bicarbonate fractions is (A) 1 : 10 (B) 1 : 20 (C) 1 : 30 (D) 1 : 40

Last Answer : Answer : B

Description : What signal-to-noise ratio is required for satisfactory television reception? A. 10 dB B. 30 dB C. 40 dB D. 20 dB

Last Answer : C. 40 dB

Description : The signal to noise ratio that is required for a satisfactory television reception. A. 30 dB B. 40 dB C. 10 dB D. 20 dB

Last Answer : B. 40 dB

Description : The slenderness ratio for masonry walls should not be more than (A) 10 (B) 20 (C) 30 (D) 40

Last Answer : Answer: Option B

Description : Nandhu is 80years old and Nalini is 90 years old. How many years ago was the ratio of their ages 8 : 10? a) 40 years b) 35 years c) 20 years d) 25 years

Last Answer : A Let us assume x years ago At present: Nandhu is 80 years and Nalini is 90 years x years ago: Nandhu's age = (80 - x) and Nalini's age = (90 - x) Ratio of their ages x years ago was 8 : 10 ... 800-10x =720-8x 2x=80 x=40 Therefore, 40 years ago, the ratio of their ages was 8:10

Description : To avoid fire by spontaneous combustion of coal due to its low temperature oxidation, it should be stored in (A) Shallow and small piles (B) Fine sizes without the presence of any lump (C) Closed space without any ventilation facility (D) Large heaps with small surface to volume ratio

Last Answer : (A) Shallow and small piles

Description : Minimum thickness of a layer of fine sand required to cut off capillary rise of water completely, should be (A) 40 cm (B) 52 cm (C) 64 cm (D) 76 cm

Last Answer : Answer: Option D

Description : Suppose d = { john :40, peter :45}, what happens when we try to retrieve a value using the expression d[ susan ]? a) Since susan is not a value in the set, Python raises a KeyError ... Python raises a KeyError exception d) Since susan is not a key in the set, Python raises a syntax error

Last Answer : c) Since “susan” is not a key in the set, Python raises a KeyError exception

Description : Carlos is pulling a 40 kilogram cart with a horizontal force of 100 newtons. The force of friction on the cart is 20 newtons. The acceleration of the cart is: w) 2 meters per second squared x) 2.5 meters per second squared y) 20 meters per second squared z) 200 meters per second squared

Last Answer : ANSWER: W -- 2 METERS PER SECOND SQUARED

Description : What is the front-to-back ratio of an antenna which radiates 500 watts in a northernly direction and 50 watts in a southernly direction? A. 25000 dB B. 10 dB C. 100 dB D. 20 dB

Last Answer : B. 10 dB

Description : The C: N ratio of humus is (A) 20: 1 (B) 100: 1 (C) 10: 1 (D) 400:1

Last Answer : (C) 10: 1

Description : The C: N ratio of humus is (A) 20: 1 (B) 100: 1 (C) 10: 1 (D) 400:1

Last Answer : (C) 10: 1

Description : From a vessel containing 100 litres of wine,10 litres are drawn out and an equal amount of water is added. From the mixture,10 litres is again drawn out and same quantity of water is added. What is the final ratio of wine and water? a) 91 : 9 b) 81 : 19 c) 80 : 20 d) 90 : 10 e) None of these

Last Answer : Quantity of wine after two replacements = 100 l × (90/100)2 =81 l Required ratio = 81 : ( 100 – 81 )= 81 : 19 Answer: b)

Description : The sum of the squares between three numbers is 5000. The ratio between the first and the second number is 3:4 and that of second and third number is 4:5. Find the difference between first and the third number. A) 20 B) 30 C) 40 D) 50 E) None of these

Last Answer : Answer: A a^2 + b^2 + c^2 = 5000 a:b:c = 3:4:5 50x^2 = 5000. X = 10. 5x – 3x = 2*10 = 20

Description : Find the ratio in which Nuts at Rs. 5.40 a kg be mixed with Nuts at Rs. 3.20 a kg to produce a mixture worth Rs. 4.60 a kg. a) 9:2 b) 2:3 c) 4:3 d) 3:2 e) 7:4

Last Answer : E By the rule of allegation  Required ratio = 140 : 80  = 7:4

Description : Smaller tension ratio result in.... (a) Unnecessary high tension in belt (b) Reduction in belt life (c) Both (c) & (b) (d) Excessive belt slippage

Last Answer : (c) Both (c) & (b)

Description : 310- Larger tension ratio result in... (a) Unnecessary high tension in belt (b) Reduction in belt life (c) Excessive belt slippage (d) Increase belt life

Last Answer : (c) Excessive belt slippage