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.
| 1951. |
Total stress or unit pressure on a soil mass is ___________ |
| A. | Total load |
| B. | Total surface area |
| C. | Total volume |
| D. | Total weight |
| Answer» B. Total surface area | |
| 1952. |
What bonds stabilize the extracellular structure of proteins? |
| A. | Hydrogen bond |
| B. | Disulfide bonds |
| C. | Hydrogen bonds |
| D. | Ionic bonds |
| Answer» C. Hydrogen bonds | |
| 1953. |
Which of the following is a characteristic of a quaternary protein structure? |
| A. | Formed by any single peptide chain in a whole protein molecule |
| B. | Arrangement of polypeptide chains |
| C. | Arrangement of different folding of the structure |
| D. | Arrangement of the water molecules on the surface |
| Answer» B. Arrangement of polypeptide chains | |
| 1954. |
Intracellular protein tertiary structures mostly held together by ___________ |
| A. | Covalent forces |
| B. | Disulfide bridges |
| C. | Weak forces |
| D. | Ionic bonds |
| Answer» D. Ionic bonds | |
| 1955. |
Which of the following will be a characteristic of homotypic quaternary structure? |
| A. | Formed by any single peptide chain in a whole protein molecule |
| B. | Arrangement of polypeptide chains |
| C. | Association between identical polypeptides |
| D. | Association between subunits of different structure |
| Answer» D. Association between subunits of different structure | |
| 1956. |
B-Sheet is the most stable. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 1957. |
Adjacent polypeptide segments are stacked one above other. |
| A. | True |
| B. | False |
| Answer» C. | |
| 1958. |
Alpha-helix and b-sheet, if occur together, are found in different structural layers. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 1959. |
What is the name of the bond formed when electrons are shared unequally? |
| A. | Polar covalent bond |
| B. | Nonpolar covalent bond |
| C. | Hydrophobic interaction |
| D. | Metallic bond |
| Answer» B. Nonpolar covalent bond | |
| 1960. |
What is the name of the bond formed when electrons are shared equally? |
| A. | Disulfide bond |
| B. | Nonpolar covalent bond |
| C. | Hydrophobic interaction |
| D. | Metallic bond |
| Answer» C. Hydrophobic interaction | |
| 1961. |
What is the name of the bond found in metals; holds metal atoms together very strongly? |
| A. | Disulfide bond |
| B. | Ionic bond |
| C. | Hydrophobic interaction |
| D. | Metallic bond |
| Answer» E. | |
| 1962. |
What is the name of the bond formed between two ions by the transfer of electrons? |
| A. | Disulfide bond |
| B. | Ionic bond |
| C. | Hydrophobic interaction |
| D. | Covalent bond |
| Answer» C. Hydrophobic interaction | |
| 1963. |
What is the name of the bond formed between two ions by the sharing of electrons? |
| A. | Disulfide bond |
| B. | H bond |
| C. | Hydrophobic interaction |
| D. | Covalent bond |
| Answer» E. | |
| 1964. |
Van der Waals forces are the only attractive forces present in nonpolar compounds. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 1965. |
Which of the following is a characteristic of the secondary structure of a protein? |
| A. | Amino acid sequence |
| B. | Association of secondary structure |
| C. | Alpha helix and beta sheets |
| D. | Association of polypeptides |
| Answer» D. Association of polypeptides | |
| 1966. |
What is the name of the bond which is caused by changes in electron density? |
| A. | Vander Waals force |
| B. | H bond |
| C. | Hydrophobic interaction |
| D. | Electrostatic bond |
| Answer» B. H bond | |
| 1967. |
Steady flow means that the rates of flow of mass and energy across the control surface |
| A. | varies |
| B. | remains constant |
| C. | depends on the control surface |
| D. | none of the mentioned |
| Answer» C. depends on the control surface | |
| 1968. |
The surface of the control volume is known as the control surface. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 1969. |
If a certain mass of steam is considered as the thermodynamic system, then the energy equation becomes |
| A. | Q=ΔKE + ΔPE – ΔU + W |
| B. | Q=ΔKE + ΔPE – ΔU – W |
| C. | Q=-ΔKE – ΔPE + ΔU + W |
| D. | Q=ΔKE + ΔPE + ΔU + W |
| Answer» E. | |
| 1970. |
Specific heat of a substance at constant pressure is a property of the system. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 1971. |
The specific heat of a substance at constant volume is defined as the rate of change of ___ with respect to ___ |
| A. | specific internal energy, temperature |
| B. | work, pressure |
| C. | specific internal energy, pressure |
| D. | heat, temperature |
| Answer» B. work, pressure | |
| 1972. |
What is relation between PSI and Bar? |
| A. | 1 Bar = 14.5 Psi |
| B. | 1 Bar = 20 Psi |
| C. | 1 Bar = 201 Psi |
| D. | 1 Bar = 1 Psi |
| Answer» B. 1 Bar = 20 Psi | |
| 1973. |
The manomeric fluid density should be ______than that of flowing fluid. |
| A. | greater |
| B. | smaller |
| C. | equal |
| D. | very small |
| Answer» B. smaller | |
| 1974. |
One pascal is equivalent to _______ of force applied over an area of one meter squared. |
| A. | one newton |
| B. | 100 newton |
| C. | 1000 newton |
| D. | 10 newton |
| Answer» B. 100 newton | |
| 1975. |
Which of the following statements about vacuum gauges are correct?Statement 1: Thermal vacuum gauges sense the cooling effect of a heated filament.Statement 2: Thermal vacuum gauges designed to measure high pressures. |
| A. | True, False |
| B. | True, True |
| C. | False, True |
| D. | False, False |
| Answer» B. True, True | |
| 1976. |
Which of the following statements about pressure transmitters are correct?Statement 1: It contains pressure sensor and signal conditioner.Statement 2:There are four main types of pressure transmitters. |
| A. | True, False |
| B. | True, True |
| C. | False, True |
| D. | False, False |
| Answer» C. False, True | |
| 1977. |
Which instrument uses the change in electric resistance to measure the pressure? |
| A. | Bourdon tube pressure gauges |
| B. | Barometric sensor |
| C. | Piezoelectric pressure sensor |
| D. | Piezoresistive pressure sensor |
| Answer» E. | |
| 1978. |
_____________ measure dynamic pressure. |
| A. | Bourdon tube pressure gauges |
| B. | Barometric sensor |
| C. | Piezoelectric pressure sensor |
| D. | Piezoresistive pressure sensor |
| Answer» D. Piezoresistive pressure sensor | |
| 1979. |
Which pressure instrument is used inweather networks? |
| A. | Bourdon tube pressure gauges |
| B. | Barometric sensor |
| C. | Piezoelectric pressure sensor |
| D. | Piezoresistive pressure sensor |
| Answer» C. Piezoelectric pressure sensor | |
| 1980. |
Which instrument is used to measure medium pressure? |
| A. | Bourdon tube pressure gauges |
| B. | Barometric sensor |
| C. | Piezoelectric pressure sensor |
| D. | Piezoresistive pressure sensor |
| Answer» B. Barometric sensor | |
| 1981. |
Manometer is used for measuring __________ |
| A. | pressure |
| B. | speed |
| C. | Fathometer |
| D. | density |
| Answer» B. speed | |
| 1982. |
What is the thickness of the MoS2 film? |
| A. | 10µm |
| B. | 15µm |
| C. | 5µm |
| D. | 20µm |
| Answer» C. 5µm | |
| 1983. |
What is the range of coefficient of friction for solid lubricants? |
| A. | 0.005-0.01 |
| B. | 0.001-0.01 |
| C. | 0.0001-0.001 |
| D. | 0.0005-0.001 |
| Answer» B. 0.001-0.01 | |
| 1984. |
The lubricant should have __________ vapor pressure. |
| A. | High |
| B. | Extreme |
| C. | Moderate |
| D. | Low |
| Answer» E. | |
| 1985. |
If melting point increases, then the atomic bonds will _________ |
| A. | Become strong |
| B. | Become weak |
| C. | Be destroyed |
| D. | Be with moderate strength |
| Answer» D. Be with moderate strength | |
| 1986. |
Mobility of the solid lubricants on the adsorbents promotes ___________ |
| A. | Self-healing |
| B. | Maintain the molecular structure |
| C. | Ineffectiveness |
| D. | Effectiveness |
| Answer» B. Maintain the molecular structure | |
| 1987. |
Soaps are prepared by chemical treating of _________ by strong alkaline solutions. |
| A. | Oils and salts |
| B. | Oils and fats |
| C. | Salts and fats |
| D. | Fats and proteins |
| Answer» C. Salts and fats | |
| 1988. |
The molecular structure of the organic lubricants consists of ____________ |
| A. | pyramidal |
| B. | tetrahedral |
| C. | trigonal planar |
| D. | long chain |
| Answer» E. | |
| 1989. |
Which of the following correctly defines the yield of oxygen by the no. of photons absorbed? |
| A. | Emerson enhancement effect |
| B. | Quantum requirement |
| C. | Photochemical reaction |
| D. | Quantum Yield |
| Answer» E. | |
| 1990. |
What is red drop phenomenon? |
| A. | Falling of red color in the spectrum |
| B. | Drop in quantum yield in the red region of the spectrum |
| C. | Drop in quantum yield in the far-red region of the spectrum |
| D. | Falling of far-red color in the spectrum |
| Answer» D. Falling of far-red color in the spectrum | |
| 1991. |
Water is used as an electron donor in anoxygenic photosynthesis. |
| A. | True |
| B. | False |
| Answer» C. | |
| 1992. |
Name the filamentous fungi which are used in Engelmann’s experiment to show photosynthetic activity? |
| A. | Rhizopus stolonifer |
| B. | Penicillium |
| C. | Cyanobacteria |
| D. | Spirogyra |
| Answer» E. | |
| 1993. |
What is the absorption spectrum? |
| A. | The graph produced by absorption of light |
| B. | The graph shows the photochemical reaction |
| C. | The graph produced by absorption of oxygen |
| D. | The graph shows oxygen evolution at a different wavelength |
| Answer» B. The graph shows the photochemical reaction | |
| 1994. |
Fast needle method is more accurate than the loose needle method. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 1995. |
In traversing by fast needle method, the magnetic bearings of the lines are measured with a reference so the direction of magnetic meridian established at the ______ station. |
| A. | first |
| B. | second |
| C. | third |
| D. | each station |
| Answer» B. second | |
| 1996. |
In Compass traversing length of lines are measured by _______ |
| A. | Chain |
| B. | Compass |
| C. | Theodolite |
| D. | Dumpy level |
| Answer» B. Compass | |
| 1997. |
In chain and compass trans versing, the magnetic bearings of the survey lines are measured by a __________ |
| A. | chain |
| B. | compass |
| C. | theodolite |
| D. | dumpy level |
| Answer» B. compass | |
| 1998. |
Continuous spectrum granting beacon is a spectrum sensing technique. |
| A. | True |
| B. | False |
| Answer» C. | |
| 1999. |
____ routing involves broadcasting ____ for routing. |
| A. | Proactive, search packets |
| B. | Reactive, search packets |
| C. | Proactive, routing table |
| D. | Reactive, routing table |
| Answer» C. Proactive, routing table | |
| 2000. |
Cognitive radio requires ____ to interpret multiple rules and policies simultaneously. |
| A. | interpretation capability |
| B. | intuitive capability |
| C. | interference capability |
| D. | inference capability |
| Answer» E. | |