Practice Question and Answer

Q: Permanent Hardness of water can be removed by adding 2056 0

  • 1
    Bleaching powder
    Correct
    Wrong
  • 2
    Chlorine
    Correct
    Wrong
  • 3
    Wasshing soda
    Correct
    Wrong
  • 4
    Potassium permanganate
    Correct
    Wrong
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Answer : 3. "Wasshing soda"
Explanation :

Answer: C) Wasshing soda Explanation: Hardness can be removed by adding sodium carbonate (washing soda) or by passing the water through an ion-exchange column.   Hardness in water is caused by dissolved magnesium ions and calcium ions. These can get into the water when it comes into contact with limestone and other rocks that contain calcium compounds. This can happen, for example, when rainwater flows over these rocks on its way to a reservoir.   Hardness in water is of two types. They are : 1. Temporary hardness 2. Permanent hardness   1. Temporary hardness:: Temporary hardness is caused by dissolved calcium hydrogen carbonate. 2. Permanent hardness:: Permanent hardness is caused by dissolved calcium sulfate. Unlike temporary hardness, it is not removed by boiling the water.

Q:

Direction: In the following questions, a passage given in the below. Read the passage carefully and choose the best answer to each question.

As my train was not due to leave for another hour, I had plenty of time to spare. After buying some magazines to read on the journey, I made my way to the luggage office to collect the heavy suitcase I had left there three days before. There were only a few people waiting, and I took out my wallet to find the receipt for my case. The receipt did not seem to be where I had left it. I emptied the contents of the wallet, and the railway tickets, money, scraps of paper, and photographs tumbled out of it; but no matter how hard I searched, the receipt was nowhere to be found.

I explained the situation sorrowfully to the assistant. The man looked at me suspiciously as if to say he had heared this type of story many times and asked me to describe the case. I told him that it was an old, brown looking object no different from the many suitcases I could see on the shelves. The assistant then gave me form and told me to make a list of the contents of the case. If they were correct, he said, I could take the case away. I tried to remember all the articles I had hurriedly packed and wrote them down.

After I had done this, I went to look among the shelves. There were hundreds of cases there and for one dreadful moment , it occurred to me that if someone had picked the receipt up , he could easily have  claimed the case already , Fortunately this had not happened , for after a time , I found the case lying on its side high up in the corner . After examining the articles inside, the assistant gave me the case . 

I took out my walled to pay him. I pulled out a ten-shilling note and out slipped my “lost” receipt with it! I could not help blushing . The assistant noded his head knowingly, as if to say that he had often seen this happen too!!

‘wrote them down’ mean

2056 0

  • 1
    copied them
    Correct
    Wrong
  • 2
    signed them
    Correct
    Wrong
  • 3
    made a note of them
    Correct
    Wrong
  • 4
    pointed at them
    Correct
    Wrong
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Answer : 3. "made a note of them"

Q: The year 1995 is the Golden Jubilee year of which of the following international organisations 2056 0

  • 1
    UNO
    Correct
    Wrong
  • 2
    NAM
    Correct
    Wrong
  • 3
    GATT
    Correct
    Wrong
  • 4
    ASEAN
    Correct
    Wrong
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Answer : 1. "UNO"

Q: SAARC is observing a decade(1991-2000) of which of the following 2056 0

  • 1
    Girl child
    Correct
    Wrong
  • 2
    Literacy
    Correct
    Wrong
  • 3
    Health services to rural poor
    Correct
    Wrong
  • 4
    Shelter for all
    Correct
    Wrong
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Answer : 1. "Girl child"

Q: Who was first Governor General of free India 2056 0

  • 1
    Linlithgow
    Correct
    Wrong
  • 2
    Willingdon
    Correct
    Wrong
  • 3
    Wavell
    Correct
    Wrong
  • 4
    Mountbaten
    Correct
    Wrong
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Answer : 4. "Mountbaten"

Q: A shopkeeper earns a profit of 10% after allowing a discount of 20% on the marked price. The cost price of the article whose marked price is Rs. 880, is 2056 1

  • 1
    Rs. 704
    Correct
    Wrong
  • 2
    Rs. 640
    Correct
    Wrong
  • 3
    Rs. 774
    Correct
    Wrong
  • 4
    Rs. 680
    Correct
    Wrong
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Answer : 2. " Rs. 640"
Explanation :

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Q:

Where was the Special Olympics World Games 2019 inaugurated?

2056 0

  • 1
    स्वीडन
    Correct
    Wrong
  • 2
    ऑस्ट्रिया
    Correct
    Wrong
  • 3
    जर्मनी
    Correct
    Wrong
  • 4
    आबू धोबी
    Correct
    Wrong
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Answer : 4. " आबू धोबी"

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