Quizsummary
0 of 65 questions completed
Questions:
 1
 2
 3
 4
 5
 6
 7
 8
 9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
Information
Full Length Test #11
You have already completed the quiz before. Hence you can not start it again.
Quiz is loading...
You must sign in or sign up to start the quiz.
You have to finish following quiz, to start this quiz:
Results
0 of 65 questions answered correctly
Your time:
Time has elapsed
You have reached 0 of 0 points, (0)
Average score 

Your score 

Categories
 Not categorized 0%
 APTITUDE 0%
 CHEMICAL REACTION ENGINEERING 0%
 MASS TRANSFER 0%
Pos.  Name  Entered on  Points  Result 

Table is loading  
No data available  
 1
 2
 3
 4
 5
 6
 7
 8
 9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 Answered
 Review

Question 1 of 65
1. Question
1 pointsCategory: APTITUDEShe unnecessarily picked up a quarrel with Mr Kumar and stormed out of the party.
Correct
Incorrect

Question 2 of 65
2. Question
1 pointsCategory: APTITUDELionesses with worn out or missing teeth are not ostracized from their pride, but live out their old age supported by the hunting of younger females.
Correct
Incorrect

Question 3 of 65
3. Question
1 pointsCategory: APTITUDEThe population of tigers in the National Park is increasing steadily, and this is a source of encouragement to those who have worked so hard to fund the conservation effort.
Correct
Incorrect

Question 4 of 65
4. Question
1 pointsCategory: APTITUDEWhat value will be obtained if the sum of (11)² and (4)³ is subtracted from the square of 27.
Correct
Incorrect

Question 5 of 65
5. Question
1 pointsCategory: APTITUDEAtul does half as much work as Anshu in 4/5 of the time. If together they take 16 days to complete the work, how much time shall Anshu take to do it?
Correct
Incorrect

Question 6 of 65
6. Question
2 pointsCategory: APTITUDEVirtually all health experts agree that secondhand smoke poses a serious health risk. After the publication of yet another research paper explicating the link between exposure to secondhand smoke and a shorter life span, some members of the State House of Representatives proposed a ban on smoking in most public places in an attempt to promote quality of life and length of lifespan. Which of the following, if true, provides the most support for the actions of the State Representatives?
Correct
Incorrect

Question 7 of 65
7. 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 Indicate the best answer: The author’s primary purpose in the passage is to
Correct
Incorrect

Question 8 of 65
8. Question
2 pointsCategory: APTITUDEAlicia lives in a town whose streets are on a grid system, with all streets running eastwest or northsouth without breaks. Her school located on a corner, lies three blocks south and three blocks east of his home, also located on a corner. If Alicia is equally likely to choose any possible path from home to school, and if she only walks south or east, what is the probability that she will walk south for the first two blocks?
Correct
We know that without any restriction she has to go 3 blocks south and 3 blocks east to get to work
Hence, we need to find the number of arrangements of the anagram SSSEEE
Total arrangements : 6!/3!*3! = 20we know that she has to take 2 blocks south 1st. So, 1st 2 are fixed SS. The remaining 4 steps
we will have to find the number of arrangements of SEEE
= 4!/3!*1! = 4
Hence Probability = No of fav/total = 4/20 = 1/5Incorrect
We know that without any restriction she has to go 3 blocks south and 3 blocks east to get to work
Hence, we need to find the number of arrangements of the anagram SSSEEE
Total arrangements : 6!/3!*3! = 20we know that she has to take 2 blocks south 1st. So, 1st 2 are fixed SS. The remaining 4 steps
we will have to find the number of arrangements of SEEE
= 4!/3!*1! = 4
Hence Probability = No of fav/total = 4/20 = 1/5 
Question 9 of 65
9. Question
2 pointsCategory: APTITUDEIf y ≠ 3 and 2x/y is a prime integer greater than 2, which of the following must be true?
I. x = y
II. y = 1
III. x and y are prime integers.Correct
We know that 2x/y is a prime greater than 2. Therefore, x/y must be greater than 1, so
eliminate (I).
We can quickly eliminate II and III by picking numbers. If we set 2x/y = 3 (a prime number
greater than 2), we get:
x/y = 3/2
So, any two numbers in a ratio of 3:2 will suffice. We can let x=6 and y=4 to see that neither
statement II nor III (nor I, for that matter) must be true.
As an aside, although it wasn’t necessary for this question, we should remember to be careful
about the assumptions we make. Nowhere in the question stem does it say that x and y have to
be integers – we certainly could have picked noninteger values to eliminate all 3 statements
as well.
The answer is A (none).Incorrect
We know that 2x/y is a prime greater than 2. Therefore, x/y must be greater than 1, so
eliminate (I).
We can quickly eliminate II and III by picking numbers. If we set 2x/y = 3 (a prime number
greater than 2), we get:
x/y = 3/2
So, any two numbers in a ratio of 3:2 will suffice. We can let x=6 and y=4 to see that neither
statement II nor III (nor I, for that matter) must be true.
As an aside, although it wasn’t necessary for this question, we should remember to be careful
about the assumptions we make. Nowhere in the question stem does it say that x and y have to
be integers – we certainly could have picked noninteger values to eliminate all 3 statements
as well.
The answer is A (none). 
Question 10 of 65
10. Question
1 pointsCategory: APTITUDEThere are 4 letters and 4 corresponding envelopes. If we put the 4 letters into the envelopes at random, what is the probability that only one letter was into the exact envelope?
Correct
P(only 1 letter in the correct envelope) = P(1st correct and 2,3,4 in wrong) OR P(2nd correct
and 1,2,3 in wrong) OR P(3rd correct and 1,2,4 in wrong) OR P(4th correct and 1,2,3 in
wrong)
P(1st correct) = 1/4 (1 correct out of 4 envelopes)
P(2nd wrong) = 2/3
P(3rd wrong) = 1/2
P(4th wrong) = 1/1
Hence, P(1st correct and 2,3,4 in wrong) = 1/4*2/3*1/2 = 1/12
Same will be the probability for the other 3 cases
Hence required Probability = 4*1/12 = 1/3.Incorrect
P(only 1 letter in the correct envelope) = P(1st correct and 2,3,4 in wrong) OR P(2nd correct
and 1,2,3 in wrong) OR P(3rd correct and 1,2,4 in wrong) OR P(4th correct and 1,2,3 in
wrong)
P(1st correct) = 1/4 (1 correct out of 4 envelopes)
P(2nd wrong) = 2/3
P(3rd wrong) = 1/2
P(4th wrong) = 1/1
Hence, P(1st correct and 2,3,4 in wrong) = 1/4*2/3*1/2 = 1/12
Same will be the probability for the other 3 cases
Hence required Probability = 4*1/12 = 1/3. 
Question 11 of 65
11. Question
1 pointsMatch the following:
ListI ListII
(a) The ratio of existing moles of vapour per mole of (1) Relative humidity
vapour free gas to the moles of vapour that would
be present per mole of vapour free gas, if the
mixture were saturated at the existing
temperature and pressure(b) Percentage saturation of a vapour bearing gas is (2) Relative saturation
always less than the(c) For water evaporating into unsaturated air under (3) Percentage
adiabatic saturation conditions and at constant
pressure, ______ remains constant through the
period of vaporization temperature (4) Dry bulb temperature
(5) Wet bulb temperature
(6) HumidityCorrect
Incorrect

Question 12 of 65
12. Question
1 pointsCategory: MASS TRANSFERIn binary distillation, the separation of the components is easier if the relative volatility (α) is __
Correct
Incorrect

Question 13 of 65
13. Question
1 pointsWhen a multistage tray towers uses a minimum reflux ratio it implies__
Correct
Incorrect

Question 14 of 65
14. Question
1 pointsCategory: MASS TRANSFERAbsorption operation formed at
Correct
Incorrect

Question 15 of 65
15. Question
1 pointsCategory: MASS TRANSFERIn small columns local efficiency is ___Murphee efficiency , in large columns local efficiency is ___ Murphee efficiency
Correct
Incorrect

Question 16 of 65
16. Question
1 pointsCategory: MASS TRANSFERFor saturated liquid feed, slope of q line is
Correct
Incorrect

Question 17 of 65
17. Question
1 pointsFor Superhead vapor, the value of q,( quality of feed) is
Correct
Incorrect

Question 18 of 65
18. Question
1 pointsMatch the following:
Line Type of feed P I) Partial vapor Q II) Cold feed R III) Saturated liquid S IV) Vapor at dew point Correct
Incorrect

Question 19 of 65
19. Question
1 pointsCategory: CHEMICAL REACTION ENGINEERINGMatch the following in GroupI with those of GroupII
GroupI GroupII P) Porous catalyst 1) Selectivity Q) Parallel reactions 2) Shrinking core model R) Non ideal tubular reactor 3)Thiele modulus S) Gas solid non catalytic reactor 4) Dispersion number Correct
Incorrect

Question 20 of 65
20. Question
1 pointsCategory: CHEMICAL REACTION ENGINEERINGThe rate of liquid phase reversible reaction A B in [Kmol/m^{3}.min] at 298 K is r_{A} = 0.02 , C_{A} – 0.01 C_{B} , where the concentrations C_{A} and C_{B }are expressed in (Kmol/m^{3}). What is the max. limiting conversion of A achievable in an isothermal CSTR at 298K assuming pure A is fed at the inlet? Upto 2 decimal places
Correct
Incorrect

Question 21 of 65
21. Question
1 pointsThe first order liquid phase reaction A→P is to be carried out isothermally in the following ideal reactor configuration
P) A 1m^{3} CSTR followed by a 1m^{3} PFR
Q) A 2m^{3} CSTR
R) A 1m^{3} PFR followed by a 1m^{3} CSTR
S) A 1m^{3} CSTR followed by a 1m^{3} CSTR
The overall exit conversions X for the above configuration P,Q,R and S assuming identical inlet conditions and temperature are related as
Correct
compare q ans s , if u beak 1 cstr into 2 , we will get pfr like behaviour and pfr has more conversion hence conversion in s will be more than q .
now between p and r conversion wont effect the sequence in 1st order reaction hence conversion in p=q
Incorrect
compare q ans s , if u beak 1 cstr into 2 , we will get pfr like behaviour and pfr has more conversion hence conversion in s will be more than q .
now between p and r conversion wont effect the sequence in 1st order reaction hence conversion in p=q

Question 22 of 65
22. Question
1 pointsCategory: CHEMICAL REACTION ENGINEERINGAn exothermic gas phase reaction proceeds according to the equation proceeds according to the equation 3A + 2B C. The equilibrium conversion for this reaction
Correct
Incorrect

Question 23 of 65
23. Question
1 pointsCategory: CHEMICAL REACTION ENGINEERINGThe tracer curve shown in figure,
The corresponding E curve is
Correct
Incorrect

Question 24 of 65
24. Question
1 pointsCategory: CHEMICAL REACTION ENGINEERINGMatch the following
Column – I Column – II P) PFR I) 1/τ e^{t/τ} Q) CSTR II) δ(t−τ)δ(t−τ) R) Batch reactor III) sint Correct
Incorrect

Question 25 of 65
25. Question
1 pointsCategory: CHEMICAL REACTION ENGINEERINGStatement 1: For CSTR dispersion number is zero.
Statement 2: For PFR Peclet number is zero.
Which of the following statement is correct?
Correct
Incorrect

Question 26 of 65
26. Question
1 pointsCategory: CHEMICAL REACTION ENGINEERINGA liquid macrofluid reacts according to A→R as it follows through a vessel. Find the conversion of A for the flow pattern of fig. shown, CA_{o} = 4 mol/lit, r_{A} = K , K = 1 mol/lit.min.
Correct
Incorrect

Question 27 of 65
27. Question
1 pointsPick out the wrong statement
Correct
The effect of pressure on the heat capacity of gases at the pressure above one atmosphere and above the critical temperature is negligible.
Incorrect
The effect of pressure on the heat capacity of gases at the pressure above one atmosphere and above the critical temperature is negligible.

Question 28 of 65
28. Question
1 pointsWhat is the ratio of 3 NH present (on dry basis) in 1kg of ammonia – air mixture to the amount of watervapour present (on dry basis) in 1kg of water vapour – air mixture, if partial pressures of NH3 vapour and water vapour are 30mm and 40mm respectively?
Correct
Incorrect

Question 29 of 65
29. Question
1 pointsCorrect
Internal energy is a function temperature in order to have the same internal energy, the final temperature should be the same as that of initial temperature.
Incorrect
Internal energy is a function temperature in order to have the same internal energy, the final temperature should be the same as that of initial temperature.

Question 30 of 65
30. Question
1 pointsCorrect
Incorrect

Question 31 of 65
31. Question
1 pointsCorrect
Incorrect

Question 32 of 65
32. Question
1 pointsCorrect
Incorrect

Question 33 of 65
33. Question
1 pointsA system of fluid having mass ‘m’ and specific heat ‘C’ is separated from another system of fluid having mass 2m and specific heat 2C, by a partition in an adiabatic enclosure. What will be the value (K) of final temperature while the partition is removed, and if t1 = 20 °C and t2 = 30 °C?
Correct
Incorrect

Question 34 of 65
34. Question
1 pointsWhat is the range of final temperatures of two bodies which are at 200°C and 300°C respectively, when they are brought together into thermal contact?
Correct
Incorrect

Question 35 of 65
35. Question
1 pointsThe ratio of times of separation, in a decanter for two liquid systems having same continuous phase, if the lighter liquid density is 2/ 3 of heavier liquid density in first system whereas in the second system it is 1/ 3 of heavier liquid density is
Correct
Incorrect

Question 36 of 65
36. Question
1 pointsConsider a Bingham fluid of viscosity μ =10Pa.S, which sheared between the two parallel plates separated by 10³m. Assume the top plate is moving with the velocity of 1 m/s and shear stress on the plate is 80μPa… What will be the value of yield stress (kPa)?
Correct
Incorrect

Question 37 of 65
37. Question
1 pointsThe ratio of yield from a chemical pulping process, to the yield from mechanical pulping process is
Correct
In the chemical pulping process, we can produce pulp, which is suitable for the production of paper, but the yield is only half of that will be obtained from mechanical pulping process
Incorrect
In the chemical pulping process, we can produce pulp, which is suitable for the production of paper, but the yield is only half of that will be obtained from mechanical pulping process

Question 38 of 65
38. Question
1 pointsWhat are the starting materials for the product that will be used in the manufacture of automobile tyres?
Correct
The main useful product that will be used for the preparation of automobile types is SBR (styrene butadiene Rubber)
Incorrect
The main useful product that will be used for the preparation of automobile types is SBR (styrene butadiene Rubber)

Question 39 of 65
39. Question
1 pointsThe collection efficiency of a cyclone increases with the
Correct
The collection efficiency of cyclone increases with the particle density
Incorrect
The collection efficiency of cyclone increases with the particle density

Question 40 of 65
40. Question
1 pointsCatalytic Reforming produces higheroctane petroleum products due to
Correct
Both processors occur during catalytic reforming, for example, hydrocracking of paraffin produces iso products dehydrocyclization produces aromatics from paraffin’s and isomerization of normal paraffin produces isoparaffins etc.
Incorrect
Both processors occur during catalytic reforming, for example, hydrocracking of paraffin produces iso products dehydrocyclization produces aromatics from paraffin’s and isomerization of normal paraffin produces isoparaffins etc.

Question 41 of 65
41. Question
1 pointsWhat is the difference between thermoplastic polymers to thermosetting polymers?
Correct
Thermosetting polymers are formed by condensation polymerization with these decimals structure where thermoplastics polymer are formed by addition polymerization will have the linear structure
Incorrect
Thermosetting polymers are formed by condensation polymerization with these decimals structure where thermoplastics polymer are formed by addition polymerization will have the linear structure

Question 42 of 65
42. Question
1 pointsCorrect
Incorrect

Question 43 of 65
43. Question
1 pointsIf the two regression lines are 8x −10y + 66 = 0 and 40x −18y = 214 then mean of x and y are respectively
Correct
Incorrect

Question 44 of 65
44. Question
1 pointsFind the 1st approximation to a real root of the equation x³ − 2x − 5 = 0 by Regula falsi method between 2 and 3.
Correct
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 pointsThe concentration of the limiting reactant (with the initial concentration of a moles/lt) after time ‘t’ is (ax). Then‘t’ for a first order reaction is given by
Correct
kt = ln (a /a − x)
Incorrect
kt = ln (a /a − x)

Question 49 of 65
49. Question
1 pointsIn a first order reaction, the time required to reduce the concentration of reactant from 1 mole/lt to 0.5 mole/lt will be _____that required to reduce it from 10moles/lt to 5 moles/lt in the same volume.
Correct
Same as
Incorrect
Same as

Question 50 of 65
50. Question
1 pointsCorrect
Incorrect

Question 51 of 65
51. Question
1 pointsCorrect
Incorrect

Question 52 of 65
52. Question
1 pointsLet P be the matrix with (1,1,1,3), (1, 2, 3, 4), (2,3,4,9)
As the rows. Consider the two statements.
(I) All the three rows are linearly independent
(II) Rank of P is 3Correct
Incorrect

Question 53 of 65
53. Question
1 pointsCorrect
Incorrect

Question 54 of 65
54. Question
1 pointsCorrect
Incorrect

Question 55 of 65
55. Question
1 pointsWhat will be the range in meters for the length of straight rectangular wire in crossflow trays, if the diameter meter of a column is 2m?
Correct
For crossflow trays, the range will be 0.6D 0.8D where D is the column diameter. Therefore, the present case is 0.6x 2 = 1.2 ; 0.8x 2 =1.6
Incorrect
For crossflow trays, the range will be 0.6D 0.8D where D is the column diameter. Therefore, the present case is 0.6x 2 = 1.2 ; 0.8x 2 =1.6

Question 56 of 65
56. Question
1 pointsCorrect
Incorrect

Question 57 of 65
57. Question
1 pointsThe mechanical efficiency of the pump is 0.60. The power input is 3 hp and mass flow rate through the pump is 3 kg/sec. Calculate pump work in J/Kg, where 1 hp = 746 W.
Correct
Incorrect

Question 58 of 65
58. Question
1 pointsEngine lubricating oil is cooled from 150ºC to 80ºC by using water in parallel heat flow exchanger. The water temperature passing through heat exchanger increases from 25ºC to 60ºC, then effectiveness and NTU are
Correct
Incorrect

Question 59 of 65
59. Question
1 pointsCorrect
Incorrect

Question 60 of 65
60. Question
1 pointsCorrect
I – d, II –d
Incorrect
I – d, II –d

Question 61 of 65
61. Question
1 pointsA firstorder irreversible reaction, A → B carried out separately in a constant volume as well in a variable volume reactor for a particular period. It signifies__________.
I. (a) Both conversion as well as the concentration is same
(b) Conversion in both will be the same but concentrations will be different
(c) Both the conversion as well as concentrations will be different
(d) None of theseII. Which of the following fixes the volume of a batch reactor for a particular conversion and
production rate?
(a) Operating conditions (e.g. pressure and temperatures)
(b) Rate constant (c) Density of mixture (d) none of theseCorrect
Ib,IIc
Incorrect
Ib,IIc

Question 62 of 65
62. Question
1 pointsThe phase margin of a system can be found from the Nicholas chart by examining
Correct
The intersection of the open loop plot with the 0 dB magnitude axis
Incorrect
The intersection of the open loop plot with the 0 dB magnitude axis

Question 63 of 65
63. Question
1 pointsCorrect
Incorrect

Question 64 of 65
64. Question
1 pointsWhat is the exit conversion in percentage of reactant for a zero order reaction taking place in
a CSTR with the following data?
Rate constant =1 mol/min Litre
Feed concentration =1 mol/Litre
Feed flowrate= 0.5 L/min
& the reactor volume =1 LitreCorrect
Incorrect

Question 65 of 65
65. Question
1 pointsA cylindrical vertical container 50 cm ID is rotated about its axis the container has a height of 1m and was initially filled to 60 cm. Calculate the speed of rotation at which the water shall begin to spill over the container, and the pressure at a point 20 cm radial position and 5 cm above the base
Correct
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 
powered by calculator.net 