Explore topic-wise MCQs in Unit Processes.

This section includes 2114 Mcqs, each offering curated multiple-choice questions to sharpen your Unit Processes knowledge and support exam preparation. Choose a topic below to get started.

301.

The orifice is made of _____

A. iron
B. zinc
C. sapphire
D. graphite
Answer» D. graphite
302.

Generally, the flexible pipe used to carry high pressure water to the cutting head has the diameter equal to _____

A. 4 mm
B. 6 mm
C. 10 mm
D. 12 mm
Answer» C. 10 mm
303.

For which of the following applications, simple water jet machining is not used?

A. Textiles
B. Polymers
C. Reinforced plastics
D. Nonferrous metallic alloys
Answer» D. Nonferrous metallic alloys
304.

_____ process encapsulates contaminants in polyethylene.

A. PERM
B. DERM
C. TERM
D. POPA
Answer» B. DERM
305.

The end product resulting from solidification process is ____________

A. Liquid waste
B. Silt
C. Waste block
D. Organics
Answer» D. Organics
306.

Stabilisation and solidification treatment can be applied for liquid waste.

A. True
B. False
Answer» B. False
307.

Cement kiln dust can be used as binding reagent.

A. True
B. False
Answer» B. False
308.

Stabilisation refers to changes in the ________ properties of hazardous waste.

A. Physical
B. Chemical
C. Biological
D. Physico-chemical
Answer» C. Biological
309.

Solidification refers to changes in the ________ properties of hazardous waste.

A. Physical
B. Chemical
C. Biological
D. Physico-chemical
Answer» B. Chemical
310.

In stabilisation and solidification treatment _______ is mixed with contaminated media.

A. Binding reagent
B. Neutralisation agent
C. Acidic agent
D. Basic agent
Answer» B. Neutralisation agent
311.

________ treatment method prevent immobilization of hazardous waste into environment.

A. Hydrolysis
B. Neutralisation
C. Chemical precipitation
D. Stabilisation and solidification
Answer» E.
312.

Which type of amine is produced by reaction of ketones with secondary amines, followed by reduction?

A. Secondary Aromatic amine
B. N-substituted amine
C. N, N-disubstituted amine
D. Primary aromatic amine
Answer» D. Primary aromatic amine
313.

Which type of amine is produced by reaction of ketones with primary amines, followed by reduction?

A. Secondary Aromatic amine
B. N-substituted amine
C. N, N-disubstituted amine
D. Primary aromatic amine
Answer» C. N, N-disubstituted amine
314.

What will be the product of the following reaction?

A. Propanamine
B. N-methylpropaneamine
C. N, N-dimethylpropanemamine
D. Ethyl amine
Answer» B. N-methylpropaneamine
315.

Gabriel’s phthalimide synthesis is used for the preparation of which amine?

A. Primary aromatic amine
B. Secondary amine
C. Primary aliphatic amine
D. Tertiary amine
Answer» D. Tertiary amine
316.

In the given equation, what is the final product C?

A. Ammonium acetate
B. Acetamide
C. Amino methane
D. Ethanal
Answer» D. Ethanal
317.

Starting from propanoic acid, the following reactions were carried out, what is the compound Z?

A. CH3−CH2−Br
B. CH3−CH2−NH2
C. CH3-CH2-COBr
D. CH3−CH2−CH2−NH2
Answer» C. CH3-CH2-COBr
318.

How can one reduce the aliasing effect on an image?

A. By reducing the high-frequency components of image by blurring the image
B. By increasing the high-frequency components of image by blurring the image
C. By reducing the high-frequency components of image by clarifying the image
D. By increasing the high-frequency components of image by clarifying the image
Answer» B. By increasing the high-frequency components of image by blurring the image
319.

How aliasing does corrupts the sampled image?

A. By introducing additional frequency components to the sampled function
B. By removing some frequency components from the sampled function
C. All of the mentioned
D. None of the mentioned
Answer» B. By removing some frequency components from the sampled function
320.

What is the name of the phenomenon that corrupts the sampled image, and how does it happen?

A. Shannon sampling, if the band-limited functions are undersampled
B. Shannon sampling, if the band-limited functions are oversampled
C. Aliasing, if the band-limited functions are undersampled
D. Aliasing, if the band-limited functions are oversampled
Answer» D. Aliasing, if the band-limited functions are oversampled
321.

For a band-limited function, which Theorem says that “if the function is sampled at a rate equal to or greater than twice its highest frequency, the original function can be recovered from its samples”?

A. Band-limitation theorem
B. Aliasing frequency theorem
C. Shannon sampling theorem
D. None of the mentioned
Answer» D. None of the mentioned
322.

The principal factor to determine the spatial resolution of an image is _______

A. Quantization
B. Sampling
C. Contrast
D. Dynamic range
Answer» C. Contrast
323.

When is air assumed to be incompressible?

A. At low speed
B. At high speed
C. Independent of its speed
D. None of the mentioned
Answer» B. At high speed
324.

For source flow, the radial velocity increases as we move radially outward.

A. True
B. False
Answer» C.
325.

Which of the following is not a case of ideal fluid flow?a) Forced vortex Flowb) Uniform Flowc) Sink Flowd) Superimposed flow 3.What is a special characteristic of uniform flow parallel to X axis?

A. Forced vortex Flowb) Uniform Flowc) Sink Flowd) Superimposed flow 3.What is a special characteristic of uniform flow parallel to X axis?a) Velocity is constant
B. Uniform Flowc) Sink Flowd) Superimposed flow 3.What is a special characteristic of uniform flow parallel to X axis?a) Velocity is constantb) Acceleration is constant
C. Sink Flowd) Superimposed flow 3.What is a special characteristic of uniform flow parallel to X axis?a) Velocity is constantb) Acceleration is constantc) X- component of velocity is constant
D. Superimposed flow 3.What is a special characteristic of uniform flow parallel to X axis?a) Velocity is constantb) Acceleration is constantc) X- component of velocity is constantd) None of the mentionedView Answer
Answer» B. Uniform Flowc) Sink Flowd) Superimposed flow 3.What is a special characteristic of uniform flow parallel to X axis?a) Velocity is constantb) Acceleration is constant
326.

The characteristic of Ideal fluid are

A. Incompressible
B. Inviscid
C. Fluid velocity is uniform
D. Shear stress has a constant, non zero value
Answer» D. Shear stress has a constant, non zero value
327.

The primary mechanism responsible for mixing at the molecular level is called _____

A. Bulk transport
B. Laminar mixing
C. Molecular diffusion
D. Lambda Mixing
Answer» D. Lambda Mixing
328.

______ is frequently encountered when highly viscous liquids are being processed.

A. Bulk transport
B. Laminar mixing
C. Turbulent mixing
D. Transition mixing
Answer» C. Turbulent mixing
329.

____ is a direct result of turbulent fluid flow.

A. Bulk transport
B. Laminar mixing
C. Turbulent mixing
D. Transition mixing
Answer» D. Transition mixing
330.

_____are formed when two or more than two gases or miscible liquids are mixed.

A. Negative mixture
B. Positive mixtures
C. Neutral mixtures
D. Solid mixtures
Answer» C. Neutral mixtures
331.

Which of the following is not seen in cut-paste transposition, but seen in copy-paste method?

A. Synaptic complex
B. Strand transfer
C. Transposase
D. Resolvase
Answer» E.
332.

Which of the following is not true about conservative transposition?

A. It creates direct repeat sequences on either side
B. It is Copy-Paste mechanism
C. Transesterification reaction takes place
D. Class II transposons have this mechanism
Answer» C. Transesterification reaction takes place
333.

Transposition doesn’t require much sequence homology between two genetic molecules, based on this hey can help in _____________

A. Homologous DSB repair
B. Non-homologous end joining
C. Site-specific recombination
D. Homologous recombination
Answer» D. Homologous recombination
334.

Non-autonomous transposons can’t transpose. State whether the statement is true or false.

A. True
B. False
Answer» C.
335.

____________ is mandatory for autonomous transposition.

A. Internal gene
B. Transposase
C. 3’ concensus of region upstream to transposition
D. Branch point A
Answer» C. 3’ concensus of region upstream to transposition
336.

For a given material length, end conditions and equal area the shape of the column which is most efficient as per Euler’s is _________

A. Square
B. Circular
C. I section
D. Tubular
Answer» E.
337.

The slenderness ratio is ________ to critical stress.

A. Directly proportional
B. Inversely proportional
C. Equal
D. Transverse
Answer» C. Equal
338.

The value of _________ is relatively high for short columns.

A. Safe load
B. Factored load
C. Working load
D. Buckling load
Answer» E.
339.

At ___________ load, the column is said to have developed an elastic instability.

A. Safe
B. Working
C. Factored
D. Crippling
Answer» E.
340.

Factor of safety is a ratio of crippling load to __________ load.

A. Critical load
B. Buckling load
C. Safe load
D. Ultimate load
Answer» D. Ultimate load
341.

Which of the following is also known as the working load?

A. Safe load
B. Crippling load
C. Ultimate load
D. Buckling load
Answer» B. Crippling load
342.

The slenderness ratio is the ratio of effective length to least ______________

A. Ultimate load
B. Actual length
C. Radius of gyration
D. Factor of safety
Answer» D. Factor of safety
343.

For ___________ columns, the slenderness ratio is more than 32 and less than 120.

A. Long
B. Short
C. Average
D. Medium
Answer» E.
344.

In short columns, the slenderness ratio is less than __________

A. 32
B. 64
C. 56
D. 28
Answer» B. 64
345.

The hinged end is also known as ___________

A. Fixed end
B. Pinned end
C. Rigid end
D. Free end
Answer» C. Rigid end
346.

_____________ of column mainly depends upon end conditions.

A. Radius of gyration
B. Slenderness ratio
C. Factored load
D. Effective length
Answer» E.
347.

What is the distinguishing property between biotite mica and muscovite mica?

A. Streak
B. Lustre
C. Colour
D. Hardness
Answer» D. Hardness
348.

Pick the wrong statement about mica.

A. They have high hardness
B. They have low hardness
C. They are usually transparent to translucent
D. They are used as good electrical insulators
Answer» B. They have low hardness
349.

What is the streak given by muscovite mica?

A. White
B. Black
C. Yellow
D. Colourless
Answer» E.
350.

There is the presence of eminent cleavage in micas.

A. True
B. False
Answer» B. False