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.

5151.

Which of the following does not hold true about ECM?

A. ECM cell must avoid flutter and arcing
B. Part and the cathode must have adequate current-carrying capacity
C. Tool must have shape exactly same as that of the mirror image of the part
D. It gives burr free surface
Answer» D. It gives burr free surface
5152.

For a compressible fluid, if there is no change in specific volume at constant temperature, what type of process it is?

A. Isothermal process
B. Adiabatic Process
C. Polytropic process
D. None of the mentioned
Answer» B. Adiabatic Process
5153.

Sharpening is analogous to which of the following operations?

A. To spatial integration
B. To spatial differentiation
C. All of the mentioned
D. None of the mentioned
Answer» C. All of the mentioned
5154.

The Adapter patterns provide object-oriented adapters in which of theses varieties?

A. One uses inheritance
B. one uses delegation
C. All of the mentioned
D. None of the mentioned
Answer» D. None of the mentioned
5155.

On the basis of nature, communicating can be of two types.

A. True
B. False
Answer» B. False
5156.

Which of the following grade of a hole is mostly used for non-circular fits?

A. H5
B. H6
C. H7
D. H9
Answer» E.
5157.

The stress represented by sin (t) + 2 belongs to which category?

A. Fluctuating Stresses
B. None of the mentioned
C. Repeated Stresses
D. Reversed Stresses
Answer» B. None of the mentioned
5158.

Another method of DNA recovery is termed as freeze-squeeze. The correct statement for it is?

A. The slice containing DNA is cut and frozen into liquid oxygen
B. Freezing doesn’t have any effect on the DNA structure
C. After freezing centrifugation is carried out through glass wool plug
D. The substance used for centrifugation allows the gel to pass through but the liquid is retained
Answer» D. The substance used for centrifugation allows the gel to pass through but the liquid is retained
5159.

To create an archive named abc.tar consisting of two files, file01 and file02, which of the following command will be used?

A. tar -cvf abc.tar file01 file02
B. tar -cvf file01 file02 abc.tar
C. tar -cv abc.tar file01 file02
D. tar -c abc.tar file01 file02
Answer» C. tar -cv abc.tar file01 file02
5160.

What is the nominal range of Bluetooth?

A. 1 Km
B. 10 m
C. 1 m
D. 10 Km
Answer» C. 1 m
5161.

A variety of pretreatment processes applied to pulp lower the amount of bleaching chemicals required.

A. True
B. False
Answer» B. False
5162.

Which of the following sentences is untrue with respect to proteins?

A. Lysine is an essential amino acid.
B. The requirement of essential amino acids per kg of protein is called ‘reference pattern of amino acids’
C. Limiting amino acid content is the amino acid found in maximum quantity in the protein
D. There are 20 amino acids in the protein we require everyday
Answer» D. There are 20 amino acids in the protein we require everyday
5163.

Impedance can be measured by connecting an ohm meter across input or output.

A. True
B. False
Answer» C.
5164.

The pressure of which gas gives the reading of water content on the pressure gauge?

A. Methane
B. Acetone
C. Acetylene
D. Carbon dioxide
Answer» D. Carbon dioxide
5165.

How is throwaway prototype different from evolutionary prototype ?

A. It involves successive steps
B. It involves just one task
C. The prototype is built with the idea that it will eventually be converted into final system
D. It has a shorter development time
Answer» C. The prototype is built with the idea that it will eventually be converted into final system
5166.

Impulse turbine and reaction turbine are classified based on ?

A. Type of energy at inlet
B. Direction of flow through runner
C. Head at inlet of turbine
D. Specific speed of turbine
Answer» B. Direction of flow through runner
5167.

The main concern before doing hopkinson’s test for finding efficiency is$

A. needs one motor and one generator is that it
B. ignores iron and stray losses
C. needs one motor
D. requires identical shunt machines
Answer» E.
5168.

Calculate the Nyquist rate for the signal :

A. = 12cos50πt + 7 cos75π t – 13 cos100πt
B. 300 Hz
C. 600 Hz
D. 100 Hz
Answer» D. 100 Hz
5169.

What concentration of iron and manganese will cause unpleasant taste and odor of water?

A. 1ppm
B. 2ppm
C. 3ppm
D. >3ppm
Answer» E.
5170.

Why does the integration of YEp vector occur in a yeast chromosome?

A. Recombination
B. Smaller size
C. Similarity with host
D. Lytic cycle
Answer» B. Smaller size
5171.

Error in ()

A. Error due to absence of comma
B. Error due to command
C. Logical 1
Answer» B. Error due to command
5172.

________ uses directional antennas to control interference.

A. Sectoring
B. Cell splitting
C. Repeaters
D. Micro cell zone concept
Answer» B. Cell splitting
5173.

What is the relationship between turbidity and TSS For a settled secondary effluent?

A. TSS = (2.3) x Turbidity
B. TSS = (2.0) x Turbidity
C. TSS = (2.5) x Turbidity
D. TSS = (1.3) x Turbidity
Answer» B. TSS = (2.0) x Turbidity
5174.

The maps in India related to topography are prepared by

A. Geological survey of India
B. Survey of India
C. NHAI
D. GOI
Answer» C. NHAI
5175.

Resultant ampere-turn distribution of a DC machine is given by _________

A. AT<sub>resultant</sub>(∅) = AT<sub>f</sub> (∅) – AT<sub>a</sub>(∅)
B. AT<sub>resultant</sub>(∅) = – AT<sub>f</sub> (∅) + AT<sub>a</sub>(∅)
C. AT<sub>resultant</sub>(∅) = -AT<sub>f</sub> (∅) – AT<sub>a</sub>(∅)
D. AT<sub>resultant</sub>(‚àÖ) = AT<sub>f</sub> (‚àÖ) + AT<sub>a</sub>(‚àÖ)
Answer» E.
5176.

Based on what basis are fuels compared?

A. Fire point value
B. High calorific value
C. Flash point value
D. Low calorific value
Answer» E.
5177.

Shear Capacity of HSFG bolts is

A. μ<sub>f</sub>n<sub>e</sub>k<sub>h</sub>F<sub>o</sub>
B. μ<sub>f</sub>n<sub>e</sub>k<sub>h</sub>F<sub>o</sub>γ<sub>mf</sub>
C. μ<sub>f</sub>n<sub>e</sub>k<sub>ho</sub>γ<sub>mf</sub>
D. μ<sub>f</sub>n<sub>e</sub>k<sub>h</sub>F<sub>o</sub>/γ<sub>mf</sub>
Answer» E.
5178.

The output is suppressed

A. A row vector
B. A row vector concatenated with a null matrix
C. Error
Answer» B. A row vector concatenated with a null matrix
5179.

Which of the following is not a part of Juran Trilogy?

A. Planning
B. Control
C. Check
D. Improvement
Answer» D. Improvement
5180.

Heat transferred at constant _____ increases the _____ of a system.

A. pressure, increases
B. volume, increases
C. both of the mentioned
D. none of the mentioned
Answer» D. none of the mentioned
5181.

What is the formula for obtaining the current in the primary winding?

A. current in primary winding = kVA per turn * 103 * primary voltage
B. current in primary winding = kVA per phase * 103 * primary voltage
C. current in primary winding = kVA per turn * 103 / primary voltage
D. current in primary winding = kVA per phase * 103 / primary voltage
Answer» E.
5182.

In an ADC, we can calculate the output voltage from the formula

A. Step size / Vin
B. Step size * Vin
C. Vin / step size
D. Vref / step size
Answer» D. Vref / step size
5183.

Which of the following is not a type of detector used in gas chromatography?

A. Argon ionisation detector
B. Thermal conductivity detector
C. UV visible spectrometric detector
D. Electron capture detector
Answer» D. Electron capture detector
5184.

The ________________ is essentially used to search for patterns in target string.

A. Like Predicate
B. Null Predicate
C. In Predicate
D. Out Predicate
Answer» B. Null Predicate
5185.

The use of crushed aggregates may results in 10 to 20% higher compressive strength. Is this statement true or false?

A. True
B. False
Answer» B. False
5186.

Empty set is a

A. Invalid set
B. Infinite set
C. Finite set
D. None of the mentioned
Answer» D. None of the mentioned
5187.

Class used to give a class behavior of a Dispatcher Servlet.

A. AbstractController
B. Controller
C. Abstract Class
D. AbstractAction
Answer» B. Controller
5188.

When the secondary circuit of a C.T. is open,

A. a very high flux density is produced
B. a very low flux density is produced
C. a moderate flux density is produced
D. no flux density is produced
Answer» B. a very low flux density is produced
5189.

Feed water from the hot well is supplied to steam generator by using the _________

A. Sewers
B. Cistern
C. Water trough
D. Feed pump
Answer» E.
5190.

To measure residual lignin prior to bleaching pulp brightness between bleaching stages are often used to control the bleaching operation.

A. True
B. False
Answer» B. False
5191.

Reinforced concrete shells are ideally suited to cover floor spaces of up to:

A. 15m
B. 25m
C. 30m
D. 40m
Answer» D. 40m
5192.

What is the sequence y(n) that results from the use of four point DFTs if the impulse response is h(n)={1,2,3} and the input sequence x(n)={1,2,2,1}?

A. {9,9,7,11}
B. {1,4,9,11,8,3}
C. {7,9,7,11}
D. {9,7,9,11}
Answer» E.
5193.

The relationship between Youngs modulus E, bulk modulus K if the value of Poissons ratio is unity will be

A. E = -3K
B. K = -3E
C. E = 0
D. K = 0
Answer» B. K = -3E
5194.

The standby FMC performs calculations even when both the FMC are fully functional.

A. True
B. False
Answer» C.
5195.

Find the resistance of an intrinsic Ge rod cm long, 1mm wide and 1mm thick at 300K.

A. 2.32 ohm
B. 5314 ohm
C. 4310 ohm
D. 431 ohm
Answer» D. 431 ohm
5196.

Let f(x) = eex assuming all the nth derivatives at x =0 to be 1 the value of the (n + 1)th derivative can be written as

A. e – 1 + 2<sup>n</sup>
B. 0
C. 1
D. None
Answer» B. 0
5197.

A piston-cylinder contains carbon dioxide at 2MPa with V=50 L. The device has a mass of 4 kg. Everything is initially at 200°C. By heat transfer the whole system cools to 25°C, at which point the gas pressure is 1.5 MPa. Find the work done.$

A. -10.0 kJ
B. -12.0 kJ
C. -14.0 kJ
D. -16.0 kJ
Answer» D. -16.0 kJ
5198.

Mathematically, for two vectors A and B of any magnitude, the cross product of both, i.e. AxB = given by:

A. |A||B|sin√ò
B. |A||B|
C. |A||B|cos√ò
D. |A||B|sin(180°+Ø)
Answer» B. |A||B|
5199.

Silicon carbides resist oxidation up to ______

A. 100<sup>o</sup>C
B. 500<sup>o</sup>C
C. 1000<sup>o</sup>C
D. 1500<sup>o</sup>C
Answer» E.
5200.

Nested documents inside the HTML documents can be created using ___________

A. frame
B. nest
C. iframe
D. into
Answer» D. into