MCQOPTIONS
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MCQOPTIONS
This section includes 570 Mcqs, each offering curated multiple-choice questions to sharpen your Electronic Devices Circuits knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following represents the correct mathematical form of the term denoted by the symbol Rp? |
| A. | ß/gm |
| B. | Vt/Ib |
| C. | All of the mentioned |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 2. |
The SI units of transconductance is |
| A. | Ampere/ volt |
| B. | Volt/ ampere |
| C. | Ohm |
| D. | Siemens |
| Answer» B. Volt/ ampere | |
| 3. |
A designer wishes to create a BJT amplifier with a gm of 50 mA/V and a base input resistance of 2000 O or more. What is the minimum ß he can tolerate for the transistor used? |
| A. | 100 |
| B. | 150 |
| C. | 200 |
| D. | 250 |
| Answer» B. 150 | |
| 4. |
A transistor operating with nominal gm of 60 mA/V has a ß that ranges from 50 to 200. Also, the bias circuit, being less than ideal, allows a 20% variation in Ic. What is the largest value found of the resistance looking into the base? |
| A. | 1050 ohm |
| B. | 21000 ohm |
| C. | 3150 ohm |
| D. | 4200 ohm |
| Answer» E. | |
| 5. |
A transistor operating with nominal gm of 60 mA/V has a ß that ranges from 50 to 200. Also, the bias circuit, being less than ideal, allows a 20% variation in Ic. What is the smallest value found of the resistance looking into the base? |
| A. | 347 ohm |
| B. | 694 ohm |
| C. | 1041 ohm |
| D. | 1388 ohm |
| Answer» C. 1041 ohm | |
| 6. |
A transistor with ß = 120 is biased to operate at a dc collector current of 1.2 mA. Find the value of Re. |
| A. | 2.5 ohm |
| B. | 20.6 ohm |
| C. | 25.2 ohm |
| D. | 30.4 ohm |
| Answer» C. 25.2 ohm | |
| 7. |
A transistor with ß = 120 is biased to operate at a dc collector current of 1.2 mA. Find the value of R?p. |
| A. | 625 ohm |
| B. | 1250 ohm |
| C. | 2500 ohm |
| D. | 5000 ohm |
| Answer» D. 5000 ohm | |
| 8. |
A transistor with ß = 120 is biased to operate at a dc collector current of 1.2 mA. Find the value of gm. |
| A. | 12mA/V |
| B. | 24 mA/V |
| C. | 36 mA/V |
| D. | 48 mA/V |
| Answer» E. | |
| 9. |
Maternal mortality rate is - |
| A. | Maternal death/1000 births |
| B. | Maternal death/1000 live births |
| C. | Maternal death/100 births |
| D. | Maternal death/100 live births |
| Answer» C. Maternal death/100 births | |
| 10. |
The surface temperature of planet Uranus is |
| A. | (-175 degree celsius) |
| B. | (-185 degree celsius) |
| C. | (-197 degree celsius) |
| D. | (-165 degree celsius) |
| Answer» D. (-165 degree celsius) | |
| 11. |
The first man made craft Venera 3 was launched in |
| A. | 1986 |
| B. | 1966 |
| C. | 1991 |
| D. | 1981 |
| Answer» C. 1991 | |
| 12. |
Considering facts about Uranus, the time Uranus takes to complete one orbit around its own axis is |
| A. | 17 hours, 14 minutes |
| B. | 22 hours, 25 minutes |
| C. | 15 hours, 20 minutes |
| D. | 20 hours, 18 minutes |
| Answer» B. 22 hours, 25 minutes | |
| 13. |
The types of spoilage includes |
| A. | normal spoilage |
| B. | abnormal spoilage |
| C. | weighted spoilage |
| D. | both a and b |
| Answer» E. | |
| 14. |
All are indicators of faecal pollution of water, except - |
| A. | E. coli |
| B. | Streptococcal fecalis |
| C. | Clostridium welchii |
| D. | Clostridium botulinium |
| Answer» E. | |
| 15. |
In Kuiper Belt, the objects such as Pluto, Make-make, Ixion and Haumea are also known as |
| A. | Trans-Neptune Objects |
| B. | Trans-Venus Objects |
| C. | Trans-Saturn Objects |
| D. | Trans-Pluto Objects |
| Answer» B. Trans-Venus Objects | |
| 16. |
Maradona is a Famous Football Player of Which Country? |
| A. | Argentina |
| B. | Brazil |
| C. | Spain |
| D. | Italy |
| Answer» B. Brazil | |
| 17. |
Considering facts about Venus, the planet Venus is also known as |
| A. | Evening star |
| B. | Morning star |
| C. | both a and b |
| D. | Afternoon star |
| Answer» D. Afternoon star | |
| 18. |
In month of December, the winter season is marked on the |
| A. | east of equator |
| B. | west of equator |
| C. | north of equator |
| D. | south of equator |
| Answer» D. south of equator | |
| 19. |
Haber process for the manufacturing of ammonia requires catalyst of |
| A. | iron |
| B. | vanadium oxide |
| C. | nickel |
| D. | platinum |
| Answer» B. vanadium oxide | |
| 20. |
Aqueous sulphuric acid contains |
| A. | hydro oxide ions |
| B. | Hydrogen ions |
| C. | all of these |
| D. | sulphate ions |
| Answer» D. sulphate ions | |
| 21. |
The autumnal equinox occurs in the month of September marks the start of |
| A. | summer |
| B. | spring |
| C. | autumn |
| D. | winter |
| Answer» D. winter | |
| 22. |
The orbit distance of planet Uranus is |
| A. | 19.22 AU |
| B. | 20.22 AU |
| C. | 23.22 AU |
| D. | 15.22 AU |
| Answer» B. 20.22 AU | |
| 23. |
In mammals, the types of transferring information |
| A. | are two |
| B. | is one |
| C. | are more than 3 |
| D. | are three |
| Answer» B. is one | |
| 24. |
The distance of Andromeda from Milky Way galaxy is |
| A. | 3.5 million light years |
| B. | 2.5 million light years |
| C. | 5.5 million light years |
| D. | 4.5 million light years |
| Answer» C. 5.5 million light years | |
| 25. |
Considering facts about solar system, the two outermost planets Uranus and Neptune are also known as |
| A. | ice giants |
| B. | water giants |
| C. | gas giants |
| D. | copper giants |
| Answer» B. water giants | |
| 26. |
Considering facts about solar system, the two most largest planets Jupiter and Saturn are also known as |
| A. | water giants |
| B. | copper giants |
| C. | gas giants |
| D. | ice giants |
| Answer» D. ice giants | |
| 27. |
Which of the following transfers a set of genes encoded in a region called T-DNA of the Ti-plasmid into cells at wound positions? |
| A. | L. peruvianum |
| B. | tumefaciens |
| C. | sterilis |
| D. | L. birsutum |
| Answer» C. sterilis | |
| 28. |
Random amplified polymorphic DNA (RAPD) is a method that |
| A. | activate the expression of all genes in a biochemical pathway |
| B. | stimulate production of sense RNA to compensate |
| C. | reveals intra-specific variation and diversity between species |
| D. | eliminate the expression of all genes in a biochemical pathway |
| Answer» D. eliminate the expression of all genes in a biochemical pathway | |
| 29. |
The belt in space which is home to known dwarf planets such as Pluto and Make-make is classified as |
| A. | Pallas Belt |
| B. | Meteorite Belt |
| C. | Asteroid Belt |
| D. | Kuiper Belt |
| Answer» E. | |
| 30. |
Considering facts about Neptune, the planet Neptune is also known as |
| A. | sand giant |
| B. | storm giant |
| C. | ice giant |
| D. | gas giant |
| Answer» E. | |
| 31. |
Considering facts about Uranus, the orbit period of planet Uranus is |
| A. | 80.02 Earth years |
| B. | 76.02 Earth years |
| C. | 86.02 Earth years |
| D. | 84.02 Earth years |
| Answer» E. | |
| 32. |
Considering facts about Mars, the period of orbit of planet Mars in terms of Earth days is |
| A. | 586.98 |
| B. | 486.98 |
| C. | 646.86 |
| D. | 686.98 |
| Answer» E. | |
| 33. |
Glucose is an example of |
| A. | pentose |
| B. | triose |
| C. | sucrose |
| D. | hexose |
| Answer» E. | |
| 34. |
The terrestrial planet Mars thin atmosphere is composed of |
| A. | carbon dioxide |
| B. | helium |
| C. | ethane |
| D. | nitrogen |
| Answer» B. helium | |
| 35. |
Which type of perspective view represents an adult viewer looking at an object on the ground? |
| A. | worm's eye view |
| B. | bird's eye view |
| C. | ground's eye view |
| D. | human's eye view |
| Answer» E. | |
| 36. |
The second bright object in sky during night after Moon is |
| A. | Earth |
| B. | Mercury |
| C. | Mars |
| D. | Venus |
| Answer» E. | |
| 37. |
The known number of moons of planet Saturn are |
| A. | 58 |
| B. | 43 |
| C. | 62 |
| D. | 67 |
| Answer» D. 67 | |
| 38. |
'Sanitation barrier' implies: |
| A. | Elemination of flies |
| B. | Water pollution |
| C. | Segregation of faeces |
| D. | Personal hygiene |
| Answer» D. Personal hygiene | |
| 39. |
Viruses do not cause |
| A. | small pox |
| B. | Acquired Immune Deficiency Syndrome (HIV/AIDS) |
| C. | malaria |
| D. | measles |
| Answer» D. measles | |
| 40. |
The orbit distance (in astronomical units) of planet Saturn is |
| A. | 12.58 |
| B. | 11.58 |
| C. | 10.58 |
| D. | 9.58 |
| Answer» E. | |
| 41. |
The partial or completed units of manufactured goods that does not meet customer specifications and are sold at reduced price or simply discarded are called |
| A. | spoilage |
| B. | rework |
| C. | scrap |
| D. | equivalence |
| Answer» B. rework | |
| 42. |
Considering facts about Neptune, the largest storm seen on planet Neptune is known as |
| A. | Great Dark Spot |
| B. | Great White spot |
| C. | Great Blue spot |
| D. | Great Green spot |
| Answer» B. Great White spot | |
| 43. |
Considering facts about Sun, the diameter of the Sun is |
| A. | 1,458,249 km |
| B. | 1,556,684 km |
| C. | 2,392,684 km |
| D. | 1,392,684 km |
| Answer» E. | |
| 44. |
Number of live birth per 1000 women in productive age group is ? |
| A. | TFR |
| B. | GFR |
| C. | NRR |
| D. | GRR |
| Answer» C. NRR | |
| 45. |
The white dwarf collapse into |
| A. | neutron star |
| B. | neuron star |
| C. | comet star |
| D. | proton star |
| Answer» B. neuron star | |
| 46. |
The known rings of planet Saturn are |
| A. | more than 30 |
| B. | less than 20 |
| C. | less than 30 |
| D. | more than 40 |
| Answer» B. less than 20 | |
| 47. |
Which of the following property(ies), shown by the organisms belong(s) to the family Enterobacteriaceae? |
| A. | They are oxidase-negative |
| B. | They are catalase-positive |
| C. | All of these |
| D. | They ferment glucose |
| Answer» D. They ferment glucose | |
| 48. |
Considering facts about Neptune, the polar diameter of planet Neptune is |
| A. | 48,682 km |
| B. | 63,682 km |
| C. | 59,682 km |
| D. | 54,682 km |
| Answer» B. 63,682 km | |
| 49. |
Considering facts about solar system, the planets such as Jupiter, Saturn, Uranus and Neptune are classified as |
| A. | giant planets |
| B. | terrestrial planets |
| C. | Alpha Centauri planets |
| D. | proximal planets |
| Answer» B. terrestrial planets | |
| 50. |
Mean and standard deviation can be worked out only if data is on - |
| A. | Interval/Ratio scale |
| B. | Dichotomous scale |
| C. | Nominal scale |
| D. | Ordinal scale |
| Answer» B. Dichotomous scale | |