IIT JEE Practice Question and Answer
8Q: The hot holding temperature for potentially hazardous foods must be 1820 05b5cc622e4d2b4197774b7d4
5b5cc622e4d2b4197774b7d4- 1not less than 60 degtrue
- 2less than 60 degfalse
- 3less than 5 degfalse
- 4None of the abovefalse
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Answer : 1. "not less than 60 deg"
Explanation :
Answer: A) not less than 60 deg Explanation: Potentially hazardous foods are foods that might contain food poisoning bacteria and are capable of supporting growth of these bacteria or formation of toxins to levels that are unsafe for consumers, if the foods are not stored at correct temperatures. Toxins are poisonous chemicals produced by some types of bacteria. The food can be left at room temperature until it reaches 60 deg C because food-poisoning bacteria will not multiply at 60 deg C or above. However, do not leave food cooling at room temperature unless you are sure that the temperature of the food is still at least above 60 C.
Q: A disaccharide is formed by the chemical bonding of 1820 05b5cc63de4d2b4197774bad9
5b5cc63de4d2b4197774bad9- 1two monosaccharidestrue
- 2two polysaccharidesfalse
- 3one monosaccharide and one polysaccharidefalse
- 4All the abovefalse
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Answer : 1. "two monosaccharides"
Explanation :
Answer: A) two monosaccharides Explanation: Disaccharides are formed when two monosaccharides join together by the dehydration synthesis reaction resulting in a glycosidic bond between the two monosaccharide molecules. The reaction produces water as a side product.
Q: How many 4-letter words with or without meaning, can be formed out of the letters of the word, 'LOGARITHMS', if repetition of letters is not allowed ? 1819 05b5cc731e4d2b4197774f805
5b5cc731e4d2b4197774f805- 15040true
- 22525false
- 32052false
- 44521false
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Answer : 1. "5040"
Explanation :
Answer: A) 5040 Explanation: The Word LOGARITHMS contains 10 letters. To find how many 4 letter words we can form from that = P410 =10x9x8x7 = 5040.
Q: In which year was "Jana Gana Mana" adopted as the National Anthem ? 1819 05b5cc6d3e4d2b4197774e4d2
5b5cc6d3e4d2b4197774e4d2- 11947false
- 21949false
- 31951false
- 41950true
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Answer : 4. "1950"
Explanation :
Answer: D) 1950 Explanation: 1950
Q: International Workers' Day or Labour Day is celebrated on ? 1819 05b5cc6e5e4d2b4197774ed47
5b5cc6e5e4d2b4197774ed47- 1April 1stfalse
- 2May 1sttrue
- 3June 1stfalse
- 4July 1stfalse
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Answer : 2. "May 1st"
Explanation :
Answer: B) May 1st Explanation: International Workers' Day, also known as Labour Day in some countries, is a celebration of labourers and the working classes that is promoted by the international labour movement, socialists, communists or anarchists. It occurs every year on May Day which is May 1st. It is the day to pay tribute to the Labourers. Without them nothing will complete. In India, the first Labour Day, or May Day, was celebrated in 1923 in Chennai.
Q: Bacteria divide by 1819 05b5cc6a6e4d2b4197774cde8
5b5cc6a6e4d2b4197774cde8- 1Binary Fissiontrue
- 2Spirillafalse
- 3RNAfalse
- 4Fusionfalse
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Answer : 1. "Binary Fission"
Explanation :
Answer: A) Binary Fission Explanation: Bacteria divided and reproduce by Binary fission. In this process, the bacterium, which is a single cell, divides into two identical daughter cells. Binary fission begins when the DNA of the bacterium divides into two replicates.
Q: How many bottles of water is a gallon? 1818 05b5cc672e4d2b4197774c0a5
5b5cc672e4d2b4197774c0a5- 116false
- 28true
- 34false
- 42false
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Answer : 2. "8"
Explanation :
Answer: B) 8 Explanation: The easiest way would measure it through half a liter water bottle. There are approximately 16.9 ounces(oz) of water in a 500ml water bottle. Gallon is an imperial customary volume unit for the U.S. As we have previously mentioned, the 16.9oz bottle is also known as 500ml in the metric system. According to U.S. standard, 1 gallon stands for 128 fluid oz. Hence, Number of bottles in 1 gallon = 128/16.9 = 7.57 =~ 8.
Q: A Product is supported each week by the same three Product supporters. Last month the first supporter took 440 calls, the second took 360 calls, and the third took 300 calls. This month the job will consists of 1500 calls. If the three supporters each increase their work proportionately, how many more calls will the second supporter take this month than last month ? 1818 05b5cc745e4d2b4197774fa40
5b5cc745e4d2b4197774fa40- 1131 callstrue
- 2160 callsfalse
- 3491 callsfalse
- 4600 callsfalse
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Answer : 1. "131 calls"
Explanation :
Answer: A) 131 calls Explanation: 1st supporter recieve 440 calls 2nd supporter recieve 360 calls 3rd supporter recieve 300 calls So total calls = 1100 calls ; Calls this month= 1500 So remaining calls to be distributed is 400 So Now Ratio 1st:2nd:3rd ==> 440:360:300=> 22:18:15 Now No. of More Calls 2nd supporter will get => [18/(22+18+15)] x 400=> (18/55) x 400 => 131 CallsSo 131 more Calls than last month.

