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Full Length Test #8
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Question 1 of 65
1. Question
1 pointsCategory: APTITUDEStatements: No bumper is suitor. All blazers are suitor. All tunics are bumpers.
Conclusions: I. Some tunics are blazers.
II. Some suitors are blazers.
III Some bumpers are blazers.Correct
The diagrams show that some suitors are blazers whereas there is no relationship between tunics and blazers or bumpers and blazers.
Incorrect
The diagrams show that some suitors are blazers whereas there is no relationship between tunics and blazers or bumpers and blazers.

Question 2 of 65
2. Question
1 pointsCategory: APTITUDEIt was _______ on the part of the senate that obstructed the adoption of a revolutionary teaching methodology in the executive MBA program.
Correct
Incorrect

Question 3 of 65
3. Question
1 pointsCategory: APTITUDEThe mole is a nocturnal insectivorous mammal regarded as pests by gardeners because of their burrowing activity spoiling lawns and gardens.
Correct
Incorrect

Question 4 of 65
4. Question
1 pointsCategory: APTITUDEThe cost of type 1 sugar is Rs.20 per kg and Type 2 sugar is Rs.40 per kg. If both type 1 and 2 are mixed in the ratio of 3:2, then the price per kg of the mixed variety of sugar is ________Rs.
Correct
Let the price of mixed variety be x per kg.
Cost of 1 kg of type 1 sugar = Rs. 20 => its proportional cost is 3(x20)
Cost of 1 kg of type 2 sugar = Rs. 40 => its proportional cost is 2 (40 – x)
3(x20) = 2(40x) => 3x – 60 = 80 – 2x => 5x = 140 => x = 28Incorrect
Let the price of mixed variety be x per kg.
Cost of 1 kg of type 1 sugar = Rs. 20 => its proportional cost is 3(x20)
Cost of 1 kg of type 2 sugar = Rs. 40 => its proportional cost is 2 (40 – x)
3(x20) = 2(40x) => 3x – 60 = 80 – 2x => 5x = 140 => x = 28 
Question 5 of 65
5. Question
1 pointsCategory: APTITUDETwo squares are chosen at random on a chess board. What is the probability that they have side common?

Question 6 of 65
6. Question
2 pointsCategory: APTITUDEIn Raisin in the Sun, Lorraine Hansberry does not reject integration or the economic and moral promise of the American dream; rather, she remains loyal to this dream while looking, realistically, at its incomplete realization. Once we recognize this dual vision, we can accept the play’s ironic nuances as deliberate social commentaries by Hansberry rather than as the “unintentional” irony that Bigsby attributes to the work. Indeed, a curiously persistent refusal to credit Hansberry with a capacity for intentional irony has led some critics to interpret the play’s thematic conflicts as mere confusion, contradiction, or eclecticism. Isaacs, for example, cannot easily reconcile Hansberry’s intense concern for her race with her ideal of human reconciliation. But the play’s complex view of Black selfesteem and human solidarity as compatible is no more “contradictory” than Du Bois’s famous, wellconsidered ideal of ethnic selfawareness coexisting with human unity, or Fanon’s emphasis on an ideal internationalism that also accommodates national identities and roles This question refers to the third sentence of the passage, which reads as follows: “Indeed, a curiously persistent refusal to credit Hansberry with a capacity for intentional irony has led some critics to interpret the play’s thematic conflicts as mere confusion, contradiction, or eclecticism.” The author of the passage would probably consider which of the following judgments to be most similar to the reasoning of the critics described in the third sentence?
Correct
Incorrect

Question 7 of 65
7. Question
2 pointsCategory: APTITUDEA community college is experiencing high turnover rates among its computer science faculty members. To rectify this problem, the computer science department head has proposed to the Dean that beginning next year, starting salaries for computer science instructors be increased by 10 percent to provide a more competitive pay package. Which of the following indicates a flaw in the department head’s plan?
Correct
Incorrect

Question 8 of 65
8. Question
2 pointsCategory: APTITUDEA jewelry store sells customized rings in which 3 gems selected by the customer are set in a straight row along the band of the ring. If exactly 5 different gems are available and if at least 2 gems in any given ring must be different, how many different rings are possible?
Correct
So you have unlimited jewels essentially, so there’s 5 possibilities for the first slot, 5 for the
second, and 5 for the third slot.
5 x 5 x 5 = 125 = Number of possibilities.
However, at least two gems must be different. So we subtract out the possibilities where all the gems are the same. There are five types of gems, so there are five possibilities where all the gems would be the same.
125 – 5 = 120.Incorrect
So you have unlimited jewels essentially, so there’s 5 possibilities for the first slot, 5 for the
second, and 5 for the third slot.
5 x 5 x 5 = 125 = Number of possibilities.
However, at least two gems must be different. So we subtract out the possibilities where all the gems are the same. There are five types of gems, so there are five possibilities where all the gems would be the same.
125 – 5 = 120. 
Question 9 of 65
9. Question
2 pointsCategory: APTITUDEIf n is a positive integer and n² is divisible by 72, then the largest positive integer that must divide n is
Correct
All perfect squares are composed of pairs of primes. So, let’s start by breaking 72 down into
primes:
72 = 2*2*2*3*3
If we break those primes into pairs, we get:
(2*2)*(3*3)*2
As we can see, there’s a “dangling 2”. In order to form the smallest possible perfect square
that’s a multiple of 72, we need to pair up that 2. So, the smallest possible perfect square that’s
a multiple of 72 is:
(2*2)*(3*3)*(2*2)
To find the root of that perfect square, we select one of each of our pairs of primes:
2*3*2 = 12
So, the smallest possible value of n is 12; accordingly, the largest positive integer that MUST
be a factor of n is also 12.Incorrect
All perfect squares are composed of pairs of primes. So, let’s start by breaking 72 down into
primes:
72 = 2*2*2*3*3
If we break those primes into pairs, we get:
(2*2)*(3*3)*2
As we can see, there’s a “dangling 2”. In order to form the smallest possible perfect square
that’s a multiple of 72, we need to pair up that 2. So, the smallest possible perfect square that’s
a multiple of 72 is:
(2*2)*(3*3)*(2*2)
To find the root of that perfect square, we select one of each of our pairs of primes:
2*3*2 = 12
So, the smallest possible value of n is 12; accordingly, the largest positive integer that MUST
be a factor of n is also 12. 
Question 10 of 65
10. Question
2 pointsCategory: APTITUDEIn the graduating class of a certain college, 48 percent of the students are male and 52 percent are female. In this class 40 percent of the male and 20 percent of the female students are 25 years old or older. If one student in the graduating class is randomly selected, approximately what is the probability that he or she will be less than 25 years old? upto 1 decimal place
Correct
Let’s say 100 students:
48 male, 52 female
40% of male would be 19.2
20% of female would be 10.4
approximately 29 are 25 or older, meaning there are 71 people under 25.
71/100 = 0.71 (closest to 0.7)Incorrect
Let’s say 100 students:
48 male, 52 female
40% of male would be 19.2
20% of female would be 10.4
approximately 29 are 25 or older, meaning there are 71 people under 25.
71/100 = 0.71 (closest to 0.7) 
Question 11 of 65
11. Question
1 pointsCategory: MASS TRANSFERWhich of the following represents effectiveness of a solvent?
Correct
Incorrect

Question 12 of 65
12. Question
1 pointsThe equilibrium moisture curve for a solid is shown below:
Group – I Group II P) Equilibrium moisture 1 Q) Bound moisture 2 R) Unbound 3 S) Free moisture 4 Which one of the following is correct match?
Correct
Incorrect

Question 13 of 65
13. Question
1 pointsCategory: MASS TRANSFERIn a mixture of Benzene vapor(A) and nitrogen (B) at a total pressure of 800 mm Hg and a temperature of 60^{o}C , the partial pressure of benzene is 100 mm Hg. Then absolute humidity of benzene in Kg benzene /kg nitrogen is – ___ ( upto three place decimal)
Correct
Incorrect

Question 14 of 65
14. Question
1 pointsCategory: MASS TRANSFERIf the specific heat of a gas and a vapor are 0.2 KJ/Kg K and 1.5 KJ/Kg K respectively and the humidity is 0.01 , the humid heat in KJ/Kg K is
Correct
C_{PG} + C_{PV }x H
0.2 + [ 1.5 x 0.01 ]
0.215.
Incorrect
C_{PG} + C_{PV }x H
0.2 + [ 1.5 x 0.01 ]
0.215.

Question 15 of 65
15. Question
1 pointsCategory: MASS TRANSFERIn a gas liquid contact operation the number of ideal stages N = . This is true when the stripping factor S is
Correct
N=separation/maximum separation if S=1
Incorrect
N=separation/maximum separation if S=1

Question 16 of 65
16. Question
1 pointsCategory: MASS TRANSFERFor stripping of a gas in a counter current stripper, the operating line
Correct
Incorrect

Question 17 of 65
17. Question
1 pointsCategory: MASS TRANSFERIn the McCabe theile diagram, if the xcoordinate of the point of intersection of the q line and the VLE curve is greater than x coordinate of the feed point, then the quality of feed is
Correct
Incorrect

Question 18 of 65
18. Question
1 pointsWhich of the following is correct for azeotropic distillation?
Correct
Incorrect

Question 19 of 65
19. Question
1 pointsCorrect
Incorrect

Question 20 of 65
20. Question
1 pointsCorrect
Incorrect

Question 21 of 65
21. Question
1 pointsCorrect
Incorrect

Question 22 of 65
22. Question
1 pointsCorrect
Incorrect

Question 23 of 65
23. Question
1 pointsA dice is tossed thrice. If the event of getting an even number is a success, then the probability of getting at least, two successes is
Correct
Incorrect

Question 24 of 65
24. Question
1 pointsIf the mole fraction of methane dissolved in light oil at 200K and 20 bar is 0.035, then the Henry’s law constant for methane in oil will be _____________.
(Assume fugacity coefficient of pure methane gas is 0.90 and mole fraction of methane in the gas phase is 0.95)Correct
Incorrect

Question 25 of 65
25. Question
1 pointsA solution of 2000 kg containing dissolved salt 50% by weight is cooled and 800kg of anhydrous salt is separated out. The percentage solubility of the salt at the lower temperature in kg/100 kg of water is _________________.
Correct
Incorrect

Question 26 of 65
26. Question
1 pointsMatch the following type of system.
ListI ListII
(P) Limekiln (1) Open system
(Q) A liquid cooling system of a car (2) Closed system(R) Air compressor
Correct
In limekiln and air compressor there is an exchange of mass between the system and surroundings, where as for liquid cooling system of car, there is an exchange of energy not mass
Incorrect
In limekiln and air compressor there is an exchange of mass between the system and surroundings, where as for liquid cooling system of car, there is an exchange of energy not mass

Question 27 of 65
27. Question
1 pointsFor a constant volume gas, thermometer _______ is the thermometric property whereas for a
constant pressure gas, thermometer ________ is the thermometric property.Correct
Pressure, volume
Incorrect
Pressure, volume

Question 28 of 65
28. Question
1 pointsAir flows through a pipeline under the following conditions:
Section A: 30ºC , 1.5bar, 20m/s, 2cm inside diameter
Section B: 30ºC , 1.2bar, 5cm inside diameter
At 30OC and 1.5 bar pressure, air has a density of 1.75kg/m³. The velocity at section B will be
________m/s.Correct
Incorrect

Question 29 of 65
29. Question
1 pointsA hydrometer has a stem diameter of 0.8cm and a mass of 0.075kg. The distance on the scale between specific gravities marking 1.2 and 1.3 will be _________ (In cm).
Correct
Incorrect

Question 30 of 65
30. Question
1 pointsWater in a turbulent flow flows over a flat plate. At a distance of 0.5m from the leading edge of the plate, the boundary layer is 0.00327m thick. What is the boundary layer thickness (m) at 0.75 from the leading edge of the plate?
Correct
Incorrect

Question 31 of 65
31. Question
1 pointsIt is desired to separate quartz particles( ρ = 2650 kg /m³) from galena particles ( ρ = 7500 kg/ m³) based on the difference in setting velocities in water. The particles are of same shape and size. The ratio of settling velocities of quartz particles to galena particles is
_______________.Correct
Incorrect

Question 32 of 65
32. Question
1 pointsCrushing rolls of 80cm diameter are set so that crushing surfaces are 10 mm apart and angle of nip is 31°. If the working face of the rolls is 0.4 m long, and rolls are running at 4 Hz, the maximum size of feed and volumetric flow rates are respectively
Correct
Incorrect

Question 33 of 65
33. Question
1 pointsCorrect
Incorrect

Question 34 of 65
34. Question
1 pointsA block is completely immersed in water. The tension in the rope of the cane due to rectangular concrete block is 3.40 kN. A density of block is 3 2350 kg / m ³. The volume of block m³ is________________
Correct
Incorrect

Question 35 of 65
35. Question
1 pointsA crusher accepts a feed material having a volume surface mean diameter of 17 mm and gives a product of volumesurface mean diameter of 5mm. The power required to crush 14 tonnes per hour is 8 kW. What will be new power (kW) consumption of crusher capacity of 11 tonnes per hour?
Correct
Incorrect

Question 36 of 65
36. Question
1 pointsSteam at 150ºC is transferred from boiler to the turbine in a pipeline whose outer diameter is 200mm and the inner diameter is 180mm. The surface temperature of the pipeline is 148.5ºC. The thermal conductivity of the tube material is 45W/mK. Find the rate of heat loss from a length of 1m of the pipeline.
Correct
Incorrect

Question 37 of 65
37. Question
1 pointsCorrect
Driving force for heterogeneous nucleation < homogeneous nucleation
Due to rough surfaces, heterogeneous nucleation occurs in the second both. So less driving force is required.Incorrect
Driving force for heterogeneous nucleation < homogeneous nucleation
Due to rough surfaces, heterogeneous nucleation occurs in the second both. So less driving force is required. 
Question 38 of 65
38. Question
1 pointsA black body has a total hemispherical emissive power of 2 8 kW /m² . Its surface temperature and the wavelength of maximum emission are respectively
Correct
Incorrect

Question 39 of 65
39. Question
1 pointsThe heat transfer coefficient due to convection and radiation is 5W/ m² .K. The overall heat transfer coefficient due to radiation and convection for air steam at 170°C, running in a large room at 35°C is 16W /m² .K. Calculate emissivity of the pipe surface
Correct
Incorrect

Question 40 of 65
40. Question
1 points2 large parallel plates have the same emissivity. The heat transfer between the two is Q. To reduce the heat transfer, 10 radiation shields are introduced between them. What is the percentage reduction in heat transfer?
Correct
Incorrect

Question 41 of 65
41. Question
1 pointsA long square rod of side 0.4m and length 1 m has thermal conductivity of 0.4W/mK and is exposed to air at 300k. If the transfer coefficient is 4 W/m².K , then the Biot number is ______________.
Correct
Incorrect

Question 42 of 65
42. Question
1 pointsThe equilibrium constant of a reaction A + B → 2R is 4. If 5 moles of A reacts with b moles of B, the % transformation of A is 37.5%. Find b.
Correct
Incorrect

Question 43 of 65
43. Question
1 pointsCorrect
Incorrect

Question 44 of 65
44. Question
1 pointsCorrect
Incorrect

Question 45 of 65
45. Question
1 pointsCorrect
Incorrect

Question 46 of 65
46. Question
1 pointsCorrect
Incorrect

Question 47 of 65
47. Question
1 pointsCorrect
Incorrect

Question 48 of 65
48. Question
1 pointsCorrect
Incorrect

Question 49 of 65
49. Question
1 pointsWhich of the following is not true regarding the total reflux ratio?
Correct
Incorrect

Question 50 of 65
50. Question
1 pointsA mixture containing 45% m heptane and 59% methyl benzene are desired to separate by distillation at 760 mm Hg to produce a distillate containing 96% mheptane and a residue containing 96% of methyl benzene. If the point of intersection of equilibrium curve, q line and operating line of rectifying section is (0.45, 0.59), calculate the minimum reflux ratio for saturated liquid feed.
Correct
Incorrect

Question 51 of 65
51. Question
1 pointsAn equimolar mixture of methanol and water is separated by a fractionating column such that overhead product contains 94 mole% methanol and bottom fraction contains 90 mole% water. Find the minimum number of plates required in the fractionating column such that relative volatility is 2.4.
Correct
Incorrect

Question 52 of 65
52. Question
1 pointsCorrect
Incorrect

Question 53 of 65
53. Question
1 pointsThe vapour pressure of water at 50°C is 42 mm Hg. If the partial pressure of water vapour at 1 atm is 24 mm Hg, the percentage humidity is ___________.
Correct
Incorrect

Question 54 of 65
54. Question
1 pointsA thermometer having a time constant (τ) is initially at 100°C. It is immersed in a bath maintained at 150ºC at t = 0. If the temperature reading at 2.5 min is 135.67ºC, then the τ will be __________ (in min).
Correct
Incorrect

Question 55 of 65
55. Question
1 pointsCorrect
Incorrect

Question 56 of 65
56. Question
1 pointsA 150L oxygen cylinder contains gas at 300k and 10bar. What is the mass of oxygen in the cylinder?
Correct
Incorrect

Question 57 of 65
57. Question
1 pointsCorrect
Incorrect

Question 58 of 65
58. Question
1 pointsCorrect
Incorrect

Question 59 of 65
59. Question
1 pointsCorrect
Incorrect

Question 60 of 65
60. Question
1 pointsA rotary pump costs Rs : 25,000 fully installed. The estimated salvage value of the pump is Rs.3000. If the pump gives 10 years of service, what will be the depreciation charge in the second year by decline balance method?
Correct
Incorrect

Question 61 of 65
61. Question
1 pointsA desalination plant decides to increase its capacity. For this, it requires a pump of a higher capacity. The cost of a 10 lt sec pump was Rs. 48,729. The company cannot invest more than Rs. 1,00,000 on the pump. If the capacity exponent is 0.6, what is the maximum capacity of the pump the company can install?
Correct
Incorrect

Question 62 of 65
62. Question
1 pointsA new storage tank can be purchased and installed for Rs. 10,000. This would last for 10 years. Alternately, an old wornout tank can be repaired and used for 3 years neither tank has any scrap value. Money is worth 9% compounded annually. On the basis of equal capitalized costs, the amount that can be spent on repairing the old tank (in Rs.) is _____________.
Correct
Incorrect

Question 63 of 65
63. Question
1 pointsFor a torispherical head, stress concentration factor in order to avoid buckling is
Correct
Incorrect

Question 64 of 65
64. Question
1 pointsCorrect
Incorrect

Question 65 of 65
65. Question
1 pointsCorrect
Incorrect
0sincostansin^{1}cos^{1}tan^{1}πex^{y}x^{3}x^{2}e^{x}10^{x}^{y}√x^{3}√x√xlnlog()1/x%n!789+MS456–M+123×M0.EXP÷MR±RNDC=MC 
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