2023 2024 Student Forum > Management Forum > Main Forum

 
  #2  
2nd April 2016, 11:29 AM
Super Moderator
 
Join Date: May 2012
Re: NBRC Practice Questions

No need of worry buddy I will get the National Brain Research Centre(NBRC) exam paper so that you can check it easily.


Here is the exam paper
PHYSICS
1. Name the process or processes which alternate (s) the passage of gamma rays through
(1) Photoelectric effect
(2) Compton Recoils
(3) Pair Production
(4) All of these

2. How many quantum numbers do characterise an electron within an atom :
(1) Six
(2) Five
(3) Four
(4) Three

3. Write down the total number of particles inside the nucleus in terms of mass number(A)
(1) A–2Z
(2) 2A–Z
(3) 3A–2Z
(4) None of these

4. What is the name of the detecting device for discovery of positron :
(1) Electron Microscope
(2) Geiger-Muller Counter
(3) Bubble Chamber
(4) Cloud Chamber

5. Give the name of the process by which a positron and an electron coalesce to form photons :
(1) Pair Annihilation
(2) Compton Scattering
(3) Bremhausstrahlung
(4) Rutherford Scattering

CHEMISTRY
6. When solid sodium chloride crystallises from a saturated solution, the entropy change of
(1) Decreases
(2) Increases
(3) Zero
(4) Remains same with the surrounding

7. Pure water has a PH = 7 at 25 C. The water is heated to 90 C. Choose the right answer:
(1) Kw value will decrease and water will be alkaline
(2) Kw Value will decrease but water will remain neutral
(3) Kw Value will increase and water will be acidic
(4) Kw value will increase but water will remain neutral

8. The vapour pressure of pure components ‘X’ and ‘Y’ are 100 torr and 50 torr respectively
(1) 0.33
(2) 0.66
(3) 0.80
(4) 0.50

9. The half life time for a reaction at initial conc. of 0.1 mole/litre and 0.4 mole/litre are 200 sec
(1) 0
(2) 1
(3) 2
(4) 3

10. Under equilibrium condition for the reaction 2C(s)+O2(g) 2CO(g) the total pressure is 12
(1) 16
(2) 0.5
(3) 2
(4) 32

BIOLOGY
11. The salivary gland of leech secrete the anticoagulating factor :
(1) Hypotoxin
(2) Antitoxin
(3) Hirudin
(4) None of these

12. The beak is toothed in :
(1) Ostrich
(2) Archaeopteryx
(3) Penguin
(4) Kiwi

13. Bombykol is :
(1) A hormone
(2) An enzyme
(3) A pheromon
(4) None of these

14. The major constituent of blood plasma (more than half) is :
(1) Protein
(2) Inorganic salts
(3) Fatty substance
(4) Sugar

15. Annual Ring indicates :
(1) Age of the tree
(2) Branching point
(3) Scale bark
(4) Adventitious root


Quick Reply
Your Username: Click here to log in

Message:
Options

Thread Tools Search this Thread



All times are GMT +5. The time now is 02:41 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
SEO by vBSEO 3.6.0 PL2

1 2 3 4