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 : A column has its equivalent length equal to its length in case of a.one end fixed, other free b.both ends hinged c.one end hinged, other free d.107 dynes e.both end fixed
Last Answer : b. both ends hinged
Description : Roughly what is the total weight of air in the entire earth? a. 1 x 10^5 tons b. 2 x 10^6 tons c. 6 x 10^15 tons d. 8 x 10^10 tons
Last Answer : 6 x 10^15 tons
Description : An automobile weighing 2800 lb and travelling at 30 miles/hr, hits a depression in the road which has a radius of curvature of 50 ft. What is the total force to which springs are subjected. a.8230 lb b.6170 lb c.2800 ib d.107 dynes e.3280 lb
Last Answer : b. 6170 lb
Description : The power of a locomotive is 315 kW and the total weight of the train is 2000 kN. If the track resistance is 15 N per kN, the maximum speed that the locomotive can attain on level track will be a.43 kmph b.83 kmph c.103 kmph d.107 dynes e.38 kmph
Last Answer : e. 38 kmph
Description : What is the total acceleration of a point on the rim of a flywheel 4 mts in diameter 0.6 see after it has started from rest if it accelarates uniformly from rest to 2000 rpm in 20 secs. a.68.9 mts/sec2 b.102.6 mts/sec2 c.78.94 mts/sec2 d.107 dynes e.33.2 mts/sec2
Last Answer : c. 78.94 mts/sec2
Description : The power of a locomotive is 315 kW and the total weight of the train is 2000 kN. If the track resistance is qN per kN, the maximum speed that the locomotive can attain on level track will be a.103 kmph b.83 kmph c.107 dynes d.43 kmph e.63 kmph
Last Answer : e. 63 kmph
Description : If a solid sphere rolls on a horizontal surface, then the ratio of its rotational kinetic energy to its total kinetic energy is a.1 ; 7 b.3 ; 7 c.107 dynes d.4 ; 7 e.2 ; 7
Last Answer : e. 2 ; 7
Description : As part of Intended Nationally Determined contributions, Indian government through additional forest and tree cover has resolved to create an additional carbon sink (in terms of carbon dioxide equivalent) by year 2030 to the ... billion tons (C) 1.5 to 2 billion tons (D) 1 to 1.5 billion tons
Last Answer : (A) 3.5 to 4 billion tons
Description : Why Capacity Of Air Conditioner Is Measured In Tons?
Last Answer : A 4 ton air conditioner is one that can remove 48,000 BTUs of heat per hour from the house. For most people, though, 4 tons means 8000 pounds. (A BTU is a British Thermal Unit, approximately the amount of heat you get from burning one kitchen match all the way down.)
Description : A car whose mass is 2 metric tons is accelerated uniformly from stand hill to 100 kmph in 5 sec. Find the driving force in Newton’s. a. 11,120 N b. 11,320 N c. 11,420 N d. 11520 N formula: F= ma / k
Last Answer : 11,120N
Description : Which is correct ascending arragement of BOD of sewage (S) distillery effluent (DE). Paper mill effluent (PE) and sugar mill effluent (SE)
Last Answer : Which is correct ascending arragement of BOD of sewage (S) distillery effluent (DE). ... B. PEltSltSEltDE C. SltDEltPEltSE D. SEltSltPEltDE
Description : Which is correct matched ? 1. Arsenic poisoning -Black foot disease. 2. Secondary Effluent treatment-Biological process. 3. Pyrolysis -Solid soil wast
Last Answer : Which is correct matched ? 1. Arsenic poisoning -Black foot disease. 2. Secondary Effluent treatment-Biological process. 3. ... C. 2,3,4,5 D. 1,2,3,4
Description : The effluent of a septic tank is A. Fit for discharge into any open drain B. Foul and contains dissolved and suspended solids C. As good as that from a complete treatment D. None of these
Last Answer : ANS: A
Description : Lagoons used for purification of polluted water (A) Are large shallow artificial lakes also known as clarification lakes, maturation ponds or oxidation ponds (B) Use micro-organisms/bacteria in presence of dissolved oxygen (C) Gives an ... 1 mg/litre and BOD = 3.8 mg/litre (D) All (A), (B) & (C)
Last Answer : (D) All (A), (B) & (C)
Description : Oilish impurities present the effluent discharged from the electroplating industry is normally not removed by (A) Chemical coagulation (B) Floatation & skimming (C) Centrifugation (D) Ultra filtration
Last Answer : (A) Chemical coagulation
Description : Effluent treatment cost in a chemical plant is categorised as the __________ cost. (A) Fixed (B) Overhead (C) Utilities (D) Capital
Last Answer : (C) Utilities
Description : Pick up the correct statement from the following: (A) If ground water enters the channel, the channel is known as effluent channel (B) If water goes out of channel to meet ground water, the channel ... level than the water level in channel, ground water flows to the stream (D) All the above
Last Answer : Answer: Option D
Description : During sewage treatment, effluent from which one of the following treatment units has minimum wt/vol amount of suspended solids? (a) Detritus channel (b) Primary sedimentation tank (c) Secondary sedimentation tank (d) Activated sludge process aeration tank
Last Answer : (d) Activated sludge process aeration tank
Description : 3 Primary treatment of effluent is.................. a. Physical process b. chemical process c. biological process d. physico chemical process
Last Answer : Ans.a Physical process
Description : A screw jack has 4 threads per inch. The mean radius of the thread is 2.338 inches. The mean diameter of the bearing surface under the cap is 3.25 inches. What is the turning moment required to raise the bload of 150 kg ( a.5.61 kg-inch b.50.6 kg-inch c.107 dynes d.30.3 kg-inch e.23.6 kg-inch
Last Answer : b. 50.6 kg-inch
Description : According to Kepler's law of motion the square of the time period T of a planet around the sun is proportional to the a.mean distance b.square of the mean distance of planet from sun c.cube of the mean distance of planet from sun d.107 dynes e.3/2 power of the mean distance
Last Answer : c. cube of the mean distance of planet from sun
Description : Under which circumstances will have zero velocity and be still accelerating? a.The bob of a simple pendulum when at its mean position b.107 dynes c.A steamer while taking a turn d.A ball at its highest point of its rise when thrown up e.Tyres of a stationary automobile
Last Answer : d. A ball at its highest point of its rise when thrown up
Description : A particle in SHM while passing through mean position will have a.maximum kinetic energy and maximum potential energy b.107 dynes c.maximum kinetic energy and minimum potential energy d.average kinetic energy and average potential energy. e.minimum kinetic energy and maximum potential energy
Last Answer : c. maximum kinetic energy and minimum potential energy
Description : The most common variation of the classic farm tractor is the Backhoe loader A. HOE C. TOE B. BOE D. None of Above
Last Answer : HOE
Description : The low temperature reservoir of the heat reservoirs is known as ______. A. Source reservoir B. Heel reservoir C. Toe reservoir D. Sink reservoir
Last Answer : Sink reservoir
Description : The binary equivalent of hexadecimal C0B is ________. 107) A) 110000001011 B) 110000001100 C) 110000001001 D) 110100001011
Last Answer : A) 110000001011
Description : A grinding wheel rotates at 3000 rpm. When power supply is cut off the wheel stops in 5 sec. The number of revolutions made by the wheel before coming to rest would be a.500 b.107 dynes c.250 d.3000 e.1000
Last Answer : c. 250
Description : At a roller support the line of reaction and the roller base must be at an angle of a.60? b.90? c.not less than 60? d.not more than 60? e.107 dynes
Last Answer : b. 90?
Description : What force is necessary to hold a weight of 100 kg suspended on a rope wrapped 3 times around a post ( a.0.35 b.0.8 c.1.46 d.2.85 e.107 dynes
Last Answer : a. 0.35
Description : A projectile is shot straight up with vo = 40 m/s. After how many seconds will it return if drag is neglected? a.6 b.107 dynes c.4 d.10 e.8
Last Answer : e. 8
Description : A block A is dropped down a smooth inclined plane, while another identical block B is released for free fall from the same height a.block A will have higher velocity than block B while hitting the ... . c.both will hit the ground simultaneously d.block A will hit the ground earlier e.107 dynes
Last Answer : b. block B will hit the ground earlier.
Description : A ball A of mass 0.25 kg moving on a smooth horizontal table with a velocity of 10 m/s strikes an identical stationary ball B on the table. If the impact is perfectly elastic, the velocity of the ball B just after the impact will be a.2.5 m/s b.zero c.5 m/s d.10 m/s e.107 dynes
Last Answer : c. 5 m/s
Description : According to principle of transmissiblity of forces, when a force acts upon a body, its effect is a.maximum when it acts at C.G. of the body b.minimum when it acts at C.G. of the body c.different at different points of the body d.107 dynes e.same at every point in its line of action
Last Answer : e. same at every point in its line of action
Description : A stone weighing 20 N is whirling in a vertical circle at the extremity of a string 100 cm long. The tension in the string will be zero a.at the highest position b.at the lowest position c.at the midway position d.at none of the above e.107 dynes
Last Answer : a. at the highest position
Description : A man is standing near the edge of a uniformly rotating platform about an axis passing through its centre. The speed of rotation of the platform will decrease if he a.extends his arms outwards b.moves ... heavy bag from one of his friends standing near by and holds it in his hand e.107 dynes
Last Answer : d. accepts a heavy bag from one of his friends standing near by and holds it in his hand
Description : If the distance to electric train is given by Fr = a + bv + cv2 In this equation constant c is likely to cover a.air resistance b.track resistance c.frictional resistance d.flange resistance e.107 dynes
Last Answer : a. air resistance
Description : A hammer gains 50 Ns momentum in 0.05 sec. The average force on the hammer will be a.500 N b.2000 N c.1500 N d.107 dynes e.1000 N
Last Answer : e. 1000 N
Description : A bullet is fired vertically upwards with a velocity of 2200 ft/s. Bullet ascends to a height of a.56,900 ft b.107 dynes c.75,000 ft d.48.300 ft e.65,800 ft
Last Answer : c. 75,000 ft
Description : Centroid of the are of circle shown in adjacement figure is a.r sin (?/2)/2 ?, 0 b.r sin (?)/?, 0 c.2 r sin (?/2)/?, 0 d.107 dynes e.2r sin (?)/?, 0
Last Answer : c. 2 r sin (?/2)/?, 0
Description : What is the maximum force, in Newtons, that will not cause tension? a.294 b.316 c.346 d.184 e.107 dynes
Last Answer : a. 294
Description : A body having SHM has period of 6 sec and amplitude of 4 mts. Maximum velocity is a.?/3 m/s b.2?/3 m/s c.107 dynes d.3? m/s e.4?/3 m/s
Last Answer : e. 4?/3 m/s
Description : A compressure force in boom in above problem is a.107 dynes b.1096 kg c.886 kg d.693 kg e.1390 kg
Last Answer : e. 1390 kg
Description : A non-reversible machine has efficiency a.less than 50% b.nearly 100% c.between 75% and 99% d.more than 50% e.107 dynes
Last Answer : a. less than 50%
Description : In case of a beam subjected to pure bending a.107 dynes b.the stress intensity in any fibre is proportional to the distance of the fibre from the neutral axis c.the stress intensity in any fibre is ... d.the stress intensity in any fibre is uniform e.the nature of stress in any fibre is identical
Last Answer : b. the stress intensity in any fibre is proportional to the distance of the fibre from the neutral axis
Description : The breaking strength of a rope is 400 N. A fireman weighing 60 kg slides down the rope. The rope will break if a.107 dynes b.the acceleration is 7.5 m/s2 c.the acceleration is 1.2 m/s2 d.the acceleration is 3.1 m/s2 e.the slides with an acceleration of 15 m/s2
Last Answer : c. the acceleration is 1.2 m/s2
Description : A apinning ballet dancer draws her arms close to her chest. She will now a.107 dynes b.spin at the same rate c.spin faster d.spin slower e.stop spinning
Last Answer : d. spin slower
Description : A man is standing ner the edge of a uniformly rotating platform about an axis passing through its centre. The speed of rotation of the platorm will decrease if he a.extends his arms outwards b.107 ... towards the axis of rotation d.jumps out from that platform e.take out his coat and throws away
Last Answer : a. extends his arms outwards
Description : A train travels between two stations 15 km apart in 18 minutes. If the train accelerates for a part of journey uniformly followed by uniform retardation, the maximum speed attained by the train during the journey will by a.125 km/hr b.107 dynes c.80 km/hr d.100 km/hr e.60 km/hr
Last Answer : d. 100 km/hr
Description : A bullet is fired from a fifle. If the rifle recoils freely, the kinetic energy of the rifle a.will be the same as the kinetic energy of the bullet b.will be less than the kinetic energy of the bullet c.107 dynes d.will be more than the kinetic energy of the bullet e.
Last Answer : b. will be less than the kinetic energy of the bullet