Description : Which of the following gives the crushing energy required to create new surface ? (A) Taggarts rule (B) Fick's law (C) Rittinger's Law (D) None of these
Last Answer : (C) Rittinger's Law
Description : Bond crushing law (A) Calls for relatively less energy for the smaller product particles, than does the Rittinger law (B) Is less realistic in estimating the power requirements of commercial crushers ( ... (D) States that the work required for the crushing is proportional to the new surface created
Last Answer : (A) Calls for relatively less energy for the smaller product particles, than does the Rittinger law
Description : __________ is concerned with the adsorption equilibria. (A) Fick's law (B) Gibb's equation (C) Freundlich equation (D) None of these
Last Answer : (C) Freundlich equation
Description : The equation, NA = (DAB . Pt /RTZ . PBM) (PA1 - PA2 ) is for (A) Fick's second law of diffusion (B) Steady state diffusion for stagnant case (C) Liquid M.T.C. by Higbie penetration theory (D) None of these
Last Answer : (B) Steady state diffusion for stagnant case
Description : Convective heat transfer, in which heat is transferred by movement of warmed matter is described by (A) Fourier's law (B) Newton's law of cooling (C) Fick's law (D) None of these
Last Answer : (B) Newton's law of cooling
Description : According to Bond crushing law, the work required to form particle of size 'D' from very large feed is (where (S/V)p and (S/V) f are surface to volume ratio of the product and feed respectively). (A) (S/V)p (B) √(S/V)p (C) (S/V) 2 p (D) (S/V) f
Last Answer : (B) √(S/V)
Description : Rittinger's crushing law states that (A) Work required to form a particle of any size is proportional to the square of the surface to volume ratio of the product (B) Work required to form a ... ) For a given machine and feed, crushing efficiency is dependent on the size of the feed & product
Last Answer : (C) Work required in crushing is proportional to the new surface created
Description : 'Gresham's Law' in Economics relates to (1) supply and demand (2) circulation of currency (3) consumption of supply (4) distribution of goods and services
Last Answer : (2) circulation of currency Explanation: Gresham's law is an economic principle that states: "When a government compulsorily overvalues one type of money and undervalues another, the undervalued money will leave ... will flood into circulation." It is commonly stated as: "Bad money drives out good."
Description : Energy consumption in a crusher decreases with increase in the (A) Size of the product (at constant feed size) (B) Capacity of the crushing machine (C) Size of feed (at constant reduction ratio) (D) All (A), (B) & (C)
Last Answer : (D) All (A), (B) & (C)
Description : Pick out the wrong statement. (A) Gape is the greatest distance between the crushing surfaces or the jaws (B) The angle of nip (2α) is the angle between roll faces at the level where they will ... Reduction ratio is the ratio of the maximum size of the particles in the feed to that in the product
Last Answer : (C) Crushing efficiency is the ratio of the energy absorbed by the solid to the surfaces energy created by crushing
Description : 64. For any company, energy consumption mostly relates to…….. a) Profits b) Inventory c) Production d) All the above
Last Answer : Production
Description : In case of a hammer crusher, the final product size depends on the (A) Feed rate (B) Rotor speed (C) Clearance between hammer & grinding plates (D) All (A), (B) and (C
Last Answer : (D) All (A), (B) and (C
Description : Sepsis causes a marked metabolic response. Which of the following statement(s) is/are true concerning the metabolic response to sepsis? a. Oxygen consumption is increased in the face of infection ... d. The extent of increase in oxygen consumption relates to the severity of the infection
Last Answer : Answer: a, c, d Oxygen consumption is usually elevated in the infected patient. The extent of this increase is related to the severity of the infection, with peak elevations reaching 50% ... suggest that the metabolic rate increases 10% to 13% for each elevation of 1°C in central temperature
Description : The value of investment multiplier relates to - (1) change in income due to change in autonomous investment. (2) change in autonomous investment due to change in income. (3) change in income due to change in consumption. (4) change in the income due to change in induced investment.
Last Answer : (2) change in autonomous investment due to change in income. Explanation: The term investment multiplier refers to the concept that any increase in public or private investment spending has a ... . The investment multiplier tries to determine the financial impact for a public or private project.
Description : The value of investment multiplier relates to (1) change in income due to change in autonomous investment. (2) change in autonomous investment due to change in income. (3) change in income due to change in consumption. (4) change in the income due to change in induced investment.
Last Answer : change in autonomous investment due to change in income.
Description : The continuity equation (A) Relates mass flow rate along a stream tube (B) Relates work and energy (C) Stipulates that Newton's second law of motion must be satisfied at every point in the fluid (D) None of these
Last Answer : (A) Relates mass flow rate along a stream tube
Description : . Kick's law assumes that the energy required for size reduction is proportional to the logarithm of the ratio between the initial and the final diameters. The unit of Kick's constant is (A) kW. sec/kg (B) kWh/kg (C) kWh/sec. kg (D) kg/sec
Last Answer : (A) kW. sec/kg
Description : Dean number is concerned with the (A) Fluid-particle interaction (B) Fluid flow through helical pipes (C) Power consumption in agitated vessels (D) Psychrometry
Last Answer : (B) Fluid flow through helical pipes
Description : Newton's law of viscosity relates the (A) Shear stress and velocity (B) Velocity gradient and pressure intensity (C) Shear stress and rate of angular deformation in a fluid (D) Pressure gradient and rate of angular deformation
Last Answer : (C) Shear stress and rate of angular deformation in a fluid
Description : The terminal velocity of a solid spherical particle falling through a stationary fluid mass in the Stoke's law range is proportional to the (A) Inverse of fluid viscosity (B) Square of particle size (C) Difference in the densities of the particle & fluid (D) All (A), (B) and (C)
Last Answer : (D) All (A), (B) and (C)
Description : General crushing equation is given by d(P/m) = -K (dD̅S /D̅ n S ). Bond's crushing law is obtained by solving this equation for n = __________ and feed of infinite size. (A) 1 (B) 1.5 (C) 2 (D) 2.5
Last Answer : (B) 1.5
Description : Filter aids like asbestos, kieselguhr, diatomaceous earth etc. are used to increase the porosity of the final filter cake & reducing the cake resistance during filtration. Filter aid is (A) Added to the feed slurry (B) Pre ... the cake by dissolving solids or by burning it off (D) All 'a', 'b' & 'c'
Last Answer : (D) All 'a', 'b' & 'c'
Description : Boyle's law relates what two variables?
Last Answer : 1. A more correct name is Boyle-Mariotte law, because also Mariotte discovered independently the law.. 2. This law is a relation between pressure and volume at constant temperature. The equation is: pV = k where p is the pressure, V is the volume, k is a constant specific for the system.
Description : Law which relates pressure and volume of gas is A. Charles's law B. Avogadro's law C. Boyle's law D. ideal gas law
Last Answer : Boyle's law
Description : A is developed using historical cost information that relates some metric to the project cost. a) Algorithmic cost modelling b) Expert judgement c) Estimation by analogy d) Parkinson’s Law
Last Answer : a) Algorithmic cost modelling
Description : The law that relates the electric field at the surface of a region to the amount of charge inside the region is called: w) Coulomb's Law x) Faraday's Law y) Gauss' Law z) Biot-Savart Law
Last Answer : ANSWER: Y -- GAUSS' LAW
Description : Stoke's law does not hold good if the size of particle is smaller than (A) 0.0002 mm (B) 0.002 mm (C) 0.02 mm (D) 0.2 mm
Last Answer : (A) 0.0002 mm
Description : Stoke's law is valid only if the size of particle is (A) Less than 0.0002 mm (B) Greater than 0.2 mm (C) Between 0.2 mm and 0.0002 mm (D) All of the above
Last Answer : Answer: Option C
Description : The value of the normalized frequency parameter (V) relates the core size with mode propagation. When single mode fibers propagate only the fundamental mode, what is the value of V?
Last Answer : V≤2.405.
Description : Price is a key element in the marketing mix because it relates directly to A)the size of the sales force. B)the speed of an exchange. C)quality controls. D)the generation of total revenue. E)brand image.
Last Answer : D)the generation of total revenue.
Description : Arrange the following size reduction equipment in the decreasing order of the average particle size produced by each of them. (A) Jaw crusher, Ball mill, Fluid energy mill (B) Ball mill, Jaw crusher, Fluid ... C) Fluid energy mill, Jaw crusher, Ball mill (D) Fluid energy mill, Ball mill, Jaw crusher
Last Answer : (A) Jaw crusher, Ball mill, Fluid energy mill
Description : Goods which are meant either for consumption or for investment are called - (1) Final goods (2) Giffen goods (3) Inferior goods (4) Intermediate goods
Last Answer : (1) Final goods Explanation: All goods which are meant either (i) for consumption by consumers or (ii) for investment by firms are called final goods. They are finished goods, meant for final ... stages of production. Cars, television sets, cloth, food, machinery, equipments etc. are final goods.
Description : Imputed gross rent of owner-occupied buildings is a part of - (1) capital formation (2) final consumption (3) intermediate consumption (4) consumer durable
Last Answer : (2) final consumption Explanation: The figure of final private consumption expenditure includes the imputed gross rent of owner-occupied dwellings, consumption of own-account production and payment by ... of production and hence an income and is also a part of final consumption expenditure.
Description : Payment of water charges by the farmers to the government represents - (1) intermediate consumption (2) final consumption (3) fixed investment (4) inventory investment
Last Answer : (1) intermediate consumption Explanation: Intermediate consumption is an accounting concept which measures the value of the goods and services consumed as inputs by a process of production. It excludes fixed assets whose ... .g. bulk sugar) or completely used up (e.g. electric power, water, etc).
Description : Steel sheets used in the production of furnitures is an example of (1) an intermediate good (2) a final good (3) an investment good (4) a consumption good
Last Answer : (1) an intermediate good Explanation: Intermediate goods are semifinished products are goods that are used as inputs in the production of oilier goods including final goods. It comprises material or ... , intermediate goods either become part of the final product, or are changed beyond recognition.
Description : What are Capital goods? a) Goods used for consumption in the production process b) Goods such as tools, machinery, etc which are used to create final consumer goods c) Goods and services that are consumed fully when purchased by the consumers d) None of the above
Last Answer : : b) Goods such as tools, machinery, etc which are used to create final consumer goods
Description : What are consumption goods? a) Goods used for consumption in the production process b) Goods such as tools, machinery, etc which are used to create final consumption goods c) Goods and services that are consumed fully when purchased by the consumers d) None of the above
Last Answer : : c) Goods and services that are consumed fully when purchased by the consumers
Last Answer : an intermediate good
Description : Imputed gross rent of owneroccupied buildings is a part of (1) capital formation (2) final consumption (3) intermediate consumption (4) consumer durable
Last Answer : final consumption
Description : Goods which are meant either for consumption or for investment are called (1) Final goods (2) Giffen goods (3) Inferior goods (4) Intermediate goods
Last Answer : Final goods
Description : Expenditure on advertisement and public relations by an enterprise is a part of its (1) consumption of fixed capital (2) final consumption expenditure (3) intermediate consumption (4) fixed capital
Last Answer : intermediate consumption
Description : Payment of water charges by the farmers to the govern-ment represents (1) intermediate consumption (2) final consumption (3) fixed investment (4) inventory investment
Description : How can a dairy farmer reduce fodder consumption by his cattle and also increase milk production? (1) By increasing the supply of feed concentrate (2) By stall feeding (3) By allowing the cattle to graze in the fields (4) By administering hormones
Last Answer : (3) By allowing the cattle to graze in the fields Explanation: Like dry fodder is used to fill the empty space in the stomach of cattle, green fodder can also achieve the same result. Fat ... to milk. Green fodder can nicely substitute dry fodder and at the same time keeping the cattle satisfied.
Description : Pick out the wrong statement pertaining to the roll crushers. (A) Maximum feed size determines the required roll diameter (B) For hard material's crushing, the reduction ratio should not ... ratio and differential roll speed affect production rate & energy consumed per unit of surface produced
Last Answer : (C) Both the rolls run necessarily at the same speed
Description : During size reduction by a jaw crusher, the energy consumed decreases with the (A) Decreasing size of product at constant size of feed (B) Decreasing machine capacity (C) Increasing size of feed at constant reduction ratio (D) None of these
Last Answer : (C) Increasing size of feed at constant reduction ratio
Description : Feed size of ≥ 25 cms can be accepted by (A) Ball mill (B) Rod mill (C) Fluid energy mill (D) Jaw crusher
Last Answer : (D) Jaw crusher
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
Description : Work index is the gross energy (kWh/tonne of feed) necessary to reduce a very large feed to such a size that 80% of product particles will pass through a 0.1 mm screen. The value of work index determined for wet grinding should ... to get the same for dry grinding. (A) 1.0 (B) 0.5 (C) 1.34 (D) 4.34
Last Answer : (C) 1.34
Description : A final amplifier of a radio transmitter draws 250 mA of plate current when the plate supply voltage is 1400 volts. If the plate circuit efficiency is 80% and the transmitter is connected to an antenna having a feed impedance of 70 ohms, ... at the feed-point? A. 4.0 A B. 2.2 A C. 1.25 A D. 2.0 A
Last Answer : D. 2.0 A
Description : How can intermodulation interference between two transmitters in close proximity reduced or eliminated? A. Through installing a band-pass filter in the antenna feed line B. Through installing terminated circulator ... high driving power D. By installing a low-pass filter in the antenna feed line
Last Answer : A. Through installing a band-pass filter in the antenna feed line