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.

3551.

Water is used as an electron donor in anoxygenic photosynthesis?

A. True
B. False
Answer» C.
3552.

Property of LocaleChangeInterceptor used to customize parameter name?

A. localeResolver.setLocale
B. paramName
C. locale.parm
D. none of the mentioned
Answer» C. locale.parm
3553.

For instance, the designation 6 WS 13 denotes a window opening with single shutter having width equal to 6 modulus i.e. _____ and height equal to 13 modulus i.e. ____?

A. 600 mm, 13 mm
B. 6 mm, 13000 mm
C. 600 mm, 1300 mm
D. 6 mm, 13 mm
Answer» D. 6 mm, 13 mm
3554.

Which of the following is a privilege in SQL standard?

A. select
B. insert
C. update
D. All of the mentioned
Answer» E.
3555.

Which of the following analysis is usually modeled by deterministic set of equations ?

A. Predictive
B. Causal
C. Mechanistic
D. All of the mentioned
Answer» D. All of the mentioned
3556.

In FMEA, M stands for ____?

A. Modes
B. Measurement
C. Manufacture
D. Material
Answer» B. Measurement
3557.

What is the operation for mode 0?

A. 13-bit timer mode, 8-bit timer/counter THx and TLx as 5-bit prescalar
B. 16-bit timer mode, 16-bit timer/counter THx and TLx are cascaded, no prescalar
C. 8-bit auto reload mode, 8-bit auto reload time/counter; THx holds a value which is to be reloaded into TLx each time it overflows
D. Spilt timer mode
Answer» B. 16-bit timer mode, 16-bit timer/counter THx and TLx are cascaded, no prescalar
3558.

The number of majority carriers that are available for recombining with excess minority carriers decreases as the excess semiconductor becomes intrinsic. Is it true?

A. True
B. False
Answer» B. False
3559.

Which of the following is used for machine learning in python?

A. scikit-learn
B. seaborn-learn
C. stats-learn
D. none of the Mentioned
Answer» B. seaborn-learn
3560.

Employment of damper winding will reduce hunting?

A. True
B. False
Answer» B. False
3561.

The ________ water tends to develop dampness and inflorescence of the concrete structures?

A. Lake
B. Mineral
C. Sea
D. River
Answer» D. River
3562.

Why CaSO4 is not used in the crystallisation test?

A. Costly compound
B. Low solubility in water
C. Increases time taken for test
D. Releases toxic fumes
Answer» C. Increases time taken for test
3563.

Which of the following cycle does not have a gaseous state?

A. Oxygen
B. Nitrogen
C. Carbon
D. Phosphorous
Answer» E.
3564.

How are Nomographs used?

A. They give the direct reading
B. By joining the lines and extrapolating
C. By finding out points, joining the lines and extrapolating
D. Nomographs are ancient and thus not used
Answer» D. Nomographs are ancient and thus not used
3565.

Furnance cooling of iron carbon mixture will give which of the following compound?

A. Coarse perliite
B. Fine perlite
C. Bainite
D. Martensite
Answer» B. Fine perlite
3566.

For an average type of road surface what percentage of vehicle’s weight constitutes rolling resistanc?#

A. 5 to 10%
B. 1 to 2%
C. 2 to 5%
D. 0 to 3%
Answer» C. 2 to 5%
3567.

Which of the following equations give the expression for plate number, N when ‘tR’ is the adjusted retention time and ‘Wb’ is the width at the base of the peak which is equal to 4 standard deviations?#

A. 16 t<sub>R</sub><sup>2</sup>/W<sub>b</sub>
B. 4 t<sub>R</sub><sup>2</sup>/W<sub>b</sub>
C. (4t<sub>R</sub>/W<sub>b</sub>)<sup>2</sup>
D. 4 (t<sub>R</sub>/W<sub>b</sub>)<sup>2</sup>
Answer» D. 4 (t<sub>R</sub>/W<sub>b</sub>)<sup>2</sup>
3568.

The test execution engine does not carry any information about the ___________ product?

A. untested
B. tested
C. marketed
D. semi-tested
Answer» B. tested
3569.

The overall height of a logo position reflects how conserved the position is, and the _____ of each letter in a position reflects the _______ of the residue in the alignment?

A. height, relative frequency
B. width, relative frequency
C. height, amplitude
D. width, amplitude
Answer» B. width, relative frequency
3570.

Which of the following gate is known as coincidence detector?

A. AND gate
B. OR gate
C. NOR gate
D. NAND gate
Answer» B. OR gate
3571.

Spinning can be done by____?

A. centres
B. face plates or angle plates
C. special attachments
D. none of the mentioned
Answer» B. face plates or angle plates
3572.

Which of the following objects have momentum?

A. An electron is orbiting the nucleus of an atom.
B. A UPS truck is stopped in front of the school building.
C. The high school building rests in the middle of town.
D. None of the mentioned
Answer» B. A UPS truck is stopped in front of the school building.
3573.

The requirements for a good current source is the one in which, (Take Output current – IO and Output resistance – rO ?#

A. I<sub>O</sub> independent upon current gain and should be low
B. r<sub>O</sub> should be very high
C. I<sub>O</sub> in the circuit should be low
D. I<sub>O</sub> independent upon current gain and r<sub>O</sub> should be very high
Answer» E.
3574.

Which of the following CSS list properties is/are correct?

A. Set different list item markers for ordered lists
B. Set different list item markers for unordered lists
C. Set an image as the list item marker
D. All of the mentioned
Answer» D. All of the mentioned
3575.

Which of the following taper is used for ‘shanks of the twist drills’?#

A. Morse taper
B. Brown taper
C. Sharpe taper
D. Jarno taper
Answer» B. Brown taper
3576.

LVTD is a _______ transducer?

A. displacement
B. photoelectric
C. thermal
D. chemical
Answer» B. photoelectric
3577.

The subsonic flow over an airfoil is an example of _________?

A. steady
B. unsteady
C. rotational
D. irrotational
Answer» E.
3578.

Moving down a group, which of the following properties generally diminishes?

A. Electronegativity
B. Metallic character
C. Atomic radius
D. Molar mass
Answer» B. Metallic character
3579.

Which of the following specifies how much the item will grow relative to the rest of the flexible items inside the same container?

A. flex-scale
B. flex-size
C. flex-grow
D. flex-flow
Answer» D. flex-flow
3580.

Calculate the theoretical highest bit rate of a regular telephone line. The signal-to-noise ratio is usually 3162?

A. 34.860 kbps
B. 17.40 kbps
C. 11.62 kbps
D. none of the Mentioned
Answer» B. 17.40 kbps
3581.

A single-pulse transformer with secondary voltage of 230 V, 50 Hz, delivers power to bulb of R = 10 Ω through a half-wave controlled rectifier circuit. For α = 60° and output AC power of 2127 Watts, find the rectification efficienc?#

A. 98.6 %
B. 42 %
C. 28 %
D. 19 %
Answer» D. 19 %
3582.

‘Internal thread cutting’- is suitable with the classification of cutting tool according to the_____?#

A. method of using the tool
B. method of holding the tool
C. method of manufacturing the tool
D. none of the mentioned
Answer» B. method of holding the tool
3583.

Repository experts build ________ and the usability experts build _______?

A. Back end, End user
B. Front end and End user
C. Back user, Front user
D. Back end , Front end
Answer» E.
3584.

Calculate the limiting size, if R is 2.5 cm and the half width is given as 10 cm?

A. 5.1
B. 0.1
C. 0.5
D. 10.1
Answer» E.
3585.

Which is not a type of catalyst?

A. Positive catalyst
B. Negative catalyst
C. Autocatalyst
D. homogeneous catalysis
Answer» E.
3586.

What is the method that is used to generate a processed image that have a specified histogram?

A. Histogram linearization
B. Histogram equalization
C. Histogram matching
D. Histogram processing
Answer» D. Histogram processing
3587.

For passing the parameters to procedures using the PUBLIC & EXTRN directives, it must be declared PUBLIC in th?

A. subroutine
B. procedure
C. main routine
D. main routine and subroutine
Answer» D. main routine and subroutine
3588.

Myoglobin and the subunits of hemoglobin have?

A. Very different primary and tertiary structures
B. Very similar primary and tertiary structures
C. Very similar primary structures, but different tertiary structures
D. Very similar tertiary structures, but different primary structures
Answer» E.
3589.

In pulse modulation, reciprocal of T(time) i?

A. Bandwidth
B. Symbol rate
C. Signal voltage
D. None of the mentioned
Answer» C. Signal voltage
3590.

R1 = 1Ω, R2 = 3Ω, R3 = 5Ω and R4 = 7Ω connected in parallel. Total Current = 23A. Then V, I1 , I2 =?#

A. 12.26v, 1.725, 2.875
B. 12.23v, 2.875, 1.725
C. 11.26v, 1.95, 1.74
D. 11.23v, 1.74, 1.95
Answer» B. 12.23v, 2.875, 1.725
3591.

If R2 = RC RA / (RA +RB +RC ) then R3 equals?

A. R<sub>A</sub> R<sub>B</sub> / (R<sub>A</sub> +R<sub>B</sub> +R<sub>C</sub> )
B. R<sub>C</sub> R<sub>A</sub> / (R<sub>A</sub> +R<sub>B</sub> +R<sub>C</sub> )
C. R<sub>B</sub> R<sub>C</sub> / (R<sub>A</sub> +R<sub>B</sub> +R<sub>C</sub> )
D. R<sub>X</sub> R<sub>A</sub> / (R<sub>A</sub> +R<sub>B</sub> +R<sub>C</sub> )
Answer» B. R<sub>C</sub> R<sub>A</sub> / (R<sub>A</sub> +R<sub>B</sub> +R<sub>C</sub> )
3592.

DC motors are constructed using Permanent Magnet resulting in?

A. Higher torque/inertia ratio
B. Higher operating frequency
C. No filed losses
D. All of the mentioned
Answer» E.
3593.

Which type of fermentation is preferred in bench top fermenter?

A. Batch
B. Fed-batch
C. Continuous
D. Dual or multiple-fermentation
Answer» C. Continuous
3594.

Which SQL statement is used to return only different values ?

A. SELECT DIFFERENT
B. SELECT UNIQUE
C. SELECT DISTINCT
D. SELECT ALL
Answer» D. SELECT ALL
3595.

The un-neutralised ions in the neighbourhood of the junction are known a?

A. Depletion charges
B. Uncovered charges
C. Mobile ions
D. Counter ions
Answer» C. Mobile ions
3596.

The hexadecimal representation of 14 is ______________?

A. A
B. F
C. D
D. E
Answer» E.
3597.

Capillary tension is developed in saturated soil, when__________?

A. Soil is dry
B. Water content is reduced
C. Water content is increased
D. Soil particle is large
Answer» C. Water content is increased
3598.

Submerged cutting helps cutting the workpieces without hampering the flush?

A. True
B. False
Answer» B. False
3599.

IKE is abbreviated as Internet Key Exchange?

A. True
B. False
Answer» B. False
3600.

Not hungr?

A. Hungry
B. Syntax error
C. None of the mentioned
Answer» C. None of the mentioned