Explore topic-wise MCQs in Chemical Engineering.

This section includes 5314 Mcqs, each offering curated multiple-choice questions to sharpen your Chemical Engineering knowledge and support exam preparation. Choose a topic below to get started.

4201.

Which of the following is not an inherent application of stack?

A. Reversing a string
B. Evaluation of postfix expression
C. Implementation of recursion
D. Job scheduling
Answer» E.
4202.

In Pulsed Electric field, since no heat is used, the aroma and flavour of food are retained.

A. True
B. False
Answer» B. False
4203.

Calcium complex grease can be made from_____

A. lime, fatty acid, acetic acid
B. calcium, lime, acetic acid
C. calcium, lime, acetic acid
D. lime, calcium, acetic acid
Answer» B. calcium, lime, acetic acid
4204.

Which of these were or are used in automobiles to provide suspension.

A. Leaf springs
B. Coil springs
C. Torsion bars
D. All of the mentioned
Answer» E.
4205.

The ability for a system of instructions to simulate a Turing Machine is called _________

A. Turing Completeness
B. Simulation
C. Turing Halting
D. None of the mentioned
Answer» B. Simulation
4206.

Oligonucleotides are synthesized chemically. Which of the following step is involved in oligonucleotide synthesis?

A. Nucleotide addition is done by adding many nucleotides at a time
B. The coupling reaction should involve water
C. Only one type of nucleotides can be added at a time
D. Unblocking of the reactive groups leads to addition of nucleotides
Answer» E.
4207.

What is the formula for the conductor dimensions in transformer?

A. conductor dimensions = conductor width * conductor thickness + 0.5 mm
B. conductor dimensions = conductor width / conductor thickness + 0.5 mm
C. conductor dimensions = conductor width + conductor thickness + 0.5 mm
Answer» B. conductor dimensions = conductor width / conductor thickness + 0.5 mm
4208.

CO2 lasers are folded to achieve _____________

A. high power
B. high depth of cuts
C. high material removal rate
D. avoid over heating
Answer» B. high depth of cuts
4209.

Cell material must be resistant to HF solution.

A. True
B. False
Answer» B. False
4210.

Notch filter belongs to _________________

A. Zero-order system
B. First-order system
C. Second-order system
D. Third-order system
Answer» E.
4211.

Learning methods can only be online?

A. yes
B. no
Answer» C.
4212.

A circuit has a resistance of 2 ohms connected in series with a capacitance of 6F. Calculate the discharging time constant.

A. 3
B. 1
C. 12
D. 8
Answer» D. 8
4213.

The junction at lower temperature in the thermocouple called measuring junction.

A. True
B. False
Answer» C.
4214.

What does the fail() method do in JUnit?

A. Throws an assertion error unconditionally
B. Calls the default constructor
C. Outputs the message “Fail” to the console
D. Pauses the test for 1 second
Answer» C. Outputs the message ‚Äö√Ñ√∂‚àö√ë‚àö‚à´Fail‚Äö√Ñ√∂‚àö√ë‚àöœÄ to the console
4215.

If two moving elements have surface contact in motion, such pair is known as

A. sliding pair
B. rolling pair
C. surface pair
D. lower pair
Answer» E.
4216.

In Three-Way Handshaking process, the situation where both the TCP’s issue an active open is ___________$

A. Mutual open
B. Mutual Close
C. Simultaneous open
D. Simultaneous close
Answer» D. Simultaneous close
4217.

The histone tails stabilizes the 30 nm fibre by interacting with adjacent nucleosomes __________

A. True
B. False
Answer» B. False
4218.

5’______ and 3’ ____ is the sequence for two ends of an intron.$

A. GA TC
B. GU AG
C. AG TA
D. GA AT
Answer» C. AG TA
4219.

y = 0100 and z = 0100

A. y = 0010 and z = 0100
B. y = 0100 and z = 1000
C. y = 0010 and z = 1000
Answer» D.
4220.

Which of the following encoding an XML parser assumes?

A. UTF-8
B. UTF-16
C. UTF-32
D. Both UTF-8 and UTF-32
Answer» C. UTF-32
4221.

Which part of the human brain has a center for controlling breathing?

A. Cerebrum
B. Cerebellum
C. Diencephalon
D. Medulla oblongata
Answer» E.
4222.

The positions of the line in a powder pattern are governed by the values of which of the following____

A. parabolic cell parameters
B. circular cell parameters
C. line position cell parameters
D. unit cell parameters
Answer» E.
4223.

What is the best way for reducing load on cyclone separators in the fluidized mixer for powdery material?

A. Using multiple cyclones
B. Increasing the gas flow rate
C. Increasing the solids mass rate
D. None of the mentioned
Answer» B. Increasing the gas flow rate
4224.

Which of the following modeling style follows the sequential processing of instructions?

A. Dataflow modeling
B. Behavior modeling
C. Structural modeling
D. Component modeling
Answer» C. Structural modeling
4225.

Which of the following points is/are true about Linked List data structure when it is compared with array

A. Arrays have better cache locality that can make them better in terms of performance
B. It is easy to insert and delete elements in Linked List
C. Random access is not allowed in a typical implementation of Linked Lists
D. All of the mentioned
Answer» E.
4226.

An electric cable of aluminum (k = 240 W/ m degree) is to be insulated with rubber (k = 6 W/ square meter degree). If the cable is in air (h = 6 W/square meter degree). Find the critical radius?

A. 80 mm
B. 160 mm
C. 40 mm
D. 25 mm
Answer» E.
4227.

Is instar a case of supervised learning?

A. yes
B. no
Answer» C.
4228.

Which of the following molecules is non-linear?

A. Hbr
B. CO<sub>2</sub>
C. C<sub>2</sub>H<sub>2</sub>
D. H<sub>2</sub>S
Answer» E.
4229.

Only lamellar structure lubricants provide lubrication.

A. True
B. False
Answer» C.
4230.

show()

A. print()
B. show() and print()
C. Compile time error
Answer» D.
4231.

Which of the following are propionic acid bacteria?

A. Streptococcus
B. Acetobacter
C. Clostridium
D. Veillonella
Answer» E.
4232.

IS 1489(Part 1):1991 is for _________

A. Code of practice for general construction of plain and reinforced concrete for dams and other massive structures
B. Specification for Portland pozzolana cement Part 1 Flyash based
C. Specification for Portland-pozzolana cement: Part 2 Calcined clay based
D. Methods of test for pozzolanic materials
Answer» C. Specification for Portland-pozzolana cement: Part 2 Calcined clay based
4233.

Speed control of Outward flow reaction turbine is _____________

A. Easy
B. Moderate
C. Difficult
D. Very difficult
Answer» E.
4234.

What is the total yield of ATP from complete oxidation of one molecule of glucose?

A. 32
B. 10
C. 8
D. 40
Answer» B. 10
4235.

Laser is classified under newer beam.

A. True
B. False
Answer» B. False
4236.

The field intensity of a charge defines the impact of the charge on a test charge placed at a distance. It is maximum at d = 0cm and minimises as d increases. State True/False

A. True
B. False
Answer» B. False
4237.

Which is the application of NFA

A. A regular language is produced by union of two regular languages
B. The concatenation of two regular languages is regular
C. The Kleene closure of a regular language is regular
D. All of the mentioned
Answer» E.
4238.

When capacitors are connected in series, which of the following rules are applied?

A. Voltage divider
B. Current divider
C. Both voltage divider and current divider
D. Neither voltage divider nor current divider
Answer» B. Current divider
4239.

Which of the following packaging material should be used in order to avoid off flavor formation in homogenized milk?

A. Transparent Glass bottles
B. Transparent bags
C. Opaque containers
D. Transparent containers
Answer» D. Transparent containers
4240.

The Factory patterns decouple clients from products by taking advantage of interfaces in two ways?

A. The generator class with the factory methods cannot be changed, disallowing variability in factory method implementations
B. Instances of a variety of classes that implement the product interface can be returned by a factory method, allowing great flexibility in results
C. All of the mentioned
D. None of the mentioned
Answer» C. All of the mentioned
4241.

Which of the following is not one of the operational limits and autopilot requirement for a category IIIc visibility condition?

A. Runway guidance required to taxi point
B. Fully automatic landing system with flare
C. Probability of catastrophic failure of less than 10‚àí7 per hour required
D. Decision height of 5m
Answer» E.
4242.

Which of the following mixture in aqueous solution of equimolar concentration acts as a buffer solution?

A. HNO<sub>3</sub> + NaOH
B. H<sub>2</sub> SO<sub>4</sub> + KOH
C. NH<sub>4</sub> OH(excess) + HCl
D. CH<sub>3</sub> COOH + NaOH(excess)
Answer» D. CH<sub>3</sub> COOH + NaOH(excess)
4243.

Which of these operators perform similar operations like ALL and ANY?

A. SOME
B. MANY
C. SELECT
D. GROUP
Answer» B. MANY
4244.

Which of the following command will be used to write the 4th line to file named file002?

A. : 1,40w file002
B. : 1,$w file002
C. : 4w file002
D. : 1,4w file002
Answer» D. : 1,4w file002
4245.

How many cells present per millilitre in a bacterial culture can make the culture turbid?

A. 1 cell
B. 1000 cells
C. 1 lakh cells
D. 107-108 cells
Answer» E.
4246.

How many tangents to a given circle, can we draw parallel to a given line?

A. 1
B. 2
C. 3
D. 4
Answer» C. 3
4247.

What is a theoretical shear strength of perfect crystal?

A. G
B. G/2π
C. G/4π
D. G/8π
Answer» C. G/4‚âà√¨‚àö√ë
4248.

In IC engines intercooler is used to __________

A. overall efficiency
B. increase volumetric efficiency
C. heat rate
D. none of the mentioned
Answer» C. heat rate
4249.

Identify the test which is not a part of qualitative analysis:

A. Litmus test
B. Kastle-Meyer test
C. Iodine test
D. Flame test
Answer» B. Kastle-Meyer test
4250.

What is the breadth size range of a clay particle?

A. 0.01-1 micrometres
B. 0.02-2 micrometres
C. 0.03-3 micrometres
D. 0.04-4 micrometres
Answer» B. 0.02-2 micrometres