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Consider the schema Sailors(sid, sname, rating, age) with the following data Sid Sname Rating age 22 Dustin 7 45 29 Borg 1 33 31 Pathy 8 55 32 Robert 8 25 58 Raghu 10 17 64 Herald 7 35 71 Vishnu 10 16 74 King 9 35 85 Archer 3 26 84 Bob 3 64 96 Flinch 3 17 For the query SELECT S.rating, AVG(S.age) AS avgage FROM Sailors S Where S.age >= 18 GROUP BY S.rating HAVING 1 < (SELECT COUNT(*) FROM Sailors S2 where S.rating = S2.rating) The number of rows returned is
Which of the following statement/s is/are relating to credit rating agencies?
1. The three largest credit rating agencies rate India's sovereign debt at the highest investment grade.
2. CRISIL is the largest credit rating agency in India but is not among the largest three in the world.
3. The three largest credit rating agencies in the world are Moody's, Standard and Poor's and Fitch.
What will be the collector efficiency of a power amplifier having zero signal power dissipation of 5 watts and a.c. power output of 2 watts?
A wattmeter has a full scale range of 2500 Watts. It has an error of 1.2% of true value. What would be range of reading if true power is 1250 Watts.
For marketing purpose, the automobile industry might want to dust off its slogan "power to the people". Detroit and the foreign automakers are in a horsepower war not seen since the muscle car era of the 1960s. What does the second sentence do?
The average rating of 100 observation is 50. If we remove a rating 50 and include rating 150, then what is the new average?
How many watts are there in one horsepower?
How many watts are there in a horsepower?
There are 12 tubular lamps of 60 watts on a street, each controlled by means of a switch. What should be the rating of the switch if the supply power is 225 volts and the power factor of the lamp is 0.8 assuming the safety factor to be 2?
A transformer is connected to 2200 V, 40 Hz supply. The core loss is 800 Watts out of which 600 Watts are due to hysteresis and remaining eddy current losses. What is the core loss if the supply voltage and frequency are 3300 V and 60 Hz respectively?