Description : Fusion point of coal ash generally varies from 1000 to 1700° C. Ash having fusion point less than __________ °C is liable to form clinker. (A) 1100 (B) 1250 (C) 1350 (D) 1400
Last Answer : (A) 1100
Description : The brain of human adult weighs about - (1) 1200 - 1300 gm (2) 1600 - 2000 gm (3) 500 - 800 gm (4) 104 - 200 gm
Last Answer : (1) 1200 - 1300 gm Explanation: The adult human brain weighs on average about 3 lbs. (1.5 kg) with a volume of around 1130 cubic centimetres (cm3) in women and 1260 cm3 in men, although ... same general structure as the brains of other mammals, but is larger than any other in relation to body size.
Description : The brain of human adult weighs about-----? A. 1200 – 1300 gm (Answer) B. 1600 – 2000 gm C. 500 – 800 gm D. 100 – 200 gm
Last Answer : A. 1200 – 1300 gm (Answer)
Description : Shweta deposits a certain amount on 1st January and 1st July (Same amount on both days) in a bank that offers 5% compound interest, compounded half-yearly. Shweta gains interest of Rs.121 at the end of the year. How much money did Shweta deposit? a) 1200 b) 1300 c) 1400 d) 1500 e) 1600
Last Answer : Let the amount be P Half yearly rate = 5/2 = 2.5% For the deposit on January, Amount = P (1 + 2.5 / 100)2 For the deposit on July, Amount = P (1 + 2.5 /100) We can solve the question by ... Amount in July = 1600 1.025 = 1640 So total interest = 81 + 40 = 121 Required answer is 1600 Answer: e)
Description : The brain of human adult weighs about (1) 1200 – 1300 gm (2) 1600 – 2000 gm (3) 500 – 800 gm (4) 100 – 200 gm
Last Answer : 1200 – 1300 gm
Description : 52 A transformer has 1000 primary turns, connected to 250V ac supply. To get 400V secondary voltage the no of secondary turns should be A. 1600 B. 250 C. 400 D. 1250
Last Answer : A. 1600
Description : A passenger train travelling at 96 kmph completely crosses another train having half its length and travelling in opposite direction at 84 kmph, in 24 seconds. It also passes a railway platform in 90 seconds. The length of the platform is A) 1250 m B) 2258m C) 1600 m D) 3725m
Last Answer : ANSWER:C Explanation: Let the length of the first train be x metres Then, is x /2metres Relative speed = (96+84)kmph = 180 kmph Convert km/hr into m/s, = 180*5/18 = 50 m/s Therefore (x ... (800+y) = 90*480/18 y = 2400- 800 = 1600 Hence, the length of the platform is 1600 m
Description : To obtain cement dry powder, lime stones and shales or their slurry, is burnt in a rotary kiln at a temperature between (A) 1100° and 1200°C (B) 1200° and 1300°C (C) 1300° and 1400°C (D) 1400° and 1500°C
Last Answer : D
Description : A thick paste of cement, sand and water is called – (1) Concrete (2) R.C.C. (3) Mortar (4) Kiln
Last Answer : (3) Mortar Explanation: Mortar is a workable paste used to bind construction blocks together and fill the gaps between them. Modern mortars are typically made from a mixture of sand, a binder such as cement or lime, and water
Description : Cement Kiln is a (A) Rotary Kiln (B) Tunnel Kiln (C) Natural draft furnace (D) Batch furnace
Last Answer : (A) Rotary Kiln
Description : Rotary kiln is not involved in the production of (A) Cement (B) Lime from limestone (C) Slaked lime from quick lime (D) None of these
Last Answer : (C) Slaked lime from quick lime
Description : In the manufacture of cement, the dry of wet mixtue of calcareous and argillaceous materials is burnt in a (a) A Rotary kiln (b) A Grinder (c) Country kiln (d) All the above
Last Answer : (a) A Rotary kiln
Description : A thick paste of cement, sand and water is called (1) Concrete (2) R.C.C. (3) Mortar (4) Kiln
Last Answer : Mortar
Description : Ordinary Portland cement requires a specific surface of [ A ] 1250 cm2/gm [ B ] 2250 cm 2/gm [ C ] 3250 cm 2/gm [ D ] 3500 cm 2/gm
Last Answer : [ B ] 2250 cm 2/gm
Description : Which of the following waste types are not suitable for co-combustion in cement kilns? a) Chlorine b) Hydrogen c) Calcium d) Carbonate
Last Answer : Chlorine
Description : Ceramic remunerators can withstand temperatures up to: a) 600 oC b) 1300 oC c) 1700oC d) 950oC
Last Answer : 1300 oC
Description : The compressive strength of cement should not be less than about 110Kg/cm2 after three days & not less than 170Kg/cm2 after seven days. The fineness of an ordinary cement as determined by turbidimetric method should be about __________ cm2 /gm. (A) 800 (B) 1600 (C) 4000 (D) 8500
Last Answer : (B) 1600
Description : One cubit metre of cement weights [ A ] 1000 kg [ B ] 1200 kg [ C ] 1440 kg [ D ] 1600 kg
Last Answer : [ C ] 1440 kg
Description : Non-volatile heavy metals in kiln are fixed into ____ a) Clinker’s crystalline structure b) Fumes c) Solid lump d) Slag
Last Answer : Clinker’s crystalline structure
Description : A single purchase crab has a handle 45 cm long and a drum of 25 cm diameter. The pinion has 30 teeth and spur has 150 teeth. The efficiency of the machine is 75%. If the maximum force that can be applied is ... maximum load that can be lifted will be a.9860 N b.6750 N c.20250 N d.1250 N e.13500 N
Last Answer : b. 6750 N
Description : Normal values of overflow rate for sedimentation tanks using coagulants in litres/hr/m2 , generally range between (A) 250 to 500 (B) 500 to 750 (C) 750 to 1000 (D) 1000 to 1250
Last Answer : (D) 1000 to 1250
Description : What is the local oscillator frequency range commercial AM broadcast if it is equal to 455 KHz. A. 540 to 1600 KHz B. 0 to 1600 KHz C. 995 to 2055 KHz D. 0 to 455 KHz
Last Answer : C. 995 to 2055 KHz
Description : What capital city is 1450 miles northeast of Hanoi Vietnam and 500 miles west Pyongyang North Korea?
Last Answer : Beijing
Description : If a circular grass lawn of 35 m in radius has a path 7 m wide running around it on the outside, then the area of the path is (a) 1450 m 2 (b) 1576 m 2 (c) 1694 m 2 (d) 3368 m 2
Last Answer : (c) 1694 m 2
Description : Fusion zone in the electric furnace used for reduction of phosphate rock to elemental phosphorous is maintained at __________ °C. (A) 250-300 (B) 500-750 (C) 950-1050 (D) 1400-1450
Last Answer : (D) 1400-1450
Description : The G.T. road from Lahore to Calcutta in undivided India, was constructed during (A) 3495-3500 BC (B) 265-270 BC (C) 1540-1545 AD (D) 1440-1450 AD
Last Answer : Answer: Option C
Description : What invention in about 1450 A.D. revolutionized communication and the world?
Last Answer : ANSWER: THE PRINTING PRESS
Description : Consider the following transportation problem : The transportation cost in the initial basic feasible solution of the above transportation problem using Vogel’s Approximation method is : (A) 1450 (B) 1465 (C) 1480 (D) 1520
Last Answer : (B) 1465
Description : Radioactive solid nuclear wastes are disposed off by (A) High temperature incineration (B) Pathological incineration (C) Pyrolysis (D) Underground burial in concrete containers
Last Answer : (D) Underground burial in concrete containers
Description : Which country set up the world's first chemistry lab in 1650?
Last Answer : Netherlands
Description : How long ago was 1350 AD?
Last Answer : 50 + 600 + 18 = 668
Description : What times 50 equals 1650?
Last Answer : It is 33 times 50 = 1650
Description : What does 1350 times 8 equal?
Last Answer : 10800
Description : If a current of 1.5 A is maintained in a resistor of 10 2, then the energy dissipated in the resistor in 1 minute will be : (1) 15 W (2) 22.5 W (3) 135 W (4) 1350 W
Last Answer : (4) 1350 W Explanation: The potential difference or voltage, V, across two points is defined as the energy, E dissipated or transferred by a coulomb of charge 9, that moves through two points.
Description : Which was the most popular first generation computer? a. IBM 1650 b. IBM 360 c. IBM 1130 d. IBM 2700
Last Answer : IBM 1650
Last Answer : a. IBM 1650
Description : The minimum horizontal distances form centre of track to face of passenger platform coping for B.G. is ……. Mm (A) 1650 MM. (B) 1670 MM* (C)1676 MM (D) 1685 MM
Last Answer : (B) 1670 MM*
Description : M and N invested in a business in which M invests Rs.385 more than N. N invested for 9months while M invested for 5months. If M get Rs.65 more than N out of profit of Rs.1350. Then then total amount invested in the business approximately is, A) 1452 B) 7413 C) 6298 D) 5778
Last Answer : Answer: B) Let investment of M is X + 385 Let investment of N is X Profit earned of M&N is, M/N=(X+385)*5 /x *9-------> (1) Profit of M =65 +profit of N Total profit = 1350=65 + ... =(x + 385) *5/(x*9) X =392.01 Total investment =(392+385)*5+(392*9) =Rs.7413
Description : A boy rows 1500m in 1350 seconds against the stream and returns in 15 minutes. His rowing speed in still water is. A) 5km/hr B) 4km/hr C) 7km/hr D) 9km/hr
Last Answer : ANSWER : A Explanation: Rate upstream = (1500 / 1350) m/s = (150/135) m/s = 10/9 m/s Rate downstream = (1500 / 900)m/s = (15/9)m/s = 5/3 m/s Rate in still water = ½ [ a+ b] = ½[10 / 9 + 5 /3 ... +15 / 9] = ½[25/9] = 25/18 m/s = (25/18) * (18/5)km/hr speed in still water = 5km/hr
Description : In an election between two candidates, the winner secured 85% of the total votes cast and wins by a majority of 6300 votes. How many votes did the losing candidate get? a) 1350 b) 2479 c) 3467 d) 5789
Last Answer : Answer: A Total votes cast = 100% Winner gets = 85% Loser gets = 100 – 85 = 15% Majority = Votes secured by winner – Votes secured by loser = 85% - 15% =70% =6300 Votes by the losing candidate = x = 15% x = (15 * 6300)/70 x =(94500/70) x = 1350
Description : Which country set up the world’s first chemistry lab in 1650
Description : Coke is made by heating coal in the absence of air at: A. 700 °C B. 1300 °C C. 900 °C D. 1700 °C ANSWER: Why are soft drinks made with chilled water rather than water at room ... B. Chilled water enhances the taste C. Chilled water attracts more carbon dioxide D. Chilled water is more hygienic
Last Answer : ANSWER: C
Description : Calcination reaction of limestone (CaCO3 → CaO + CO2 ) goes to completion in the rotary kiln, because (A) CaO is not dissociated (B) CO2 escapes continuously (C) Of high calcination temperature (D) CaO is more stable than CaCO3
Last Answer : (B) CO2 escapes continuously
Description : How much temperature is maintained during quicklime manufacture in the calcination zone of the vertical shaft kiln? (A) 500°C (B) 750°C (C) 1000°C (D) 1500°C
Last Answer : (C) 1000°C
Description : Metallic recuperators are not used for waste heat recovery, if the hot flue gas temperature is above __________ °C, because corrosion prevails at higher temperatures. (A) 350 (B) 750 (C) 1050 (D) 1250
Last Answer : (B) 750
Description : Maximum combustion temperature in gas turbines is of the order of 1100 to 10°C whereas same is around 00°C in I.C. engine ? Why ?
Last Answer : High temperature in I.C. engine can be tolerated because it lasts for a fraction of second but gas turbines have to face it continuously which metals can’t withstand.
Description : are portable devices capable of estimating the combusting efficiency of furnaces, boilers, or other fossil fuel burning machines. a) Sound analyzer. c) Combustion analyzer. b) Light analyzer. d)Temperature analyzer
Last Answer : Combustion analyzer.
Description : measures oxygen and temperature of the flue gas. a) Fuel efficiency monitor. b) Combustion analyzer. c) Contact thermometer. d) Infrared thermometer.
Last Answer : Combustion analyzer
Description : are portable devices capable of estimating the combusting efficiency of furnaces, boilers, or other fossil fuel burning machines. a) Sound analyzer. b) Light analyzer. c) Combustion analyzer. d) Temperature analyzer.