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RRB JE Exam Held ON 14-12-2014 PAPER CODE- RED TSD001114 (Part-2)

RRB JE Exam Held ON 14-12-2014
PAPER CODE- RED TSD001114

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26. If to, tp and tm are the optimistic, pessimistic and most likely time estimates of activity respectively, then the expected time ‘t’ of the activity will be :
A. (to + tp + tm)/3
B. (to + tp + 3tm)/5
C. (to + tp + 2tm)/4
D. (to + tp + 4tm)/6
Answer: D


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27. Find the value of [(768)3 + (232)3] / [(768)2 – (768 X 232) + (232)2] :
A. 1000
B. 536
C. 500
D. 268
Answer: A

28. For perfectly elastic bodies, the value of coefficient of restitution is :
A. zero
B. 0.5
C. 1.0
D. 0.25
Answer: C

29. If 1st January, 2014 was Wednesday, then 29th December, 2014 will be :
A. Thursday
B. Monday
C. Saturday
D. Friday
Answer: B
30. The thermal diffusivity of a substance is given by :
A. kr/c
B. k/
rc
C. kc/
r
D.
rc/k
[Where k = Thermal conductivity; r= Mass density; c= Specific heat]
Answer: B
31. Which of the following is biodegradable pollutant ?
A. DDT
B. BHC
C. Cotton cloth
D. Mercury
Answer: C
32. Sachin is younger than Rahul by 4 years. If their ages are in the ratio of 7 : 9, then how old is Sachin ?
A. 14 Years
B. 21 Years
C. 18 Years
D. 25 Years
Answer: A
33. Find the value of (1+2+3+4+- – – – – -+45) :
A. 2140
B. 2070
C. 1035
D. 1280
Answer: C
34. When an object is cut by a section plane, parallel to H.P. and perendicular to V.P., then the sectional view of the object is obtained in :
A. Top view
B. Front view
C. Left side view
D. Right side view
Answer: A
35. The pressure exerted on the walls of container by a gas is due to the fact that Gas molecules:
A. Strike to the walls of the container
B. Lose their kinetic energy
C. Get accelerated towards the wall
D. Change their momentum due to collision with the wall.
Answer: D
36. Which National Park is known for the ‘Asiatic Lions’ ?
A. Corbett National Park
B. Kanha National Park
C. Bandipur National Park
D. Gir National Park
Answer: D
37. Separation of water or sand or cement from a freshly mixed concrete is known as:
A. Segregation
B. Creeping
C. Bleeding
D. Flooding
Answer: C

38. The relationship between Bulk density (y), Dry density (yd) and water content (w) for soil is :
A. y = yd(1 + w)
B. yd = y(1 + w)
C. y = yd/1 + w
D. y = yd/(1-w)
Answer: A

39. Which one of the following instruments will be used for measuring electric current?
A. Voltmeter
B. Ammeter
C. Ohmmeter
D. Wavemeter
Answer: B
40. In a certain code language, ‘HAND’ is written as ‘SZMW’, then what will be the code of ‘MILK’
A. ORNP
B. PNRO
C. NROP
D. RNOP
Answer: C
41. Find the simple interest on Rs. 4800 at the rate of 81/2% per annum for a period of 2 years 3 months
A. Rs. 796
B. Rs. 816
C. Rs. 918
D. Rs. 990
Answer: C
42. Choose the option which correctly shows the relationship between Modulus of Elasticity (E) ; Modulus of Righdity (C) and Bulk Modulus (K):
A. E = (KC)/(K + C)
B. E = (2KC)/(2K + C)
C. E = (9KC)/(3K + C)
D. E = (3KC)/(K + 2C)
Answer: C
43. The term ‘ Operating System’ means :
A. A set of programmes which controls computer working
B. The way a computer operator works
C. Conversion of high level language into machine level language
D. None of these
Answer: A
44. Which of the following is not a cold working process ?
A. Extrusion
B. Slitting
C. Blanking
D. Lancing
Answer: A
45. The famous chinese pilgrim ‘Hieun Tsang’ visited India during the reign of :
A. Harshavardhan
B. Chandragupta II
C. Ashoka
D. Kanishka
Answer: A
46. The language which a computer can understand is ;
A. High Level Language
B. Machine Language
C. Assembly Language
D. All of these
Answer: B
47. The property of material by which it can be rolled into sheets is called:
A. Elasticity
B. Plasticity
C. Ductility
D. Malleability
Answer: D
48. Schmitt trigger is also known as :
A. Sweep circuit
B. Blocking oscillator
C. Squaring circuit
D. Stable multivibrator
Answer: C
49. A triac is a
A. Two terminal bi-directional switch
B. Three terminal bi-directional switch
C. Two terminal uni-directional switch
D. Three terminal uni-directional switch
Answer:  B

50. Cyclo converter converts ;
A. AC to DC
B. DC to AC
C. A fixed AC to a variable magnitude AC
D. A fixed DC to a variable magnitude DC
Answer: C

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