From the trivia question You are walking down the street in a small town in Manitoba, and see a local police officer. What police force is she a member of?
Sat, 10 Jan 2009 08:10:03 -0000
excelent question
Person
3 Comments
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From the trivia question During a Morse test on a 4 cylinder engine, the following measurements of brake power were taken at constant speed. All cylinders firing 3037 kW Number 1 cylinder not firing 2102 kW Number 2 cylinder not firing 2102 kW Number 3 cylinder not firing 2100 kW Number 4 cylinder not firing 2098 kW The mechanical efficiency of the engine is.........
Sun, 21 Dec 2008 07:05:06 -0000
explanation :- (BP = BP1+BP2+BP3+BP4)=> (IP1+IP2+IP3+IP4 – 4F.P =BP1+BP2+BP3+BP4=3037KW.)=> (0 +IP2+IP3+IP4 – 4F.P = 2102KW)=> (IP1+ 0 +IP3+IP4 – 4F.P = 2102KW)=> (IP1+IP2+ 0 +IP4 – 4F.P = 2100KW)=> (IP1+IP2+IP3+ 0 – 4F.P =2098KW.)=> (FROM the above eqns. we get IP1,IP2,IP3,&IP4)=> (IP= IP1+IP2+IP3+IP4 = 3746 KW.)=> (mechanical efficiency = BP/IP =3037/3746 = 81.07 %.)
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From the trivia question Environment friendly refrigerant R134a is used in the new generation domestic refrigerators. Its chemical formula is....
Sun, 21 Dec 2008 06:42:29 -0000
better to put questions on cryogenic refrigerants….
