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Which of the following are essential for a good combustion chamber of turbojet engine? 1. It should allow complete combustion of fuel. 2. It should maintain sufficiently high temperature in the zone of combustion in addition to proper atomization of fuel thus leading to continuous combustion. 3. It should not have high rate of combustion. 4. The pressure drop should be as small as possible
If 'blue' means 'green', green' means 'yellow' 'yellow' means 'orange', 'orange' means 'black', 'black' means 'white', 'white' means 'red', 'red' means 'pink', 'pink' means 'brown', 'brown' means 'grey', than what is the color of human blood?
Consider the following statements: Combustion chamber is 1. the volume between TDC and BDC during the combustion process 2. the space enclosed between the upper part of the cylinder and the top of the piston during the combustion process 3. the space enclosed between TDC and the top of the piston during the combustion process Which of the above statements is/are CORRECT?
If ‘Aman’ means ‘45’, ‘run’ means ‘5’, ‘faster’ means ‘×’, ‘but’ means ‘29‘, ‘Raja’ means ‘-’, ‘can’ means ‘÷’, ‘reach’ means ‘62’ and ‘than’ means ‘16’ then what is the value of: ‘Aman can run faster than Raja but Raja reach + 1’
If white means black, black means red, red means yellow, yellow means orange, orange means green, green means violet and violet means blue, what is the colour of human blood ?
If “×” means “+”, “+” means “÷”, “-“ means “=”, “=” means “<“, “<” means “-”, “÷“ means “>” and “>” means “×” then which of the following relation is true? A. 7 × 3 > 2 – 8 + 2 × 9 B. 7 × 3 + 2 ÷ 8 > 2 × 9 C. 7 > 3 × 2 = 8 + 2 × 9 D. 7 < 3 + 2 – 8 < 2 + 9
Study the information carefully and answer the questions given below: If we arrange the alphabets in the word "RATE" in the English alphabetical order, word "AERT" is formed. Then the third alphabet from the left in this word is "R". similarly, from the word "OPEN" we get - "ENOP" and the third alphabet from the left is "O". From the word "CHEF" we get - "CEFH" the third alphabet from the left "F". From the word "TOY" we get - "OTY" and the third alphabet from the left is "Y". From the word "EAT" we get - "AET" and the third alphabet from the left is "T" If we use all these letters, then a meaningful English word "FORTY" can be formed. Now find which of the following word set DOES NOT give a meaningful word in a similar way.
Consider the following statements for fluidized bed boilers: 1. Fluidized bed boilers produce steam from fossil and waste fuels by using a technique called fluidized bed combustion. 2. Cyclone separators are gas cleaning devices that utilize the centrifugal force created by a spinning gas stream to separate particles from a gas. 3. In a pressurized fluidized bed boiler, the combustion process takes place in a pressurized environment resulting in a compact furnace and improved combustion efficiency. Which of the above statements are correct?
Consider the following statements: 1. Both Otto and Diesel cycles are special cases of dual combustion cycle 2. Combustion process in IC engines is neither fully constant volume nor fully constant pressure process 3. Combustion process in ideal cycle is replaced by heat addition from internal source in closed cycle 4. Exhaust process is replaced by heat rejection in ideal cycle Which of the above statements are correct?
Combustion of furnace oil in a furnace (soaking pit) with preheated combustion air at 400°C results in saving of about __________ percent furnace oil as compared to its combustion with atmospheric air, if the flue gas outlet temperature from the soaking pit is 1200°C.