MCQOPTIONS
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MCQOPTIONS
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.
| 501. |
Why is a linear time invariant systems important? |
| A. | They can be structured as wanted |
| B. | They can be molded in any domain |
| C. | They are easy to define |
| D. | They can be represented as a linear combination of signals |
| Answer» E. | |
| 502. |
Convolution is considered in case of ________ |
| A. | Discrete time systems only |
| B. | Continuous time only |
| C. | In both continuous time and discrete time |
| D. | Superposition of various outputs |
| Answer» D. Superposition of various outputs | |
| 503. |
What is the full form of the LTI system? |
| A. | Linear time inverse system |
| B. | Late time inverse system |
| C. | Linearity times invariant system |
| D. | Linear Time Invariant system |
| Answer» E. | |
| 504. |
As the number of turns in the coil increases, what happens to the inductance of the coil? |
| A. | Increases |
| B. | Decreases |
| C. | Remains the same |
| D. | Becomes zero |
| Answer» B. Decreases | |
| 505. |
Consider the following graph plotted between weight fraction of molecules and degree of polymerization. What may be the possible value of p for the curve with highest peak? |
| A. | 0.95 |
| B. | 0.99 |
| C. | 0.89 |
| D. | 0.92 |
| Answer» D. 0.92 | |
| 506. |
Which curve in the given figure possibly represents the highest value of conversion for bifunctional polycondensation? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | Cannot be determined |
| Answer» D. Cannot be determined | |
| 507. |
What is the probability of having tetramers in the preparation of Nylon 12, when 98% of functional groups have reacted? |
| A. | 0.0189 |
| B. | 0.05 |
| C. | 0.256 |
| D. | 1 |
| Answer» B. 0.05 | |
| 508. |
Which of the following expressions correctly represents the number distribution function for a linear polycondensation reaction?(Here N0 and p are total number of initial monomer molecules and extent of reaction initially) |
| A. | Nn=N0(1-p)2pn-1 |
| B. | Nn=N0(1-p)pn-1 |
| C. | Nn= N0pn-1 |
| D. | Nn0n(1-p)2pn |
| Answer» B. Nn=N0(1-p)pn-1 | |
| 509. |
In the general transport equation, ϕ is the flow property. To get the energy equation out of this general equation, which of these variables cannot be used? |
| A. | v |
| B. | T |
| C. | h0 |
| D. | i |
| Answer» B. T | |
| 510. |
Consider the following diagram.In the diagram,q → Time rate of heat energy per unit areaq+\(\frac{\Delta q}{\Delta x}dx=q+\frac{\partial q}{\partial x}dx \) Find the net heat transferred in x-direction. |
| A. | –\(\frac{\partial q}{\partial x}\) |
| B. | –\(\frac{\partial q}{\partial x}dx \,dy \,dz\) |
| C. | –\(\frac{\partial q}{\partial x}dx\) |
| D. | \(\frac{\partial q}{\partial x}dx \,dy \,dz\) |
| Answer» C. –\(\frac{\partial q}{\partial x}dx\) | |
| 511. |
Which of these terms represent the rate of heat addition to the system due to heat transfer? |
| A. | -k gradT |
| B. | k gradT |
| C. | ∇.(k gradT) |
| D. | ∇.(k gradT) |
| Answer» D. ∇.(k gradT) | |
| 512. |
The energy equation should be solved to get this variable of the flow. |
| A. | Velocity |
| B. | Temperature |
| C. | Density |
| D. | Pressure |
| Answer» C. Density | |
| 513. |
The relationship between the rate of heat transfer per unit area \(\dot{q}_s\)=-(k∇T). Where, k is a scalar value of thermal conductivity and ∇T is the gradient of temperature. Which of these following is wrong according to the above equation? |
| A. | Heat transfer is different in different directions |
| B. | The rate of heat transfer depends upon the temperature gradient |
| C. | Heat transfer is in the opposite direction of increasing temperature |
| D. | k is the proportionality constant |
| Answer» B. The rate of heat transfer depends upon the temperature gradient | |
| 514. |
The rate of change of energy in a moving model is \(\rho\frac{De}{Dt}\). In the final equation, this term is reduced to \(\frac{\partial(\rho e)}{\partial t}+\nabla.(\rho e\vec{V})\). Which of these equations is used for this reduction? |
| A. | Equations of state |
| B. | Stress-strain equation |
| C. | Momentum equation |
| D. | Continuity equation |
| E. | }{\partial t}+\nabla.(\rho e\vec{V})\). Which of these equations is used for this reduction?a) Equations of stateb) Stress-strain equationc) Momentum equationd) Continuity equation |
| Answer» E. }{\partial t}+\nabla.(\rho e\vec{V})\). Which of these equations is used for this reduction?a) Equations of stateb) Stress-strain equationc) Momentum equationd) Continuity equation | |
| 515. |
To get the energy equation in terms of temperature, this law is used. |
| A. | Newton’s third law of motion |
| B. | Zeroth law of thermodynamics |
| C. | Fick’s law |
| D. | Fourier’s law of heat conduction |
| Answer» E. | |
| 516. |
The rate of heat increase in a system depends on __________ |
| A. | the rate of heat transferred to the system |
| B. | the rate of heat generated by the system |
| C. | neither the rate of heat generated by the system nor the rate of heat transferred to the system |
| D. | both the rate of heat transferred to the system and the rate of heat generated by the system |
| Answer» E. | |
| 517. |
Consider an infinitesimally small fluid element moving along with the flow. Apply the first law of thermodynamics to this model. Which of these statements is correct? |
| A. | The rate of change of the total energy is equal to the rate of heat addition and work extraction |
| B. | The rate of work extraction is equal to the rate of heat addition and the rate of change of the total energy |
| C. | The rate of heat addition is equal to the rate of work extraction and the rate of change of the total energy |
| D. | The rate of change of the total energy is equal to the rate of work extraction |
| Answer» B. The rate of work extraction is equal to the rate of heat addition and the rate of change of the total energy | |
| 518. |
The physical principle behind the energy equation is _____________ |
| A. | Newton’s second law of motion |
| B. | Zeroth law of thermodynamics |
| C. | First law of thermodynamics |
| D. | Newton’s first law of motion |
| Answer» D. Newton’s first law of motion | |
| 519. |
__________ and glass-ceramic contain rich CaO and P2O5 contents. |
| A. | Bioactive glass |
| B. | Hydrogel |
| C. | Metal |
| D. | Mesh |
| Answer» B. Hydrogel | |
| 520. |
In general, bioceramics are classified into two families. |
| A. | TRUE |
| B. | FALSE |
| Answer» B. FALSE | |
| 521. |
_____________ is a large class of inorganic nonmetallic materials. |
| A. | Bioceramics |
| B. | Polymers |
| C. | Plastics |
| D. | Antibodies |
| Answer» B. Polymers | |
| 522. |
__________ family of ceramics is widely used for bone defects. |
| A. | Calcium phosphate |
| B. | Calcium oxide |
| C. | Calcium carbonate |
| D. | Calcium bicarbonate |
| Answer» B. Calcium oxide | |
| 523. |
____________ was the earliest used bio-ceramic. |
| A. | Porcelain |
| B. | Gypsum |
| C. | Gelatin |
| D. | Cement |
| Answer» B. Gypsum | |
| 524. |
The peroxide value of meat should be low. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 525. |
The water activity of dry sausage is more than 0.9. |
| A. | True |
| B. | False |
| Answer» C. | |
| 526. |
Which of the following is a semi-dry sausage? |
| A. | Salami |
| B. | Dauerwurst |
| C. | Sobrasada |
| D. | Lebanon bologna |
| Answer» E. | |
| 527. |
What is the pH range of meat? |
| A. | 5.0 – 5.5 |
| B. | 5.5 – 6.0 |
| C. | 6.0 – 6.5 |
| D. | 7.0 – 8.0 |
| Answer» C. 6.0 – 6.5 | |
| 528. |
Which of the following is the process of making the dough? |
| A. | Chorleywood process |
| B. | Finkelstein process |
| C. | Sandmeyer process |
| D. | Hoffmann process |
| Answer» B. Finkelstein process | |
| 529. |
Which of the following leads to staling of bread? |
| A. | Carbon-dioxide evolution |
| B. | Loss of water |
| C. | Oxygenation |
| D. | Heating |
| Answer» C. Oxygenation | |
| 530. |
Which of the following is the first step in bread production? |
| A. | Raw materials preparation |
| B. | Kneading |
| C. | Shaping |
| D. | Slicing |
| Answer» B. Kneading | |
| 531. |
Where did Rum originate? |
| A. | London |
| B. | America |
| C. | India |
| D. | Carribean |
| Answer» E. | |
| 532. |
Which of the following is obtained from blended wine spirits? |
| A. | Brandy |
| B. | Armagnac |
| C. | Cognac |
| D. | Rum |
| Answer» B. Armagnac | |
| 533. |
Which of the following is employed in the production of cognac? |
| A. | Haber’s process |
| B. | Contact process |
| C. | Charente process |
| D. | Sandmeyer process |
| Answer» D. Sandmeyer process | |
| 534. |
Which of the following distilled beverage is derived from grain? |
| A. | Rum |
| B. | Whiskey |
| C. | Brandy |
| D. | Cognac |
| Answer» C. Brandy | |
| 535. |
Which of the following causes chill hazes in cider? |
| A. | Isomers production |
| B. | Polymeric glucan |
| C. | Complex formation |
| D. | Glycerol breakdown |
| Answer» D. Glycerol breakdown | |
| 536. |
Which of the following is a major component of cider apple juice? |
| A. | Glucose |
| B. | Pectin |
| C. | Sucrose |
| D. | Fructose |
| Answer» E. | |
| 537. |
Which of the following is produced by the fermentation of apples? |
| A. | Kvass |
| B. | Cider |
| C. | Kombucha |
| D. | Sauerkraut |
| Answer» C. Kombucha | |
| 538. |
Metal-semiconductor-metal (MSM) photo-detectors are photoconductive detectors. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 539. |
Waveguide structure provides high quantum efficiency. |
| A. | True |
| B. | False |
| Answer» C. | |
| 540. |
Waveguide phototransistors utilize a ___________ waveguide layer under the _________ transistor region. |
| A. | Active, passive |
| B. | Passive, active |
| C. | Homo, hetero |
| D. | Hetero, homo |
| Answer» C. Homo, hetero | |
| 541. |
The _____________ at emitter-base junction gives good emitter base injection efficiency. |
| A. | Homo-junction |
| B. | Depletion layer |
| C. | Holes |
| D. | Hetero-junction |
| Answer» E. | |
| 542. |
The n-p-n hetero-junction phototransistor is grown using ______________ |
| A. | Liquid-phase tranquilizers |
| B. | Liquid-phase epistaxis |
| C. | Solid substrate |
| D. | Hetero poleax |
| Answer» C. Solid substrate | |
| 543. |
The detection mechanism in the ____________ photo-detector includes inter sub-band transitions. |
| A. | Dwell |
| B. | Set |
| C. | Avalanche |
| D. | Futile |
| Answer» B. Set | |
| 544. |
For a phototransistor having gain of 116.5, wavelength of 1.28 μm, optical power 123μW. Determine collector current. |
| A. | 0.123 mA |
| B. | 0.0149 mA |
| C. | 1.23 mA |
| D. | 0.54 mA |
| Answer» C. 1.23 mA | |
| 545. |
A phototransistor has collector current of 18 mA, incident optical power of 128 μW with a wavelength of 1.24 μm. Determine an optical gain. |
| A. | 1.407 *102 |
| B. | 19.407 *102 |
| C. | 2.407 *102 |
| D. | 3.407 *102 |
| Answer» B. 19.407 *102 | |
| 546. |
The _____________ is photosensitive to act as light gathering element. |
| A. | Base-emitter junction |
| B. | Base-collector junction |
| C. | Collector-emitter junction |
| D. | Base-collector junction and Base-emitter junction |
| Answer» B. Base-collector junction | |
| 547. |
The structural shapes, unit costs are assumed without considering ____________ |
| A. | Machines used |
| B. | Site conditions |
| C. | Constructions |
| D. | Funds |
| Answer» C. Constructions | |
| 548. |
Optimization studies were conducted for slabs of type ____________ |
| A. | Pretensioning |
| B. | Post tensioning |
| C. | Partially prestressed slabs |
| D. | Limited slabs |
| Answer» D. Limited slabs | |
| 549. |
The complete definition of the optimum design of prestressed beams for class 1 is? |
| A. | 24 constraints |
| B. | 27 constraints |
| C. | 23 constraints |
| D. | 20 constraints |
| Answer» C. 23 constraints | |
| 550. |
The additional constraints are imposed on the geometrical dimensions of ____________ |
| A. | Cross section |
| B. | Edges |
| C. | Corners |
| D. | Ranges |
| Answer» B. Edges | |