Examination 1

                  Tribhuvan University Institute of Engineering Entrance Examination Board 

                                        BE/B.Arch. Online Entrance Examination

                                     IOE FREE EXAM   [30 questions]  

                              Time: 45min 

 

↣ You have to check question mark ( ? ) button on correct option, give instant answer. 

↣ Click on  Next➤ buton to navigate to next page. 

↣ Click on Previous◄ buton to navigate to previous page. 

↣ Informations along with time remaining, total attempted and total questions will be displayed at top of your page. 

  

1 / 30

1. Force applied normally on the handle of a door is an example of: [1 marks]
   1.   Collision force
   2.   Rotational motion
   3.   Linear motion
   4.   All
2. Percentage of silver in german silver is: [1 marks]
   1.   100%
   2.   0%
   3.   10%
   4.   1%
3. Two bodies at different temperatures are kept in contact. If the body at higher temperature gets hotter than it violates which law of thermodynamics? [1 marks]
   1.   First law of thermodynamics
   2.   Zeroth law of thermodynamics
   3.   Second law of thermodynamics
   4.   Third law of thermodynamics
4. tan-¹1+tan-¹2+tan-¹3= [2 marks]
   1.   π
   2.   2π
   3.   π/2
   4.   0
5. Find the domain of the function f(x) given by f(x)=x−2/3−x [1 marks]
   1.   R-Z
   2.   R-{2}
   3.   R-{3}
   4.   R
6. The product obtained on reaction of C₂H₅Cl with hydrogen over palladium carbon is [2 marks]
   1.   C₂H₄
   2.   C₃H₈
   3.   C₄H₁₀
   4.   C₂H₆
7. If y=cos(5−3t) then dy/dx= [1 marks]
   1.   -5sin(5-3t)
   2.   -3sin(5-3t)
   3.   3sin(5-3t)
   4.   5sin(5-3t)
8. Slope of the line whose inclination is 120 [1 marks]
   1.   −1/√3
   2.   1/√3
   3.   −√3
   4.   1/2
9. The decay constant of a radioactive element is 1.5 x 10⁻⁹ per second. Its mean life (in seconds) will be [2 marks]
   1.   0.35 x 10⁸
   2.   1.5x10⁹
   3.   6.67 x 10⁸
   4.   4.62 x 10⁸
10. You are marooned on a frictionless horizontal surface and cannot exert any horizontal force by pushing against the surface. How can you get off? [1 marks]
    1.   By rolling your body on the surface
    2.   By running on the plane
    3.   By spitting or sneezing
    4.   By jumping
11. For a p-type semiconductor, which of the following statements is true? [1 marks]
    1.   Electrons are the majority carriers and trivalent atoms are the dopants.
    2.   Electrons are the majority carriers and pentavalent atoms are the dopants.
    3.   Holes are the majority carriers and trivalent atoms are the dopants.
    4.   Holes are the majority carriers and pentavalent atoms are the dopants
12. A monoprotic acid in 1.00 Msolution is 0.01% ionised. The dissociation constant of this acid is
    1.   10⁻⁵
    2.   10⁻⁶
    3.   10⁻⁸
    4.   10⁻⁷
13. Which of the following is used to remove temporary hardness of water? [1 marks]
    1.   Hydrolith
    2.   Plaster of Paris
    3.   Epsyum
    4.   Slaked lime
14. Which is flux used in vertical retort furnace? [1 marks]
    1.   None of them
    2.   CaO
    3.   P₂O₅
    4.   SiO₂
15. In Haber process of Ammonia production the element used as catalytic promoter to increase the activity of Iron catalyst is ....................... [1marks]
    1.   V (Vanadium)
    2.   Mo (Molybednum)
    3.   W (Tungston)
    4.   NI (Nickel)
16. N₂ combines with metal to form [1 marks]
    1.   Nitride
    2.   Nitrosyl chloride
    3.   Nitrate
    4.   Nitrite
17. Which of the following is not oxidised by Mn0₂ ? [1 marks]
    1.   F⁻
    2.   Br⁻
    3.   CI⁻
    4.   I⁻
18. If the amplitude of the sound is made 3 times its initial value, then its loudness will become _______________ times its initial value. [2 marks]
    1.   4
    2.   16
    3.   9
    4.   25
19. A body floats in a liquid contained in a beaker. If the whole system falls under gravity, then the upthrust on the body due to liquid is : [1 marks]
    1.   Equal to the weight of the body in air
    2.   Zero
    3.   Equal to the weight of the body in liquid
    4.   Equal to the weight of the immersed part of the body
20. Liquid generally ........ on heating and ........ on cooling [1 marks]
    1.   Expand, no change
    2.   Expand, contract
    3.   Contract, no change
    4.   Contract, expand
21. For an A.P. a=7,d=3,n=8, find a8. [1 marks]
    1.   16
    2.   36
    3.   18
    4.   28
22. Electrons revolve round the nucleus in well-defined orbits, like planets revolve round the sun' was the brainchild of. [1 marks]
    1.   Arnold Sommerfeld
    2.   Ernest Rutherford
    3.   Max Born
    4.   Niels Bohr
23. A triangle has vertices A(1,-1) B(2,4) and C(6,0) The length of the median from A is [2 marks]
    1.   2√3
    2.   2√2
    3.   3√2
    4.   3
24. If f(x)=x sinx, then f′(π/2) is equal to: [1 marks]
    1.   0
    2.   1
    3.   1/2
    4.   -1
25. 5 amperes is passed through a solution of zinc sulphate for 40 minutes. Find the amount of zinc deposited at the cathode [2 marks]
    1.   0.4065 gm
    2.   65.04 gm
    3.   40.65 gm
    4.   4.065 gm
26. sodium hydroxide is prepared by the method [1 marks]
    
    1.   Castner cell
    2.   Solvay process
    3.   Castner Kellner cell
    4.   Down's cell
27. A pair of numerical coordinates is required to specify each point in a ......... plane. [1 marks]
    1.   Cartesian
    2.   One-dimesion
    3.   both A and B
    4.   none of the above
28. A bag contains 3 white and 5 black balls.One ball is drawn at random.Then the probability that it is white is: [1 marks]
    1.   5/8
    2.   3/8
    3.   1/8
    4.   3/5
29. Examples of radiations are : [1 marks]
    1.   a microwave oven
    2.   refrigeration
    3.   none of the above
    4.   monsoon
30. Coordinate axes divide plane into how many parts? [1 marks]
    1.   2
    2.   1
    3.   4
    4.   3