Practice Question and Answer
8Q: The primary purpose of an operating system is ? 4692 35b5cc709e4d2b4197774f27b
5b5cc709e4d2b4197774f27b- 1To allow people to use the computerfalse
- 2To make computers easier to usefalse
- 3To keep systems programmers employedfalse
- 4To make the most efficient use of the computer hardwaretrue
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Answer : 4. "To make the most efficient use of the computer hardware"
Explanation :
Answer: D) To make the most efficient use of the computer hardware Explanation: The primary purpose of an operating system is to make the most efficient use of the computer hardware.
Q: Which of the following activities are examples of data gathering? 4691 05b5cc601e4d2b4197774b458
5b5cc601e4d2b4197774b458- 1Counting the votes in an election to determine the next governortrue
- 2Making a pie chart showing the kinds of television sets owned by people in a sample of 1,000false
- 3Finding the mean weight of cancer patients in a studyfalse
- 4Using the results of a mathematical model to predict the next day's weatherfalse
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Answer : 1. "Counting the votes in an election to determine the next governor"
Explanation :
Answer: A) Counting the votes in an election to determine the next governor Explanation: Option A) "Counting the votes in an election to determine the next governor" is the only one where data gathering is done. In all other options, data is already collected and now analyzing of data is going on.
Q: Which IT company has developed Financial Core - a banking software product? 4689 05b5cc7c4e4d2b41977750c23
5b5cc7c4e4d2b41977750c23- 1Wiprofalse
- 2Satyamfalse
- 3Infosystrue
- 4TCSfalse
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Answer : 3. "Infosys"
Explanation :
Answer: C) Infosys Explanation:
Q: In the given figure, which number presents steel bottles which are caps?
4689 05d9dbb2383cbd37fec650453
5d9dbb2383cbd37fec650453- 12false
- 24false
- 33true
- 46false
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Answer : 3. "3"
Q: Area of the given field book is…….
4688 05e463f2b73b6222f38390fae
5e463f2b73b6222f38390fae- 1510false
- 2490true
- 3492false
- 4520false
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Answer : 2. "490"
Q: One day Faheema left school and walked 12 km towards North then she turned towards right and walked 7 km and then she turned towards left and walked 12 km. Again she turned towards right and walked 1 km. How much distance would she has to walk to reach her school straight?
4688 05ee359b72bf4c404464ac503
5ee359b72bf4c404464ac503- 12 km.false
- 217 km.false
- 325 km.false
- 4None of thesetrue
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Answer : 4. "None of these "
Q: The current of a stream at 1 kmph. A motor boat goes 35 km upstream and back to the starting point in 12 hours. The speed of the motor boat in still water is ? 4688 05b5cc6dce4d2b4197774e9c4
5b5cc6dce4d2b4197774e9c4- 18 kmphfalse
- 26 kmphtrue
- 37.5 kmphfalse
- 45.5 kmphfalse
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Answer : 2. "6 kmph"
Explanation :
Answer: B) 6 kmph Explanation: Speed of the stream = 1Motor boat speed in still water be = x kmphDown Stream = x + 1 kmphUp Stream = x - 1 kmph[35/(x + 1)] + [35/(x - 1)] = 12x = 6 kmph
Q: We must stay here now. (Change into negative.)
4685 05e5f5a5a73aced15337e3e87
5e5f5a5a73aced15337e3e87- 1We mustn’t stay here now.true
- 2We needn’t stay here now.false
- 3Must we not stay here now.false
- 4We couldn’t stay here now.false
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