Description : In a 100 TPD Sponge Iron plant, the sponge iron is fed to the Induction melting furnace, producing molten steel at 88% yield. The Energy consumption details are as follows: Coal Consumption : 130 ... molten steel (product). 3. Total Energy Consumption of Plant in Tons of Oil Equivalent (TOE )
Last Answer : a) Specific Energy Consumption of Induction Melting Furnace Molten Steel Production from the Induction melting furnace per day = 100 x 88/100 = 88 TPD Total Energy Consumption of the Plant = 82400 kWh ... mark c) Total Energy consumption of Plant in ToE = 655864000/107 = 65.586 ToE
Description : In a manufacturing plant, following data are gathered for a given month: Production - 1200 pieces; specific energy consumption - 1000 kWh/piece; variable energy consumption - 950 kWh/piece. The fixed energy consumption of the plant ... ----- a) 6,000 kWh b)10,000 kWh c) 12,000 kWh d) 60,000 kWh
Last Answer : d) 60,000 kWh
Description : Production of one ton of paper in Indian paper industry consumes about __________ kWh of electricity. (A) 300 (B) 800 (C) 1400 (D) 2000
Last Answer : (C) 1400
Description : Infrared range for fiber optics ∙ a. 400 – 700 nm ∙ b. 700 – 1200 nm ∙ c. 300 – 2000 nm ∙ d. 400 – 7000 nm
Last Answer : b. 700 – 1200 nm
Description : Which one is not an energy consumption benchmark parameter? a) kcal/kWh of electricity generated b) kg/ oC. c) kW/ton of refrigeration d) kWh/kg of yarn
Last Answer : b) kg/ oC.
Description : The energy required per unit mass to grind limestone particles of very large size to 100 μm is 12.7 kWh/ton. An estimate (using Bond's law) of the energy to grind the particles from a very large size to 50 μm is (A) 6.35 kWh/ton (B) 9.0 kWh/ton (C) 18 kWh/ton (D) 25.4 kWh/ton
Last Answer : (C) 18 kWh/ton
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 : Yield of blast furnace gas is about __________ Nm3 /ton of pig iron. (A) 300 (B) 2000 (C) 5000 (D) 10000
Last Answer : (B) 2000
Description : Energy consumed for crushing one ton of material ranges from __________ kWh. (A) 0.01 to 0.1 (B) 0.5 to 1.5 (C) 2 to 3.5 (D) 4 to 5
Last Answer : (B) 0.5 to 1.5
Description : As per chart on energy consumption the supply unit of furnace oil is ……… a. kWh c. kV b. kg. d. Watts
Last Answer : kg
Description : 99. As per chart on energy consumption the supply unit of furnace oil is ……… a. kWh c. kV b. kg. d. Watts
Last Answer : kg.
Description : The temperature in the calcium carbide furnace is __________ °C. (A) 200-300 (B) 700-850 (C) 2000-2200 (D) 4000-4500
Last Answer : (C) 2000-2200
Description : The wavelength of visible light extends from a. 0.8 to 1.0 nm b. 400 to 750 nm c. 200 to 660 nm d. 700 to 1200 nm
Last Answer : b. 400 to 750 nm
Description : The wavelength of a visible extends from ∙ A. 0.8 to 1.6 um ∙ B. 400 to 750 nm ∙ C. 200 to 660 nm ∙ D. 700 to 1200 nm
Last Answer : B. 400 to 750 nm
Description : The wavelength of visible light extends from ∙ a. 0.8 to 1.0 nm ∙ b. 400 to 750 nm ∙ c. 200 to 660 nm ∙ d. 700 to 1200 nm
Description : Optimum reaction temperature in steam reforming of naphtha is __________ °C. (A) 700 - 1000 (B) 300 - 450 (C) 1500-1700 (D) 100-200
Last Answer : (A) 700 - 1000
Description : A number is reduced by 10%. Its present value is 1080. What was its original value? a) 3250 b) 2600 c) 1200 d) 2300 e) 1980
Last Answer : Answer: C Original value is percentage = 100 %. Reduce amount in percentage = 10 % Therefore, Percent value in percentage = 100 % - 10 % = 90 %. According to the problem, 90 % of original value ... Therefore, 100 % of original value = 1080/100 90 = 1200. Thus, the original value was 1200.
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 )
Description : The cutter bar of a tractor operated on owner makes strokes/min (a) 400 – 500 (b) 500 – 750 (c) 800 – 1200 (d) 1250 – 1500
Last Answer : (c) 800 – 1200
Description : For protection of level crossing gate in an emergency on BG double line the Gateman should place one detonator at one place and 3 detonators at a subsequent place at a distance of ------- a) and------ ... c) 500 meters and 1000 meters d) 600 meters and 1200 meters* e) 800 meters in 1500 meters
Last Answer : d) 600 meters and 1200 meters*
Description : If 25 toys cost 500, what would be the cost of 75 toys? A. 2000 B. 1500 101 C. 1200 D. 1700
Last Answer : ANSWER: B
Description : If 25 toys cost 500, what would be the cost of 75 toys? A. 2000 B. 1500 C. 1200 D. 1700
Description : The weight of 1 m3 of brick earth, is about (A) 1200 kg (B) 1500 kg (C) 1800 kg (D) 2000 kg
Last Answer : Answer: Option C
Description : A father runs after his son, who is 1000 meters ahead. The father runs at a speed of 1 kilometre every 8 minutes, and the son runs at a speed of 1 kilometer every 12 minutes. How much distance has ... father overtakes him? a) 2500 meters b) 2000 meters c) 1500 meters d) 1000 meters e) 1200 meters
Last Answer : Time taken is same for both father and son Let x be the distance son travelled before being overtaken by his father Time taken by son = x/5 km/hour Time taken by father = (1000 + x) / 7.5 km/hr Since, time taken is same x/5 = (1000 + x) / 7.5 or x = 2000m Answer: b)
Description : Ashok being the sleeping partner receives 1/10th of profit and the remaining is divided between pramod and prakash in the ratio of 1:2..If the difference between the profit shares of Ashok and Prakash is Rs.2000.What is pramod’s share in Rs.? A.Rs.1800 B.Rs.2200 C.Rs.1200 D.Rs.1500
Last Answer : Answer:- C (1200) Explanation:- let total profit =x ashok's share in profit is (1/10)x remaining profit = x= (1/10)x= (9/10)x pramod's share= 1/3 x (9/10)x = (3/10 )x Prakash's share= 2/3 ... /10)x = (5/10)x 5/10 x = 2,000 so, x= 4000 pramod's share= (3/10) x 4000=1200
Description : The cooling rate required to freeze 1 ton of water at 0°C into ice at 0°C in 24 hours is __________ BTU/hr. (A) 100 (B) 200 (C) 1000 (D) 2000
Last Answer : (B) 200
Description : The overall heat transfer co-efficient for a shell and tube heat exchangerfor clean surfaces is U0 = 400 W/m2 .K. The fouling factor after one year of operation is found to be hd0 = 2000 W/m2 .K. The overall heat transfer coefficient ... 1200 W/m2 .K (B) 894 W/m2 .K (C) 333 W/m2 .K (D) 287 W/m2 .K
Last Answer : (C) 333 W/m2 .K
Description : An electric furnace producing heat by means of an electric arc struck between each of three electrodes and the charge is called __________ furnace. (A) Resistance (B) Arc (C) Low frequency induction (D) None of these
Last Answer : (B) Arc
Description : __________ furnace is not an electric furnace. (A) Arc (B) Induction (C) Pot (D) Resistance
Last Answer : (C) Pot
Description : The electric furnace in which heat is produced by a combination of induced current and skin effect is called __________ furnace. (A) Arc (B) Resistance (C) Low frequency induction (D) High frequency induction
Last Answer : (D) High frequency induction
Description : The work index in Bond's law for crushing of solids has the following dimensions (A) No units (dimensionless) (B) kWh/ton (C) kW/ton (D) kWh.m1/2 /ton
Last Answer : (B) kWh/ton
Description : A single phase energy meter has a constant of 1200 revolution/kWh. When a load of 200 W is connected, the disc rotates at 4.2 revolutions per min. If the load is on for 10 hours, the meter records an excess of (a) 0.1 kWh (b) 0.2 kWh (c) 1.0 kWh (d) 2.0 kWh
Last Answer : 2
Description : Gas yield in the Kopper-Totzek coal gasifier is about __________ Nm3 /ton coal (ash = 35%). (A) 150 (B) 1500 (C) 3500 (D) 5000
Last Answer : (C) 3500
Description : In a heat treatment shop, steel components are heat-treated in batches of 80 Tons. The heat treatment cycle is as follows; Increase temperature from 30 OC to 850 OC in 3 hours. ... efficiency of 80%, for same requirement. The investment towards installation of the new furnace is Rs. 50
Last Answer : Quantity of steel treated per batch - 80 Tons a. Efficiency of Furnace: Useful heat supplied to steel - 80000 x 0.12 x (850 - 30) = 7872000 kcal/batch .1 mark Total heat ... = Rs. 64400/batch Efficiency of new LPG furnace - 80% Heat supplied in new LPG furnace - 7872000/0.8
Description : The heat released by cooling one mole of copper from 400 K to room temperature (300 K) is (assume : Cp of copper is 23 J K-1mole-1) (A) 2300 J (B) 4600 J (C) 230 J (D) 2.3 × 106 J
Last Answer : A) 2300 J
Description : Two Pelton turbines A and B have the same specific speed and are working under the same head. Turbine A produces 400 kW at 1000 rpm. If turbine B produces 100kW, then its rpm is (a) 4000 (b) 2000 (c) 1500 (d) 3000
Last Answer : (b) 2000
Description : Commercial available medium size machines have a speed range of ______ . (a) 200 to 400 r.p.m. (b) 600 to 1000 r.p.m. (c) 1000 to 1500 r.p.m. (d) 2000 to 2500 r.p.m.
Last Answer : (d) 2000 to 2500 r.p.m.
Description : While the fuel fired furnace can be used upto a maximum temperature of about 1700°C, the electric furnace can be used upto a temperature of about __________ °C. (A) 2000 (B) 3000 (C) 4500 (D) 6000
Last Answer : (C) 4500
Description : A sender uses the Stop-and-Wait ARQ protocol for reliable transmission of frames. Frames are of size 1000 bytes and the transmission rate at the sender is 80 Kbps (1Kbps = 1000 bits/second). Size of ... is lost, the sender throughput is __________ bytes/second. a. 2500 b. 2000 c. 1500 d. 500
Last Answer : a. 2500
Description : The resistance furnace produces heat by the (A) Electric arc struck between electrodes and the charge (B) Flow of current through a heating element (C) Combination of induced current and skin effect (D) None of these
Last Answer : (B) Flow of current through a heating element
Description : The refractory lining of the bottom in a basic electric arc furnace is made of (A) Silica (B) Alumina (C) Magnesia (D) Fireclay
Last Answer : Option C
Description : Find the current density of a material with resistivity 20 units and electric field intensity 2000 units. a) 400 b) 300 c) 200 d) 100
Last Answer : d) 100
Description : Conversion of yellow phosphorous to red phosphorous is done by heating it in covered retorts at __________ °C in absence of air. (A) 50-80 (B) 250-400 (C) 1000-1200 (D) 800-900
Last Answer : (B) 250-400
Description : As per pie chart on energy consumption the supply unit of the electricity is……….. a. kWh c. kV b. kg. d. Watts
Last Answer : kwh
Description : 95. As per pie chart on energy consumption the supply unit of the electricity is……….. a. kWh c. kV b. kg. d. Watts
Description : At present, in terms of per capita energy consumption (kWh/year), identify the correct sequence. (A) Brazil > Russia > China > India (B) Russia > China > India > Brazil (C) Russia > China > Brazil > India (D) China > Russia > Brazil > India
Last Answer : (C) Russia > China > Brazil > India
Description : How long does it take to drive 2300 miles at 60 mph?
Last Answer : Need answer
Description : __________ furnace is generally used in the non-ferrous foundries. (A) Direct arc (B) Indirect arc (C) Resistance (D) Induction
Last Answer : (B) Indirect arc
Description : The amount of energy required by the children of age between one to three years is: A. 300 K Calories B. 600 K Calories C. 1200 K Calories D. 1500 K Calories
Last Answer : ANSWER: C