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.

3851.

Star connection can also be called as Y (or) T connection.

A. True
B. False
Answer» B. False
3852.

Commutation process of a DC motor can be accomplished by solid devices (transistors and SCR’s).$

A. True
B. False
Answer» B. False
3853.

The scale-up process is preferred to which condition?

A. The migration of a process from the lab-scale to the pilot plant-scale
B. The migration of a process from the bench-scale to the lab-scale
C. The migration of a process from the small-scale to the lab-scale
D. The migration of a process from the bench-scale to the small-scale
Answer» B. The migration of a process from the bench-scale to the lab-scale
3854.

The time complexity of binary search is given by:

A. constant
B. quardratic
C. exponential
D. none of the mentioned
Answer» E.
3855.

The UNION SQL clause can be used with

A. SELECT clause only
B. DELETE and UPDATE clauses
C. UPDATE clause only
D. All oF the mentioned
Answer» B. DELETE and UPDATE clauses
3856.

Under the open-circuited conditions the net hole current must be zero. Is this statement is True or false?

A. True
B. False
Answer» B. False
3857.

A number with both integer and a fractional part has digits raised to both positive and negative powers of 2 in a decimal number system.

A. True
B. False
Answer» C.
3858.

Rise in temperature___________soil suction.

A. Decreases
B. Increases
C. Removed
D. None of the mentioned
Answer» B. Increases
3859.

Which of the following is not the benefit of submerged cutting?

A. improved accuracy
B. better surface finish
C. Thermal stability
D. no wire breakage
Answer» E.
3860.

________ is the entity for issuing digital certificates.

A. Certificate Authority (CA)
B. Cert Authority (CA)
C. Cert Authorization (CA)
D. Certificate Authorization (CA)
Answer» B. Cert Authority (CA)
3861.

Antenna can also be used as a receiver.

A. True
B. False
Answer» B. False
3862.

The vertical or Front member of the step, which is connected to the treads, is known as a __________

A. Rise
B. Run
C. Riser
D. Pitch
Answer» D. Pitch
3863.

What is the magnitude of lost work not dependent upon?

A. Process irreversibilities
B. Fluid friction
C. Mass transfer due to finite concentration
D. Mass transfer due to finite temperature driving forces
Answer» E.
3864.

What is the melting point of titanium?

A. 885<sup>o</sup>C
B. 1680<sup>o</sup>C
C. 1989<sup>o</sup>C
D. 3287<sup>o</sup>C
Answer» C. 1989<sup>o</sup>C
3865.

Generate the CRC codeword for the message x3+1 using the generator polynomial x3+x+1.

A. 1001101
B. 1001001
C. 1001110
D. 1001111
Answer» D. 1001111
3866.

Shear strength of bolt is given by ____

A. f<sub>u</sub>(n<sub>n</sub>A<sub>nb</sub>+ n<sub>s</sub>A<sub>sb</sub>)/(‚àö3 x 1.1)
B. f<sub>y</sub>(n<sub>n</sub>A<sub>nb</sub>+ n<sub>s</sub>A<sub>sb</sub>)/(‚àö3 x 1.1)
C. f<sub>u</sub>(n<sub>n</sub>A<sub>nb</sub>+ n<sub>s</sub>A<sub>sb</sub>)/(‚àö3 x 1.25)
D. f<sub>y</sub>(n<sub>n</sub>A<sub>nb</sub>+ n<sub>s</sub>A<sub>sb</sub>)/(‚àö3 x 1.25)
Answer» D. f<sub>y</sub>(n<sub>n</sub>A<sub>nb</sub>+ n<sub>s</sub>A<sub>sb</sub>)/(‚Äö√Ñ√∂‚àö‚Ć‚àö‚àÇ3 x 1.25)
3867.

Which of the following atom, with its presence in the LDPE chain, can give a rubbery product?

A. Cl
B. S
C. N
D. O
Answer» B. S
3868.

In trapezoidal threads, f (coefficient of friction) can be taken as

A. f sec θ
B. f cos θ
C. f sin θ
D. f cosec θ
Answer» B. f cos ‚âà√≠‚Äö√†√®
3869.

Indirect extrusion needs a large amount of force for functioning.

A. True
B. False
Answer» C.
3870.

What is profile?

A. A profile is a standard distribution and allocation for the proper selection procedure
B. A profile is a set of one or more standards and where applicable, the identification of chosen classes and parameters of those standards
C. All of the mentioned
D. None of the mentioned
Answer» C. All of the mentioned
3871.

Which one of the following is not a fundamental activity for software processes in software engineering ?

A. Software Verification
B. Software Validation
C. Software design and implementation
D. Software evolution
Answer» B. Software Validation
3872.

The ignition timing is affected by

A. compression ratio
B. engine speed
C. mixture strength
D. all of the mentioned
Answer» E.
3873.

If a function is described by F = (3x + z, y2 ‚àí sin x2z, xz + yex5), then the divergence theorem value in the region 0

A. 13
B. 26
C. 39
D. 51
Answer» D. 51
3874.

Flow of nutrients is___________________________

A. Unidirectional
B. Rectangular
C. Cyclic
D. Triangular
Answer» D. Triangular
3875.

In hot rolling, the temperature of working is uniform.

A. True
B. False
Answer» C.
3876.

What is the equation of load current for a differential amplifier with an active load?

A. I<sub>L</sub> = g<sub>m</sub>√óv<sub>d</sub>
B. I<sub>L</sub> = I<sub>q</sub> /2
C. I<sub>L</sub> = β×I<sub>q</sub>×( V<sub>in1</sub> – V<sub>in2</sub>)
D. I<sub>L</sub> = 2×g<sub>m</sub>/( V<sub>in1</sub> – V<sub>in2</sub>)
Answer» B. I<sub>L</sub> = I<sub>q</sub> /2
3877.

Superconducting tin has a critical temperature of 3.7K at zero magnetic field and a critical field at 0.0306 Tesla at 0K. Find the critical field at 2K.

A. 0.0306 Tesla
B. 7.4 Tesla
C. 0.02166 Tesla
D. 0 Tesla
Answer» D. 0 Tesla
3878.

What is the main use of a Bacterial Artificial Chromosome (BAC) vectors?

A. E.coli protein expression
B. Human genomic library construction
C. E.coli genomic library construction
D. Stable transfection
Answer» C. E.coli genomic library construction
3879.

The transposed vapor rate vector, Vi is raised to power of

A. J<sub>k</sub>
B. I<sub>k</sub>
C. T
D. P
Answer» D. P
3880.

Which of the following is a sludging type electrolyte?

A. NaOH solution
B. KOH solution
C. NaCl solution
D. CuSO<sub>4</sub> solution
Answer» D. CuSO<sub>4</sub> solution
3881.

A gas weighs 16 N/m3 at 30‚ÑÉ and at an absolute pressure of 0.35 N/mm2. Determine the gas constant.$

A. 708.23
B. 354.11
C. 531.17
D. 1062.34
Answer» B. 354.11
3882.

The derivative of digital function is defined in terms of difference. Then, which of the following defines the second order derivative ∂2 f/∂x2 = ___________ of a one-dimensional function f(x)?$

A. f(x+1)-f(x)
B. f(x+1)+ f(x-1)-2f(x)
C. All of the mentioned depending upon the time when partial derivative will be dealt along two spatial axes
D. None of the mentioned
Answer» C. All of the mentioned depending upon the time when partial derivative will be dealt along two spatial axes
3883.

Which of the following is not followed by proxy pattern?

A. virtual proxies
B. remote proxies
C. access proxies
D. none of the mentioned
Answer» E.
3884.

_______ communication flows from a superior to a subordinate.

A. Upward
B. Downward
C. Diagonal
D. Lateral
Answer» C. Diagonal
3885.

Which of the option is correct about the preference of shaft and holes in machine tool industries?

A. ‘A11’ is of first preference in shafts
B. ‘B9’ is of first preference in holes
C. ‘c2’ is of first preference in shafts
D. ‘b11’ is of second preference in holes
Answer» D. ‚Äö√Ñ√∂‚àö√ë‚àö‚â§b11‚Äö√Ñ√∂‚àö√ë‚àö¬• is of second preference in holes
3886.

The mongo shell and the drivers provide several cursor methods that call on the cursor returned by the _______ method to modify its behavior.

A. cursor()
B. find()
C. findc()
D. none of the mentioned
Answer» C. findc()
3887.

Fatigue failure is time dependent failure.

A. True
B. False
Answer» B. False
3888.

Which of the statements is correct for non uniform separation obtained other than the conventional one?

A. It can be obtained via applying strong field towards the cathode
B. It can be obtained via applying same field on both the sides
C. The separation is greater on the side of stronger field
D. Its is greater towards the weaker field
Answer» D. Its is greater towards the weaker field
3889.

For using zip command, the first argument should be a compressed filename.

A. True
B. False
Answer» B. False
3890.

Which modulation scheme is used by Bluetooth?

A. DQPSK
B. MSK
C. GFSK
D. BPSK
Answer» D. BPSK
3891.

__________ furfural, and hemicellulose are obtained as by products in Organosolv pulping.

A. Lignin
B. Alcohol cellulose
C. Organocell
D. Methanol
Answer» B. Alcohol cellulose
3892.

In clay content determination of molding sand, which is the base solution used?

A. KOH
B. NaOH
C. Mg(OH)<sub>2</sub>
D. Ca(OH)<sub>2</sub>
Answer» C. Mg(OH)<sub>2</sub>
3893.

Choose the disadvantage of using SSM as an elicitation technique.

A. It incorporates human element into design
B. SSM is in its infant stage
C. SSM is suitable for new systems
D. Standard methodologies like Role Exploration, Issue Resolution and Reorganization support SSM
Answer» C. SSM is suitable for new systems
3894.

If water flows in radial direction at inlet of runner and leaves axially at outlet then turbine is named as

A. Tangential flow turbine
B. Axial flow turbine
C. Radial flow turbine
D. Mixed flow turbine
Answer» E.
3895.

Mark the possible causes of overheating of commutator in a DC machine.

A. Overload
B. Restricted ventilation
C. Shorted winding
D. Any of the mentioned
Answer» B. Restricted ventilation
3896.

By which process dissolved manganese compounds can be converted into insoluble manganese compounds?

A. Aeration
B. Coagulation
C. Sedimentation
D. Flocculation
Answer» B. Coagulation
3897.

The coordinate of the Force vector AB is A (2, 0, 2) and B (-2, 3.46, 3). What are its directions?

A. -0.742i + 0.643j + 0.186k
B. 0.742i – 0.643j – 0.186k
C. -0.742i – 0.643j + 0.186k
D. -0.742i + 0.643j – 0.186k
Answer» E.
3898.

What is the role of decarboxylase enzyme encoded by URA3 gene?

A. Nucleotide catalysis
B. Uracil formation
C. Leucine formation
D. Lactose breakdown
Answer» B. Uracil formation
3899.

The process of subdividing a congested cell into smaller cells is called _______

A. Cell splitting
B. Sectoring
C. Micro cell technique
D. Repeaters
Answer» B. Sectoring
3900.

How is hardness represented?

A. Hardness = 2 ( Ca<sup>2+</sup>) +2( Mg<sup>2+</sup>)
B. Hardness = Ca <sup>2+</sup> + 2 (Mg <sup>2+</sup>)
C. Hardness = 3(Ca <sup>2+</sup>) + Mg <sup>2+</sup>
D. Hardness = 3(Ca <sup>2+</sup>) +2( Mg<sup>2+</sup>)
Answer» B. Hardness = Ca <sup>2+</sup> + 2 (Mg <sup>2+</sup>)