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Consider the following statements regarding C.I. engine: 1. C.I. engines are more bulky than S.I. engines 2. C.I. engines are more efficient than S.I. engines 3. Lighter flywheels are required in C.I. engines Which of the above statements are correct?
A and B together work for 3 days, B then worked alone for 2 days, A then worked alone for 3 days and the work was finished. If A works for 8 days alone and B works for 4 days alone, the work will be finished. How many days will A alone work if B works for 5 days alone?
Consider the following statements with regard to IC engines: 1. For best fuel economy of spark ignition engines, the fuel-air mixture should be lean 2. With supercharging, the specific consumption in compression ignition engines increases 3. With increase of load, knocking tendency in compression ignition engines increases Which of the above statements are correct?
Consider the following statements pertaining to supercharging of engines: 1. The power output for a given engine increases 2. The loss of power due to altitude is compensated 3. The increase in supercharging pressure decreases the tendency to detonate in spark ignition engines 4. The mechanical efficiency of supercharged engines is quite high compared to naturally aspirated engines Which of the above statements are correct?
Directions : Following question consists of a statement followed by three arguments I, II and III . You have to decide which of the arguments is a STRONG arguments and which is a WEAK Argument. Statement : Should coal engines be replaced by electric engines in trains? Arguments : I. Yes. Coal engines cause a lot of pollution. II. Yes. Electric engines are good on performance, easy to operate and low on maintenance. III. No. India does not produce enough electricity to fulfil its domestic needs also.
If 6 engines consume 24 metric tonnes of coal, when each is working 8 hours day, how much coal will be required for 9 engines, each running 13hours a day, it being given that 2 engines of former type consume as much as 3 engines of latter type ?
If 5 engines consume 6 metric tonnes of coal when each is running 9 hours a day, how many metric tonnes of coal will be needed for 8 engines, each running 10 hours a day, it begin given that 3 engines of the former type consume as much as 4 engines of the latter type ?
Directions : Following question consists of a statement followed by three arguments I, II and III . You have to decide which of the arguments is a STRONG arguments and which is a WEAK Argument.

Statement : Should coal engines be replaced by electric engines in trains?

Arguments :
I. Yes. Coal engines cause a lot of pollution.
II. Yes. Electric engines are good on performance, easy to operate and low on maintenance.
III. No. India does not produce enough electricity to fulfil its domestic needs also.
Each of the following problem has a question and two statements which are labeled 1. and. Use the data given in 1. and 2. to decide whether the statements are sufficient to answer the question.Select one of the following . a.Statements (1) ALONE is sufficient,but (2) ALONE is not sufficient. b.Statements (2) ALONE is sufficient,but (1) ALONE is not sufficient. c. Both statement TOGETHER are sufficient but statement alone is sufficient . What is the volume of rectangular box S? (1) The total surface of S is 22.(2) The rectangular box S is a cube
Each of the following problem has a question and two statements which are labeled 1. and. Use the data given in 1. and 2. to decide whether the statements are sufficient to answer the question.Select one of the following . a.Statements (1) ALONE is sufficient,but (2) ALONE is not sufficient. b.Statements (2) ALONE is sufficient,but (1) ALONE is not sufficient. c. Both statement TOGETHER are sufficient but statement alone is sufficient .How many minutes are there is time period T? (1) Time period T extends from 12.00 midnight to 12.00 noon.(2) Time period T is 2 hours and 180 seconds long.