MCQOPTIONS
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MCQOPTIONS
This section includes 166 Mcqs, each offering curated multiple-choice questions to sharpen your Electrical Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Full form of BEL is |
| A. | busy electronics limited |
| B. | burden electrical limited |
| C. | bharat electronics limited |
| D. | brahma electrical limited |
| Answer» D. brahma electrical limited | |
| 2. |
Full form of CEL is |
| A. | central electronics limited |
| B. | central electrical limited |
| C. | circle electronics limited |
| D. | circle electrical limited |
| Answer» B. central electrical limited | |
| 3. |
Calculate the active power in a 11710 H inductor. |
| A. | 8245 w |
| B. | 1781 w |
| C. | 0 w |
| D. | 1964 w |
| Answer» D. 1964 w | |
| 4. |
The slope of the V-I curve of a solar cell is 66.1°. Calculate the value of resistance. Assume the relationship between voltage and current is a straight line. |
| A. | 3.5 Ω |
| B. | 2.2 Ω |
| C. | 2.5 Ω |
| D. | 2.9 Ω |
| Answer» C. 2.5 Ω | |
| 5. |
SCIM has a |
| A. | shorter life |
| B. | medium life |
| C. | longer life |
| D. | infinite life |
| Answer» D. infinite life | |
| 6. |
Calculate the line voltage in star connection when phase voltage=311 V. |
| A. | 548.29 v |
| B. | 538.66 v |
| C. | 587.28 v |
| D. | 185.58 v |
| Answer» C. 587.28 v | |
| 7. |
Series and parallel combination of the solar cell is known as |
| A. | solar array |
| B. | solar light |
| C. | solar sight |
| D. | solar eye |
| Answer» B. solar light | |
| 8. |
Calculate Fill factor using the data: Pmax=15 W, Voc=18 V, Isc=4 A. |
| A. | .65 |
| B. | .59 |
| C. | .20 |
| D. | .98 |
| Answer» D. .98 | |
| 9. |
In the parlance of system design, the active transfer process is referred to as “push” and server is called |
| A. | cdn |
| B. | mda |
| C. | mdb |
| D. | none of the mentioned |
| Answer» C. mdb | |
| 10. |
The IRC protocol and the XMPP IM and VoIP protocol are examples of push technologies. |
| A. | p2p |
| B. | c2c |
| C. | b2b |
| D. | none of the mentioned |
| Answer» B. c2c | |
| 11. |
Which of the following has a Java API that works with the Skyhook network? |
| A. | looki |
| B. | look |
| C. | loki |
| D. | all of the mentioned |
| Answer» D. all of the mentioned | |
| 12. |
Which of the following service is an example of push technology? |
| A. | automated software updates |
| B. | comet |
| C. | http streaming |
| D. | all of the mentioned |
| Answer» E. | |
| 13. |
Which of the following system is constantly polling locations to update them and recalibrating data points to improve accuracy over time? |
| A. | wps |
| B. | gps |
| C. | xps |
| D. | all of the mentioned |
| Answer» D. all of the mentioned | |
| 14. |
Wireless operates services are based on a Wi-Fi Positioning System (WPS). |
| A. | skydrive |
| B. | skyhook |
| C. | skylook |
| D. | none of the mentioned |
| Answer» C. skylook | |
| 15. |
Which of the following is the abbreviation of SIMS? |
| A. | secondary ion mass spectroscopy |
| B. | spectrum ionization mass spectroscopy |
| C. | scattering ions mass spectroscopy |
| D. | spectral ionization mass spectroscopy |
| Answer» B. spectrum ionization mass spectroscopy | |
| 16. |
Which of the following methods use soft X- rays to eject electrons from inner shell orbitals? |
| A. | auger electron spectroscopy |
| B. | electron impact spectroscopy |
| C. | electron spectroscopy for chemical analysis |
| D. | secondary ion mass spectroscopy |
| Answer» D. secondary ion mass spectroscopy | |
| 17. |
Which of the following is also known as X- ray photoelectron spectroscopy? |
| A. | auger electron spectroscopy |
| B. | electron impact spectroscopy |
| C. | electron spectroscopy for chemical analysis |
| D. | secondary ion mass spectroscopy |
| Answer» D. secondary ion mass spectroscopy | |
| 18. |
Surface is usually more than atomic layer deep and is a region of atomic potentials. |
| A. | one, uniform |
| B. | one, non-uniform |
| C. | two, uniform |
| D. | two, non-uniform |
| Answer» C. two, uniform | |
| 19. |
Shadow casting is a technique of visualizing |
| A. | isolated particles |
| B. | mounts |
| C. | shoot tips |
| D. | root tips |
| Answer» B. mounts | |
| 20. |
In TEM, the tissue is stained by floating on drops of |
| A. | hydrocarbons |
| B. | slow-molecular weight stains |
| C. | heavy metal soutions |
| D. | oil immersion |
| Answer» D. oil immersion | |
| 21. |
Glutaraldehyde is a |
| A. | metal |
| B. | fixative |
| C. | non-metal |
| D. | atomic species |
| Answer» C. non-metal | |
| 22. |
Osmium is a |
| A. | non metal |
| B. | heavy metal |
| C. | alloy |
| D. | light metal |
| Answer» C. alloy | |
| 23. |
The biological materials have little intrinsic capability to |
| A. | scatter electrons |
| B. | stain |
| C. | remain viable |
| D. | be captured |
| Answer» B. stain | |
| 24. |
Image formation in electron microscope is based on |
| A. | column length |
| B. | electron number |
| C. | differential scattering |
| D. | specimen size |
| Answer» D. specimen size | |
| 25. |
Which of the following component of TEM focuses the beam of electrons on the sample? |
| A. | ocular lens |
| B. | condenser lens |
| C. | stage |
| D. | column |
| Answer» C. stage | |
| 26. |
The resolution attainable with standard TEM is less than the theoretical value. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 27. |
On what factors do the intensity of secondary electrons depend upon? |
| A. | shape of the irradiated object |
| B. | chemical composition of the irradiated object |
| C. | number of electrons ejected |
| D. | size and chemical composition of the irradiated object, number of electrons ejected and on the number of electrons reabsorbed by surrounding |
| Answer» E. | |
| 28. |
Negative Staining is used for examining |
| A. | virus particles |
| B. | protein molecules |
| C. | bacterial flagella |
| D. | virus particles, protein molecules and bacterial flagella |
| Answer» E. | |
| 29. |
Degree of scattering in transmission electron microscope is a function of |
| A. | wavelength of electron beam used |
| B. | number of atoms that lie in the electron path |
| C. | number and mass of atoms that lie in the electron path |
| D. | mass of atoms that lie in the electron path |
| Answer» D. mass of atoms that lie in the electron path | |
| 30. |
A convergent beam is obtained by placing which of the following material between the X- ray source and the sample? |
| A. | soil particles |
| B. | single crystal of carbon |
| C. | linear double crystal of graphite |
| D. | bent single crystal of quartz |
| Answer» E. | |
| 31. |
What is the disadvantage of the Debye- Scherrer film to obtain the d-spacings? |
| A. | temperature required is too high |
| B. | exposure time is long |
| C. | closely spaced arcs are circular |
| D. | cones formed by the diffracted beams are two heavy in weight |
| Answer» C. closely spaced arcs are circular | |
| 32. |
In the powder method of the crystals if the Bragg’s angle is Θ then what is the angle of the cone formed by the diffracted beams? |
| A. | Θ |
| B. | 2Θ |
| C. | 3Θ |
| D. | 4Θ |
| Answer» E. | |
| 33. |
In the powder method, in powder sample various samples are also present in every possible orientation. |
| A. | miller indices |
| B. | lattice |
| C. | unit cell |
| D. | atoms |
| Answer» C. unit cell | |
| 34. |
Fabrics are extensively made out of nano materials like |
| A. | carbon nano tubes |
| B. | fullerenes |
| C. | mega tubes |
| D. | polymers |
| Answer» C. mega tubes | |
| 35. |
By nano scale distribution of the in matrix improves the life and performance. |
| A. | carbide |
| B. | tungsten |
| C. | hydrides |
| D. | nitrites |
| Answer» C. hydrides | |
| 36. |
Due to tensile strength some of the nano materials are used in air crafts. |
| A. | high |
| B. | low |
| C. | moderate |
| D. | no |
| Answer» B. low | |
| 37. |
The extensively used nano particles as catalyst is |
| A. | silver |
| B. | copper |
| C. | gold |
| D. | cerium |
| Answer» D. cerium | |
| 38. |
The to the ceramics are superior coatings. |
| A. | nano particles |
| B. | nano powder |
| C. | nano crystals coating |
| D. | nano gel |
| Answer» D. nano gel | |
| 39. |
of ceramic components are easier through nano structuring. |
| A. | lubrication |
| B. | coating |
| C. | fabrication |
| D. | wear |
| Answer» D. wear | |
| 40. |
Coating the nano crystals with the ceramics is carried that leads to |
| A. | corrosion |
| B. | corrosion resistant |
| C. | wear and tear |
| D. | soft |
| Answer» C. wear and tear | |
| 41. |
The nano particles from iron and palladium are used to produce |
| A. | magnets |
| B. | magnetic lens |
| C. | magneto meters |
| D. | magnetic storage devices |
| Answer» E. | |
| 42. |
is the field in which the nano particles are used with silica coated iron oxide iron oxide. |
| A. | magnetic applications |
| B. | electronics |
| C. | medical diagnosis |
| D. | structural and mechanical materials |
| Answer» D. structural and mechanical materials | |
| 43. |
DNA detection through the by using the oligonucleotide functionalised gold nano crystals is developed. |
| A. | colorimetric |
| B. | diathermy |
| C. | electro therapy |
| D. | treatment tables |
| Answer» B. diathermy | |
| 44. |
The synthesized magnetic nano particles from have been found to self- arrange automatically. |
| A. | zinc |
| B. | copper |
| C. | iron |
| D. | zirconium |
| Answer» D. zirconium | |
| 45. |
For high sensitivity or selectivity environmental sensors to sense the gaseous chemical like |
| A. | co2 |
| B. | no3 |
| C. | o2 |
| D. | no |
| Answer» E. | |
| 46. |
Natural graphite is mostly used in |
| A. | refrigerators |
| B. | laboratories |
| C. | catalyst |
| D. | fuel |
| Answer» B. laboratories | |
| 47. |
Graphite is also called as |
| A. | white lead |
| B. | black lead |
| C. | white coal |
| D. | black coal |
| Answer» C. white coal | |
| 48. |
The graphite is |
| A. | paramagnetic |
| B. | diamagnetic |
| C. | ferromagnetic |
| D. | ferrimagnetic |
| Answer» C. ferromagnetic | |
| 49. |
The graphite undergoes corrosion in stainless steel. |
| A. | microbial corrosion |
| B. | crevice corrosion |
| C. | pitting corrosion |
| D. | high temperature corrosion |
| Answer» D. high temperature corrosion | |
| 50. |
In oxygen containing atmospheres, the graphite readily converted into |
| A. | carbon-monoxide |
| B. | carbondioxide |
| C. | carbonmonosulphide |
| D. | carbon-disulphide |
| Answer» C. carbonmonosulphide | |