Practice Question and Answer

Q:

प्रकाशकीय तन्तु किस सिद्धान्त पर कार्य करते है ? 

2114 2

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    पूर्ण आन्तरिक परावर्तन
    Correct
    Wrong
  • 2
    व्यतिकरण
    Correct
    Wrong
  • 3
    प्रकीर्णन
    Correct
    Wrong
  • 4
    विवर्तन
    Correct
    Wrong
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Answer : 1. "पूर्ण आन्तरिक परावर्तन "

Q: Cactus Spines are Modified 2114 0

  • 1
    Stems
    Correct
    Wrong
  • 2
    Branches
    Correct
    Wrong
  • 3
    Leaves
    Correct
    Wrong
  • 4
    Roots
    Correct
    Wrong
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Answer : 3. "Leaves"
Explanation :

Answer: C) Leaves Explanation: Cactus spines are also known as modified bud scales, which are also called modified leaves.   Cactus spines occur in clusters in the axil of leaves.

Q: A Bus travels first half distance between two places with a speed of 40 kmph and the rest half distance with a speed of 60 kmph. The average speed of the Bus is ? 2114 0

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    48 kmph
    Correct
    Wrong
  • 2
    50 kmph
    Correct
    Wrong
  • 3
    46 kmph
    Correct
    Wrong
  • 4
    42 kmph
    Correct
    Wrong
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Answer : 1. "48 kmph"
Explanation :

Answer: A) 48 kmph Explanation: we know that speed = distance traveled/time takenlet the total distance traveled by the car is 2x km.then time taken by it to cover first half is x/60 hour.and for second half is x/40 hour.Then average speed= total distance travelled / total time taken.   i.e. 2xx60+x40   => 2x5x120   = 48 kmph.

Q: Which is the first country in the world to use drones for national mail service? 2113 0

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    Russia
    Correct
    Wrong
  • 2
    France
    Correct
    Wrong
  • 3
    Sweden
    Correct
    Wrong
  • 4
    China
    Correct
    Wrong
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Answer : 2. "France"
Explanation :

Answer: B) France Explanation: France became the first country in the world to use drones for national mail service.

Q: In India national, National Income is calculated by the method which is known as 2113 0

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    the combined method
    Correct
    Wrong
  • 2
    the income method
    Correct
    Wrong
  • 3
    the product method
    Correct
    Wrong
  • 4
    the expenditure method
    Correct
    Wrong
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Answer : 1. "the combined method"
Explanation :

Answer: A) the combined method Explanation: In India, National Income is calculated by the combined method. It combines two methods i.e product or output method and the income method. This is done to overcome the problem of deficiency of statistics. The product method endeavours to find out the net contribution to national income of all producing units. The income method adds up income and payments accruing of factors of production. This method is used in the tertiary  sector like government services banking etc and also in the commoity sector if output data is not available.

Q: Karthik could cover a distance of 200 km in 22 days while resting for 2 hrs. per day. In how many days (approx) he will cover a distance of 250 km while resting for 2 hrs. per day and moving with 2/3rd of the previous speed ? 2113 0

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    41.25 days
    Correct
    Wrong
  • 2
    37.5 days
    Correct
    Wrong
  • 3
    39.75 days
    Correct
    Wrong
  • 4
    40 days
    Correct
    Wrong
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Answer : 1. "41.25 days"
Explanation :

Answer: A) 41.25 days Explanation: Given Karthik can cover the distance of 200 kms resting 2 hrs per day in 22 days.   Let the initial speed be '1'   Hence, Time = 22(24hrs - 2)   Noe new speed = 2/3   Let the number of days he take be 'D'   Therefore, 2224-2x3200=D24-2x2250   D = 11 x 3 x 5/4 = 41.25 days. = 41 1/4 days.

Q:

निम्नलिखित में से कौन सा शिलालेख 'सुदर्शन झील' नामक झील की मरम्मत का उल्लेख करता है?

2113 0

  • 1
    खारवेला का हाथीगुम्फा शिलालेख
    Correct
    Wrong
  • 2
    समुद्रगुप्त की इलाहबाद प्रशस्ति
    Correct
    Wrong
  • 3
    पुलकेशिन का ऐहोल शिलालेख
    Correct
    Wrong
  • 4
    रूद्रदामन का जूनागढ़ शिलालेख
    Correct
    Wrong
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Answer : 4. "रूद्रदामन का जूनागढ़ शिलालेख"
Explanation :

1. पहली आठ पंक्तियाँ "सुदर्शन झील" नामक जलाशय के जीर्णोद्धार कार्य का एक ऐतिहासिक रिकॉर्ड प्रस्तुत करती हैं, जिसे 4 वीं शताब्दी ईसा पूर्व में महान मौर्य शासक चंद्रगुप्त मौर्य ने बनाया था।

2. भारत में शक शासक का सबसे बड़ा नाम उनके सिक्कों से जाना जाता है, लेकिन इससे भी अधिक उनके जूनागढ़ शिलालेख में सेका वर्ष 72 में अर्थात् 150 ई।

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