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Objective Questions

Latest MFL Technical Assistant Trainee Operations Exam Question (Objective Questions), MCQ in English

Subjects : Aptitude & Reasoning, Subject Knowledge (Chemical Engineering)

Question Bank MFL Technical Assistant Trainee (Operations) Exam - English
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Aptitude & Reasoning

Question 1Single Answer
How many such pairs of letters are there in the word ‘CLEANLINESS’ each of the which has as many letters between them in the word as they have in the English alphabet, in the same sequence?
  1. A
    Two
  2. B
    Three
  3. C
    Five
  4. D
    Four
  5. E
    None of these
Question 2Single Answer
Team A has scored more goals than Team B
Team C has scored fewer goals than Team B
Team A has scored fewer goals than Team C .
If the first two statements are true, the third statement is
  1. A
    True
  2. B
    False
  3. C
    Uncertain
  4. D
    None
Question 3Single Answer
If it is possible to make only one meaningful word with the second, the third, the sixth and the eight letters of the word FRAGMENT using each only once, which of the following will be the third letter of that word ? If no such word can be formed, give ‘X’ as the answer and if more than one such word can be formed, give ‘Y’ as the answer.
  1. A
    A
  2. B
    E
  3. C
    T
  4. D
    X
  5. E
    Y
Question 4Single Answer
How many such letters are there in the word ORIENTAL each of which is as far away from the beginning of the word as when they are arranged alphabetically?
  1. A
    None            
  2. B
    One         
  3. C
    Two       
  4. D
    Three        
  5. E
    More than three
Question 5Single Answer
How many such pairs of letters in the word CREDIT each of which has as many letters between them in the word as in the English alphabet?
  1. A
    None
  2. B
    One
  3. C
    Two
  4. D
    Three
  5. E
    More than three
Question 6Single Answer
How many meaningful words can be made from the letters ‘LMEA’ using each letter only once in each word?
  1. A
    None
  2. B
    One
  3. C
    Two
  4. D
    Three
  5. E
    More than three
Question 7Single Answer
If it is possible to make only one meaningful word with the first, the second, the seventh and the eighth letters of the word TEMPORAL, which of the following will be the first letter of that word? If more than one such word can be made, give ‘Y’ as the answer and if no such word can be made, give ‘X’ as the answer.
  1. A
    T
  2. B
    L
  3. C
    E
  4. D
    Y
  5. E
    X
Question 8Single Answer
If the letters of the word HANDOVER are arranged alphabetically from left to right how many letters will remain at the same position?
  1. A
    None
  2. B
    One
  3. C
    Two
  4. D
    Three
  5. E
    More than three
Question 9Single Answer
How many such pairs of letters are there in the word EXCURSION, each of which has as many letters between them in the word as they have in the English alphabet?
  1. A
    None
  2. B
    One
  3. C
    Two
  4. D
    Three
  5. E
    More than three
Question 10Single Answer
If it is possible to make only one meaningful word with the first, the second, the third, the sixth and the eighth letters of the word DEVIATION first letter of that word is your answer? If more than one such word can be made formed your answer is ‘A’  and if no such word can be formed your answer is ‘B’.
  1. A
    V
  2. B
    T
  3. C
    E
  4. D
    A
  5. E
    B
Question 11Single Answer
Passage :
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z .
Which letter in this alphabet is the eighth letter to the right of the letter and which is tenth letter to the left of the last but one letter of the alphabet ?
  1. A
    X
  2. B
    W
  3. C
    I
  4. D
    H
Question 12Single Answer
Passage :
Direction : The following question is based on the five words given below:
AND FOR THE BIG SUM (The new words formed after performing the mentioned operations may or may not necessarily the meaningful English words.)
If the third alphabet of each of the words is changed to the next alphabet in the English alphabetical series, which of the following will form a meaningful English word?
  1. A
    SUM
  2. B
    BIG
  3. C
    Both BIG and THE
  4. D
    FOR
  5. E
    Both FOR and BIG
Question 13Single Answer
Passage :
Direction : The following question is based on the five words given below:
AND FOR THE BIG SUM (The new words formed after performing the mentioned operations may or may not necessarily the meaningful English words.)
If the given words are arranged in the order as they would appear in a dictionary from left to right, which of the following will be second from the right ?
  1. A
    AND
  2. B
    FOR
  3. C
    THE
  4. D
    BIG
  5. E
    SUM
Question 14Single Answer
Passage :
Direction: The following question is based on the five words given below:
AND FOR THE BIG SUM (The new words formed after performing the mentioned operations may or may not necessarily the meaningful English words.)
If second alphabet in each of the words is changed to next alphabet in the English alphabetical order, how many words having two vowels (same or different vowels) will be formed ?
  1. A
    None
  2. B
    One
  3. C
    Two
  4. D
    Three
  5. E
    Four
Question 15Single Answer
Passage :
Direction : The following question is based on the five words given below:
AND FOR THE BIG SUM (The new words formed after performing the mentioned operations may or may not necessarily the meaningful English words.)
How many letters are there in the English alphabetical series between the second letter of the word which is second from the right and the second letter of the word which is second from the left of the given words?
  1. A
    Two
  2. B
    Five
  3. C
    Six
  4. D
    Nine
  5. E
    Three
Question 16Single Answer
The cash difference between the selling prices of an article at a profit of 4% and 6% is Rs. 3. The ratio of the two selling prices is:__________ ?
  1. A
    51:52
  2. B
    52:53
  3. C
    51:53
  4. D
    52:55
Question 17Single Answer
Which of the following numbers is irrational ?
  1. A
    √49
  2. B
    0.125
  3. C
    √2
  4. D
    22/7
Question 18Single Answer
356 x 936 – 356 x 836 = ?
  1. A
    35600  
  2. B
    34500
  3. C
    9630
  4. D
    93600
Question 19Single Answer
Arrange in descending order: 5/8, 7/10, 3/4
  1. A
    3/4 > 7/10 > 5/8
  2. B
    7/10 > 3/4 > 5/8
  3. C
    3/4 > 5/8 > 7/10
  4. D
    5/8 > 7/10 > 3/4
Question 20Single Answer
What is (3^{4} times 9^{2}) ?
  1. A
    36
  2. B
    38
  3. C
    310
  4. D
    96
     
Question 21Single Answer
If 34X-2 = 729, then find the value of X.
  1. A
    4     
  2. B
    3
  3. C
    2 
  4. D
    5
Question 22Single Answer
Convert 0.6 into fraction ?
  1. A
    3/5
  2. B
    2/3
  3. C
    4/5
Question 23Single Answer
The no. plate of a bus had peculiarity. The bus number was a perfect square. It was also a perfect square when the plate numbers were reversed. The bus company had only five hundred buses numbered from 1 to 500. What was the number ?
  1. A
    169  
  2. B
    36
  3. C
    196 
  4. D
    Can not say
Question 24Single Answer
If a and b are positive integers, such that ab = 125, then (a-b)a+b-4 = ?
  1. A
    16   
  2. B
    25
  3. C
    28  
  4. D
    30
Question 25Single Answer
If x*y = x2 + y2 – xy, then value of 9*11 is
  1. A
    93     
  2. B
    103
  3. C
    60.5
  4. D
    121
Question 26Single Answer
Passage :
information given below and answer the question that follow.
The result of an exam is given below. Out of 1000 students who appeared
(i) 658 failed in Physics
(ii) 166 failed in Physics and Chemistry
(iii) 372 failed in Chemistry, 434 failed in Physics and Maths
(iv) 590 failed in Maths, 126 failed in Maths & Chemistry
Find the number of people who failed in (assuming that none is passed in all subjects.

We have the following equations:
a+ b + c + d + e + f + g = 1000
a + b + d + e = 658, b + d = 166
b + d + c + f = 372
d + e = 434 as in the figure.
d + e + f + g = 590, d + f = 126. Find the values
Chemistry but not in Physics.
  1. A
    318
  2. B
    198
  3. C
    213 
  4. D
    206
Question 27Single Answer
Passage :
Direction: information given below and answer the question that follow.
The result of an exam is given below. Out of 1000 students who appeared
(i) 658 failed in Physics
(ii) 166 failed in Physics and Chemistry
(iii) 372 failed in Chemistry, 434 failed in Physics and Maths
(iv) 590 failed in Maths, 126 failed in Maths & Chemistry
Find the number of people who failed in (assuming that none is passed in all subjects.

We have the following equations:
a+ b + c + d + e + f + g = 1000
a + b + d + e = 658, b + d = 166
b + d + c + f = 372
d + e = 434 as in the figure.
d + e + f + g = 590, d + f = 126. Find the values
Physics or Maths but not in Chemistry.
  1. A
    558   
  2. B
    718
  3. C
    628  
  4. D
    None of these
Question 28Single Answer
Passage :
For the next four question that follow:
In a city, three daily newspapers A, B, C are published, 42% read A; 51% read B; 68% read C; 30% read A and B; 28% read B and C; 36% read A and C; 8% do not read any of the three newspapers.

Let x% people read all the three newspapers.
Since 8% people do not read any newspapers.
 (x – 24) + (x – 7) + (x + 4) + (30 – x) + (36 – x) + (28 – x) + x = 92
→ x + 98 – 31 = 92
→ x = 92 – 67 = 25
What is the percentage of persons who read all the three papers ?
  1. A
    20%  
  2. B
    25%
  3. C
    30%  
  4. D
    40%
Question 29Single Answer
Passage :
For the next four : question that follow :
In a city, three daily newspapers A, B, C are published, 42% read A; 51% read B; 68% read C; 30% read A and B; 28% read B and C; 36% read A and C; 8% do not read any of the three newspapers.

Let x% people read all the three newspapers.
Since 8% people do not read any newspapers.
 (x – 24) + (x – 7) + (x + 4) + (30 – x) + (36 – x) + (28 – x) + x = 92
→ x + 98 – 31 = 92
→ x = 92 – 67 = 25
What is the percentage of persons who read only two papers?
  1. A
    19%  
  2. B
    31%
  3. C
    44%
  4. D
    None of these
Question 30Single Answer
Passage :
For the next four : question that follow :
In a city, three daily newspapers A, B, C are published, 42% read A; 51% read B; 68% read C; 30% read A and B; 28% read B and C; 36% read A and C; 8% do not read any of the three newspapers.

Let x% people read all the three newspapers.
Since 8% people do not read any newspapers.
(x – 24) + (x – 7) + (x + 4) + (30 – x) + (36 – x) + (28 – x) + x = 92
→ x + 98 – 31 = 92
→ x = 92 – 67 = 25
What is the percentage of persons who read only one paper ?
  1. A
    38% 
  2. B
    48%
  3. C
    51%  
  4. D
    None of these

Subject Knowledge (Chemical Engineering)

Question 31Single Answer
The equilibrium constant (K) for a reaction is related to the Gibbs free energy change (ΔG) by:
  1. A
    ΔG = -RT ln(K)
  2. B
    ΔG = RT ln(K)
  3. C
    ΔG = -RT/ln(K)
  4. D
    ΔG = RT/ln(K)
Question 32Single Answer
The first law of thermodynamics states that:
  1. A
    Entropy of an isolated system always increases
  2. B
    Energy can neither be created nor destroyed
  3. C
    Enthalpy remains constant in an adiabatic process
  4. D
    Heat transfer is irreversible
Question 33Single Answer
Which thermodynamic property is a measure of the disorder of a system?
  1. A
    Enthalpy
  2. B
    Gibbs free energy
  3. C
    Entropy
  4. D
    Internal energy
Question 34Single Answer
The Gibbs phase rule is used to determine:
  1. A
    The rate of a chemical reaction
  2. B
    The number of degrees of freedom in a system
  3. C
    The heat transfer coefficient
  4. D
    The mass transfer rate
Question 35Single Answer
What is the term for a system in which there is no transfer of heat with the surroundings?
  1. A
    Isothermal
  2. B
    Isobaric
  3. C
    Adiabatic
  4. D
    Isochoric
Question 36Single Answer
The Clapeyron equation is used to calculate:
  1. A
    Vapor pressure as a function of temperature
  2. B
    Heat capacity
  3. C
    Reaction rate
  4. D
    Mass transfer coefficient
Question 37Single Answer
Fugacity is a measure of:
  1. A
    The ideal gas pressure
  2. B
    The "escaping tendency" of a substance from a phase
  3. C
    The reaction rate
  4. D
    The heat transfer rate
Question 38Single Answer
The rate of a homogeneous reaction is usually expressed as a function of:
  1. A
    Temperature and pressure only
  2. B
    Temperature and concentration
  3. C
    Pressure and flow rate
  4. D
    Flow rate and volume
Question 39Single Answer
A batch reactor is characterized by:
  1. A
    Continuous flow of reactants and products
  2. B
    No flow of reactants or products during the reaction
  3. C
    Constant volume and temperature
  4. D
    Constant pressure and temperature
Question 40Single Answer
A continuous stirred-tank reactor (CSTR) is assumed to be:
  1. A
    Plug flow
  2. B
    Perfectly mixed
  3. C
    Laminar flow
  4. D
    Turbulent flow
Question 41Single Answer
The space time in a plug flow reactor (PFR) is equal to:
  1. A
    The residence time
  2. B
    The reaction rate
  3. C
    The heat transfer rate
  4. D
    The mass transfer rate
Question 42Single Answer
Catalysts increase the rate of a reaction by:
  1. A
    Increasing the temperature
  2. B
    Lowering the activation energy
  3. C
    Increasing the pressure
  4. D
    Changing the equilibrium constant
Question 43Single Answer
What type of reactor is used for heterogeneous catalytic reactions where a solid catalyst is fluidized by the reacting fluid?
  1. A
    Batch reactor
  2. B
    CSTR
  3. C
    Fluidized bed reactor
  4. D
    Packed bed reactor
Question 44Single Answer
The Arrhenius equation describes the temperature dependence of:
  1. A
    Reaction rate constant
  2. B
    Heat transfer coefficient
  3. C
    Mass transfer coefficient
  4. D
    Equilibrium constant
Question 45Single Answer
Distillation is used to separate components based on differences in:
  1. A
    Density
  2. B
    Boiling points
  3. C
    Viscosity
  4. D
    Particle size
Question 46Single Answer
Absorption is a mass transfer operation in which a gas is dissolved in a:
  1. A
    Solid
  2. B
    Liquid
  3. C
    Another gas
  4. D
    Vacuum
Question 47Single Answer
Extraction is a separation process based on differences in:
  1. A
    Solubility
  2. B
    Density
  3. C
    Boiling point
  4. D
    Viscosity
Question 48Single Answer
Drying involves the removal of:
  1. A
    Solutes from a solution
  2. B
    Moisture from a solid
  3. C
    Gases from a mixture
  4. D
    Heat from a system
Question 49Single Answer
Reverse osmosis is an example of a:
  1. A
    Distillation process
  2. B
    Absorption process
  3. C
    Membrane separation process
  4. D
    Drying process
Question 50Single Answer
The Fick's law describes:
  1. A
    Heat conduction
  2. B
    Mass diffusion
  3. C
    Fluid flow
  4. D
    Chemical reaction rates
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