GATE Chemical Engineering (CH) Online Mock Test

GATE Chemical Engineering (CH) Online Mock Test Online Free. This mock test having 25 questions in each subjects, with four choices. On each click on answers system will tell you where the answers is correct or incorrect. You can view this GATE CH test question details at the end of the quiz.

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GATE 2016 :Chemical Engineering questions answers are applicable for any kind of CH Entrance preparation or PSU Competitive Exam in India. You can practice as much as you can to gather knowledge of how to answers GATE CH Exam 2016 critical type papers in short time and this can be a big factor for cracking all India engineering entrance level exam.



GATE Chemical Engineering Question Answers

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Question 1
The system has     
A
a uniqne solution
B
no solution
C
an infinite number of solutions
D
only the trivial solution
Question 2
A box containing 10 identical compartments has 6 red balls and 2 blue balls. Ti each compartment can hold only one ball, then the number of different possible arrangements are     
A
1026
B
1062
C
1260
D
1620
Question 3
If the temperature of saturated water is increased infinitesimally at constant entropy. the resulting state of water will be     
A
Liquid
B
Liquid — vapor coexistence
C
Saturated vapor
D
Solid
Question 4
For an exothermic reversible reaction. which one of the following correctly describes the dependence of the equilibrium constant (K) with temperature (T) and pressure (P)?    
A
K is independent of T and P
B
K increases with an increase in T and P
C
K increases with T and decreases with P
D
K decreases with an increase in T and is independent of P
Question 5
Water is flowing tinder laminar conditions in a pipe of length L. If the diameter of the pipe is doubled, for a constant volumetric flow rate, the pressure drop across the pipe      
A
decreases 2 times
B
decreases 16 times
C
increases 2 tunes
D
increases 16 times
Question 6
The local velocity of a fluid along a streamline can be measured by       
A
Pitot tube
B
Venturi meter
C
Rotameter
D
Orifice meter
Question 7
In a mixing tank operating at very high Reynolds number (> 1 O), if the diameter of the impeller is doubled (other conditions remaining constant), the power required increases by a factor of      
A
1/32
B
1/4
C
4
D
32
Question 8
For heat transfer across a solid-fluid interface. which one of the following statements is NOT true when the Biot number is very small compared to 1?    
A
Conduction resistance in the solid is very small compared to convection resistance in the fluid
B
Temperature profile withimi the solid is nearly uniform
C
Temperature drop in the fluid is significant
D
Temperature drop in the solid is significant
Question 9
In the McCabe-Thiele diagram, if the x -coordinate of the point of intersection of the q -line and the vapor-liquid equilibrium curve is greater than the x -coordinate of the feed point, then the quality of the feed is     
A
super-heated vapor
B
liquid below bubble point
C
saturated vapor
D
saturated liquid
Question 10
For which of the following combinations, does the absorption operation become gas-film controlled? P. The solubility of gas in the liquid is veiy high Q. The solubility of gas in the liquid is vely low R. The liquid-side mass transfer coefficient is much higher than the gas-side mass transfer coefficient S. The liquid-side mass transfer coefficient is much lower than tile gas-side mass transfer coefficient    
A
P&Q
B
P&R
C
P&S
D
Q&R
Question 11
The half-life of an nth order reaction in a batch reactor depends on    
A
only the rate constant
B
only the rate constant and the order of the reaction
C
only the rate constant and the initial reactant concentration
D
the rate constant. initial reactant concentration, and the order of the reaction
Question 12
In petroleum refining. catalytic reforming is used to convert     
A
Paraffins and naphthenes to aromatics
B
Paraffins to hydrogen and carbon monoxide
C
Gas oil to diesel and gasoline
D
Light olefins to gasoline
Question 13
The final boiling points of gasoline, diesel, atmospheric gas oil (AGO) and lubricating oils vary as    
A
gasoline > diesel > AGO> lubricating oils
B
lubricating oils > AGO > diesel> gasoline
C
AGO > lubricating oils> diesel> gasoline
D
lubricating oils> diesel > AGO> gasoline
Question 14
The main unit processes used for the production of hydrogen from natural gas are steam reforming (SR), pressure swing adsorption (PSA), low temperature water gas shift reaction (LT WOS) and high temperature water gas shift reaction (HT WGS). The correct sequence of these in the plant is    
A
SR: LT WGS: HT WGS: PSA
B
PSA: SR: LT WGS: HT WOS
C
SR; HT WGS: LT WGS: PSA
D
PSA: HT WGS: LT WGS; SR
Question 15
A thermometer initially at 100⁰C is dipped at t = 0 into an oil bath, maintained at 150⁰C.  If  the recorded temperature is 1 30⁰C after 1 minute, then the time constant of thermometer (in mm) is     
A
1.98
B
1.35
C
1.26
D
1.09
Question 16
The Bode stability criterion is applicable when    
A
Gain and phase curves decrease continuously with frequency
B
Gain curve increases and phase curve decreases with frequency
C
Gain curve and phase curve both increase with frequency
D
Gain curve decreases and phase curve increases with freqiency
Question 17
Heat is generated at a steady rate of 100 W due to resistance heating in a long wire (length = 5 in. diameter = 2 mm). This wire is wrapped with an insulation of thickness 1 mm that has a thennal conductivity of 0.1 W/m.K. The insulated wire is exposed to air at 30°C. The convective heat transfer between the wire and surrounding air is characterized by a heat transfer coefficient of 10 W/rn2.K. The temperature (in °C) at the interface between the wire and the insulation is     
A
211.2
B
242.1
C
311.2
D
484.2
Question 18
In a counter-flow double pipe heat exchanger, oil (iii = 2 kg/s. C,= 2.1 k3fkg.°C) is cooled from 90 °C to 40 °C by water (iii = 1 kg/s. C, = 4.2 kJ/kg.°C) which enters the inner tube at 10 °C. The radius of the inner tube is 3 cm and its length is 5 in. Neglecting the wall resistance. the overall heat transfer coefficient based on the inner radius, in kW/ m2.K, is     
A
0.743
B
7.43
C
74.3
D
2475
Question 19
An equimolar mixture of A and B (A being more volatile) is flash distilled continuously at a feed rate of 100 kmol/h, such that the liquid product contains 40 mol % of A. If the relative volatility is 6, then the vapor product, in kmol/h, is     
A
10
B
20
C
25
D
45
Question 20
A thermocouple having a linear relationship between 0 °C and 350 °C shows an emf of zero and 30.5 mV, respectively at these two temperatures. If the cold junction temperature is shifted from 0 °C to 30 °C, then the emf correction (in my) is     
A
3.13
B
2.92
C
2.61
D
2.02
Question 21
The characteristic equation for a system is s3 +9s2 +26s+12(2+Kc) = 0. Using the Routli test. the value of Kc that will keep the system on the verge of instability is    
A
20.9
B
18.4
C
17.5
D
15.3
Question 22
Heat integration is planned in a process plant at an investment Rs. 2 x 106. This would result in a net energy savings of 20 GJ per year. If the nomial rate of interest is 15% and the plant life is 3 years, then the breakeven cost of energy, in Rs. per GJ (adjusted to the nearest hundred), is      
A
33500
B
43800
C
54200
D
65400
Question 23
In a 1-1 pass floating head type shell and tube heat exchanger. the tubes (od = 25 turn: id = 21 mm) are arranged in a square pitch. The tube pitch is 32 nun. The thermal conductivity of the shell side fluid is 0. 19 W/ni.K. and the Nusselt niunber is 200. The shell-side heat transfer coefficient (in W/ni2,K). rounded off to the nearest integer, is     
A
1100
B
1400
C
1800
D
2100
Question 24
If the flow rate of B is 2400 kg/h, then the theoretical number of stages in the column. using Kreiiiser s equation (adjusted to the next integer) is     
A
5
B
9
C
11
D
13
Question 25
If the exit concentration of A is 0.5 mole /liter, then the rate constant, in minˉ1 is     
A
0.06
B
0.28
C
0.42
D
0.64
Question 26
Which one of the following options is the closest in meaning to the word given below? Mitigate          
A
Diminish
B
Divulge
C
Dedicate
D
Denote
Question 27
Choose the most appropriate alternative from the options given below to complete the following sentence: Suresh’s dog is the one ________ was hurt in the stampede.     
A
that
B
which
C
who
D
whom
E
All of thses
Question 28
A political party orders an arch for the entrance to the ground in which the annual convention is being held. The profile of tile arch follows tile equation y = 2x — 0. 1x2 where y is the height of the arch in meters. The maximum possible height of tile arch is     
A
8 meters
B
10 meters
C
12 meters
D
14 meters
Question 29
‘%anted Temporary, Part-time persons for the post of Field Interviewer to conduct personal interviews to collect and collate economic data. Requirements: High School-pass. must be available for Day. Evening an(l Saturday work. Transportation paid. expenses telmnbursed. Which one of the following is the best inference from the above advertisement      
A
Gender-discriminatory
B
Xenophobic
C
Not designed to make time post attractive
D
Not gender-discriminatory
Question 30
Given the sequence of terms, AD CG FK JP, the next term is      
A
OV
B
OW
C
PV
D
PW
Question 31
Which of the following assertions are CORRECT? P: Adding 7 to each entry in a list adds 7 to the ineaii of the list Q: Adding 7 to each ently in a list adds ‘ to the standard deviation of the list R: Doubling each entry in a list doubles the iiiean of the list S: Doubling each entry in a list leaves the standard deviation of the list unchanged    
A
P, Q
B
Q, R
C
P, R
D
R, S
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