MCQOPTIONS
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MCQOPTIONS
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.
| 601. |
Which of the following molecules is diamagnetic? |
| A. | O2 |
| B. | CO |
| C. | \(N_2^+\) |
| D. | NOView answer |
| Answer» C. \(N_2^+\) | |
| 602. |
Which of the following is the correct order for bonding energies of molecular orbitals? |
| A. | σ1s < σ2s < σ*2s < σ*1s |
| B. | σ1s < σ2s < σ*1s < σ*2s |
| C. | σ1s < σ*1s < σ2s < σ*2s |
| D. | none of the mentionedView answer |
| Answer» D. none of the mentionedView answer | |
| 603. |
sp3 hybridization is present in which of the following molecules? |
| A. | BeCl2 |
| B. | H2O |
| C. | C2H4 |
| D. | BCl3View answer |
| Answer» C. C2H4 | |
| 604. |
In water, the bond angle between the H-O H-O bond is less than 109° Why? |
| A. | The H atoms attract each other |
| B. | Oxygen atom is much larger than Hydrogen atoms |
| C. | Lone pair-bond pair repulsion is greater than bond pair-bond pair repulsion |
| D. | VSEPR theory does not apply for planar molecules like waterView answer |
| Answer» D. VSEPR theory does not apply for planar molecules like waterView answer | |
| 605. |
Which of the following is a secondary bond? |
| A. | Metallic bond |
| B. | Hydrogen bond |
| C. | Covalent bond |
| D. | Ionic bondView answer |
| Answer» C. Covalent bond | |
| 606. |
Why dynamic compensation is used? |
| A. | To increase pass band |
| B. | To increase cut off frequency |
| C. | To improve dynamic performance |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 607. |
Tuned LCR circuit forms band-pass filters. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 608. |
Identify the frequency response? |
| A. | Low pass filter |
| B. | High pass filter |
| C. | Band pass filter |
| D. | Band reject filter |
| Answer» D. Band reject filter | |
| 609. |
Which of the following is true for ideal filter frequency response? |
| A. | Abrupt change from pass band to reject band |
| B. | Smooth change from pass band to reject band |
| C. | Contains only pass band |
| D. | None of the mentioned |
| Answer» B. Smooth change from pass band to reject band | |
| 610. |
Which of these is a binary cycle? |
| A. | Mercury-steam cycle |
| B. | Mercury-water cycle |
| C. | Mercury-Sodium cycle |
| D. | None of the mentioned |
| Answer» B. Mercury-water cycle | |
| 611. |
What is the maximum content of moisture allowed at the turbine exhaust in the steam power plant? |
| A. | 50 % |
| B. | 60 % |
| C. | 30 % |
| D. | 15 % |
| Answer» E. | |
| 612. |
When the pressure at which heat is added in Rankine cycle increases, the moisture content at the turbine exhaust? |
| A. | increases |
| B. | decreases |
| C. | remains same |
| D. | cannot say |
| Answer» B. decreases | |
| 613. |
The maximum efficiency of Rankine cycle (ηr) is the function of ___________ |
| A. | the mean temperature of heat addition (Tm) only |
| B. | the mean temperature of heat addition (Tm) and temperature of steam at the exit of the turbine |
| C. | the mean temperature of heat addition (Tm) and temperature of steam at the entry of the turbine |
| D. | the mean temperature of heat addition (Tm) and temperature of steam at exit of the condenser |
| Answer» B. the mean temperature of heat addition (Tm) and temperature of steam at the exit of the turbine | |
| 614. |
If Tm be the mean temperature of heat addition in Rankine cycle as shown in diagram,what will the formula for efficiency of Rankine cycle? |
| A. | (ηr) = (T3 / Tm) |
| B. | (ηr) = 1 – (T3 / Tm) |
| C. | (ηr) = 1 – (T2 / Tm) |
| D. | (ηr) = (T2 / Tm) |
| Answer» C. (ηr) = 1 – (T2 / Tm) | |
| 615. |
How can we differentiate Rankine cycle from Carnot cycle? |
| A. | Heat addition process of Rankine cycle is reversible isothermal whereas heat addition process of Carnot cycle is reversible isobaric |
| B. | Heat addition process of Rankine cycle is reversible isobaric whereas heat addition process of Carnot cycle is reversible isothermal |
| C. | Heat addition process of Rankine cycle is reversible isentropic whereas heat addition process of Carnot cycle is reversible isothermal |
| D. | Both cycles are identical except the working fluid used |
| Answer» C. Heat addition process of Rankine cycle is reversible isentropic whereas heat addition process of Carnot cycle is reversible isothermal | |
| 616. |
Stickland reaction is the alternative name for ________ |
| A. | Lactic acid fermentation |
| B. | Alcoholic fermentation |
| C. | Mixed acid fermentation |
| D. | Amino acid fermentation |
| Answer» E. | |
| 617. |
How many ATPs are paid back during the Pentose phosphate Pathway? |
| A. | 1 |
| B. | 3 |
| C. | 4 |
| D. | 5 |
| Answer» B. 3 | |
| 618. |
The step where glyceraldehyde-3-phosphate is oxidized is substrate-level phosphorylation. |
| A. | True |
| B. | False |
| Answer» C. | |
| 619. |
Glycolysis can occur in ___________ |
| A. | aerobic cells |
| B. | anaerobic cells |
| C. | both aerobic and anaerobic cells |
| D. | neither aerobic and anaerobic cells |
| Answer» D. neither aerobic and anaerobic cells | |
| 620. |
The flow in rate of C6H6 and H2 in a system are 3 mole/hr each what is the flow out rate of C6H12? |
| A. | 1 mole/hr |
| B. | 1.2 mole/hr |
| C. | 1.5 mole/hr |
| D. | 2 mole/hrView answer |
| Answer» B. 1.2 mole/hr | |
| 621. |
The flow in rate of C3H8 and O2 in a system are 2 mole/hr each what is the flow out rate of CO2? |
| A. | 1 mole/hr |
| B. | 1.2 mole/hr |
| C. | 1.5 mole/hr |
| D. | 2 mole/hrView answer |
| Answer» C. 1.5 mole/hr | |
| 622. |
The flow in rate of CH4 and O2 in a system are 2 mole/hr each what is the flow out rate of CO2? |
| A. | 1 mole/hr |
| B. | 2 mole/hr |
| C. | 3 mole/hr |
| D. | 4 mole/hrView answer |
| Answer» B. 2 mole/hr | |
| 623. |
The flow in rate of H2SO4 and NaCl in a system are 2 mole/hr each what is the flow out rate of HCl? |
| A. | 1 mole/hr |
| B. | 2 mole/hr |
| C. | 3 mole/hr |
| D. | 4 mole/hrView answer |
| Answer» C. 3 mole/hr | |
| 624. |
The flow in rate of HCl and NaOH in a system are 1 mole/hr each what is the flow out rate of NaCl? |
| A. | 1 mole/hr |
| B. | 2 mole/hr |
| C. | 3 mole/hr |
| D. | 4 mole/hrView answer |
| Answer» B. 2 mole/hr | |
| 625. |
In a steady-state reactive system, 5 molar KNO3 and 5 molar H2SO4 are supplied to the system, then what is the amount of K2SO4 produced? |
| A. | 2.5 molar |
| B. | 5 molar |
| C. | 7.5 molar |
| D. | 10 molarView answer |
| Answer» B. 5 molar | |
| 626. |
In a steady-state reactive system, 5 molar CH4 and 5 molar O2 are supplied to the system, then what is the amount of CO2 produced? |
| A. | 2.5 molar |
| B. | 5 molar |
| C. | 7.5 molar |
| D. | 10 molarView answer |
| Answer» C. 7.5 molar | |
| 627. |
In a steady-state reactive system, 2 molar NaCl and 1 molar H2CO3 are supplied to the system both at the rate of 100 mole/min, then how much Na2CO3 produced? |
| A. | 1 molar |
| B. | 2 molar |
| C. | 3 molar |
| D. | 4 molarView answer |
| Answer» B. 2 molar | |
| 628. |
In a steady-state reactive system, NaCl and H2CO3 are supplied to the system at the rate of 200 L/min and 100 L/min respectively, what is the rate at which Na2CO3 is produced? |
| A. | 100 L/min |
| B. | 200 L/min |
| C. | 300 L/min |
| D. | 400 L/minView answer |
| Answer» D. 400 L/minView answer | |
| 629. |
In a system if, Accumulation = Input – Output, where both the terms are distinct and non-zero, then the system is which of the following? |
| A. | Steady-state |
| B. | Closed |
| C. | Non-reactive |
| D. | None of the mentionedView answer |
| Answer» D. None of the mentionedView answer | |
| 630. |
In a system if, Accumulation = Generation – Consumption, where both the terms are distinct and non-zero, then the system is which of the following? |
| A. | Steady-state |
| B. | Closed |
| C. | Non-reactive |
| D. | None of the mentionedView answer |
| Answer» C. Non-reactive | |
| 631. |
In a system if, Accumulation = Input – Output + Generation – Consumption, where all the four terms are distinct and non-zero, then the system is which of the following? |
| A. | Steady-state |
| B. | Closed |
| C. | Non-reactive |
| D. | None of the mentionedView answer |
| Answer» E. | |
| 632. |
The general material balance equation for reactive system is Accumulation = Input + Generation – x, what is x? |
| A. | Consumption – Output |
| B. | Consumption + Output |
| C. | Output – Consumption |
| D. | None of the mentionedView answer |
| Answer» C. Output – Consumption | |
| 633. |
How many reaction forces are involved in a roller type of joint? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» B. 2 | |
| 634. |
How many reaction forces are involved in a short link type of joint? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» B. 2 | |
| 635. |
The external stability of the space truss requires that the support reactions keep the truss in force equilibrium about all the axes.State whether the above statement is true or false. |
| A. | true |
| B. | false |
| Answer» C. | |
| 636. |
What is the simplest element of a space truss |
| A. | triangle |
| B. | tetrahedron |
| C. | octahedron |
| D. | pyramid |
| Answer» C. octahedron | |
| 637. |
Point out the wrong or irrelevant mathematical method in motif analysis. |
| A. | Enumeration |
| B. | Probabilistic Optimization |
| C. | Deterministic Optimization |
| D. | Literature mining |
| Answer» E. | |
| 638. |
Which of the following is false in case of the CDART and its algorithm? |
| A. | CDART is a domain search program that combines the results from RPS-BLAST, SMART, and Pfam |
| B. | The program is now an integral part of the regular BLAST search function |
| C. | CDART is a substitute for individual database searches |
| D. | It stands for Conserved Domain Architecture |
| Answer» D. It stands for Conserved Domain Architecture | |
| 639. |
Which of the following is false in case of the database InterPro and its algorithm? |
| A. | InterPro is an integrated pattern database designed to unify multiple databases for protein domains and functional sites |
| B. | This database integrates information from PROSITE, Pfam, PRINTS, ProDom, and SMART databases |
| C. | Only overlapping motifs and domains in a protein sequence derived by all five databases are included |
| D. | All the motifs and domains in a protein sequence derived by all five databases are included |
| Answer» E. | |
| 640. |
Which of the following is not an advantage of Statistical models’ methods in analyzing protein motifs? |
| A. | Sequence information is preserved from a multiple sequence alignment and expresses it with probabilistic models |
| B. | Statistical models allow partial matches and compensate for unobserved sequence patterns using pseudo-counts |
| C. | Statistical models have stronger predictive power than the regular expression based approach, even when they are derived from a limited set of sequences |
| D. | The comparative flexibility is less in case of these methods when compared to regular expressions methods |
| Answer» E. | |
| 641. |
‘Head restraints’ are an _________ |
| A. | Automotive style feature |
| B. | Automotive safety feature |
| C. | Automotive performance feature |
| D. | None of the mentioned |
| Answer» C. Automotive performance feature | |
| 642. |
A ‘bucket seat’ can accomodate how many persons? |
| A. | One |
| B. | Two |
| C. | Four |
| D. | None of the mentioned |
| Answer» B. Two | |
| 643. |
The central portion of the wheel is called _______ |
| A. | Rim |
| B. | Scale |
| C. | Hub |
| D. | Axle |
| Answer» D. Axle | |
| 644. |
Why ‘Bumpers’ are used in cars? |
| A. | To reduce the impact in case of low speed collisions |
| B. | To improve the aerodynamics of a car |
| C. | To increase the engine performance |
| D. | None of the mentioned |
| Answer» B. To improve the aerodynamics of a car | |
| 645. |
An upraised part on the hood which directs the air flow into the engine compartment is called _____ |
| A. | Spoiler |
| B. | Hotpipe |
| C. | Hood scoop |
| D. | Wings |
| Answer» D. Wings | |
| 646. |
The lid that covers the engine top in a car and situated at the front is called ________ |
| A. | Gill |
| B. | Softtop |
| C. | Bonnet |
| D. | Spoiler |
| Answer» D. Spoiler | |
| 647. |
What are ‘Wings’ of a vehicle? |
| A. | Spoilers at the front of a vehicle |
| B. | Spoilers at the rear of a vehicle |
| C. | Spoilers at the sides of a vehicle |
| D. | Spoilers at the top of a vehicle |
| Answer» C. Spoilers at the sides of a vehicle | |
| 648. |
What are ‘Air Dams’? |
| A. | Spoilers at the front of a vehicle |
| B. | Spoilers at the rear of a vehicle |
| C. | Spoilers at the sides of a vehicle |
| D. | Spoilers at the top of a vehicle |
| Answer» B. Spoilers at the rear of a vehicle | |
| 649. |
Which of these were or are used in automobiles to provide suspension? |
| A. | Leaf springs |
| B. | Coil springs |
| C. | Torsion bars |
| D. | All of the mentioned |
| Answer» E. | |
| 650. |
The electrical system of an automobile contains which of the following? |
| A. | Battery |
| B. | Alternators |
| C. | Lighting systems |
| D. | All of the mentioned |
| Answer» E. | |