Practice Question and Answer

Q: Reuptake refers to the 2421 0

  • 1
    reabsorption of excess neurotransmitter molecules by a sending neuron
    Correct
    Wrong
  • 2
    release of hormones into the bloodstream
    Correct
    Wrong
  • 3
    movement of neurotransmitter molecules across a synaptic gap
    Correct
    Wrong
  • 4
    inflow of myelin through an axon membrane
    Correct
    Wrong
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Answer : 1. "reabsorption of excess neurotransmitter molecules by a sending neuron"
Explanation :

Answer: A) reabsorption of excess neurotransmitter molecules by a sending neuron Explanation: Reuptake refers to the process in the brain of neurons to retrieve chemicals that were not received by the next neuron. Neurons are cells in the brain that have miniscule spaces between them. They communicate with each other by sending chemicals across the space to the next neuron.

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Answer : 2. "0"
Explanation :

Answer: B) 0 Explanation: There are 10 digits. Now, third digit from the right means (10-3+1 = ) 8th digit from the left.  But, from the question , third  and eighth digits are interchanged. Hence, the required digit is the third digit of the given number, ie 0.

Q:

PQRS एक समान्तर चतुर्भुज है, कोण  SPQ 60 डिग्री है  एवं QR=40, सेमी, PQ=10 सेमी तो समान्तर चतुर्भुज का क्षेत्रफल ज्ञात कीजिये

2420 0

  • 1
    100√3 sq.cm
    Correct
    Wrong
  • 2
    200√3 sq.cm
    Correct
    Wrong
  • 3
    100 sq.cm
    Correct
    Wrong
  • 4
    500 sq.cm
    Correct
    Wrong
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Answer : 2. "200√3 sq.cm"

Q: Out of 135 applicants for a post, 60 are graduates and 80 have experience. What is the ratio of minimum to maximum numberof graduates having experience? 2419 0

  • 1
    12:1
    Correct
    Wrong
  • 2
    5:1
    Correct
    Wrong
  • 3
    1:5
    Correct
    Wrong
  • 4
    1:12
    Correct
    Wrong
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Answer : 4. "1:12"
Explanation :

Answer: D) 1:12 Explanation: Given total applicants = 135Given graduates are G=60 Otherthan graduates=135-60 = 75Given experienced candidates = 801) For maximum number of graduates have experience    Total graduates to have experience = 60 2) For minimum number of graduates have experience    Remaining after taking other than graduates in experience= 80-75 = 5

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Answer : 2. "1500"

Q: Which type of molecule is CF4? 2419 0

  • 1
    nonpolar, with a symmetrical distribution of charge
    Correct
    Wrong
  • 2
    polar, with an asymmetrical distribution of charge
    Correct
    Wrong
  • 3
    nonpolar, with an asymmetrical distribution of charge
    Correct
    Wrong
  • 4
    polar, with a symmetrical distribution of charge
    Correct
    Wrong
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Answer : 1. "nonpolar, with a symmetrical distribution of charge"
Explanation :

Answer: A) nonpolar, with a symmetrical distribution of charge Explanation: CF4 is tetrahedral. Since the four 'F' atoms have the same electronegativity values, there is no bias in electron distribution toward any one.   Therefore, electron/charge distribution is symmetrical, which also means that the molecule is nonpolar.   Hence, CF4 is nonpolar molecule with a symmetrical distribution of charge.

Q: पंचकोण के सभी आंतरिक कोणों का योग है 2419 1

  • 1
    180 डिग्री
    Correct
    Wrong
  • 2
    360 डिग्री
    Correct
    Wrong
  • 3
    540 डिग्री
    Correct
    Wrong
  • 4
    640 डिग्री
    Correct
    Wrong
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Answer : 3. "540 डिग्री"

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