MCQOPTIONS
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MCQOPTIONS
This section includes 195 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. |
The variance is |
| A. | 20 |
| B. | 50 |
| C. | 70 |
| D. | 30 |
| Answer» E. | |
| 2. |
The E[X2(t)] is |
| A. | 10 |
| B. | sqrt(10) |
| C. | 50 |
| D. | sqrt(50) |
| Answer» D. sqrt(50) | |
| 3. |
A random process is defined by X(t) + A where A is continuous random variable uniformly distributed on(0,1). The auto correlation function and mean of the process is |
| A. | 1/2 & 1/3 |
| B. | 1/3 & 1/2 |
| C. | 1 & 1/2 |
| D. | 1/2 & 1 |
| Answer» C. 1 & 1/2 | |
| 4. |
A stationary random process X(t) is applied to the input of a system for which h(t) = u(t) t2 e(-8t). If E[X(t)] = 2, the mean value of the system’s response Y(t) is |
| A. | 1/128 |
| B. | 1/64 |
| C. | 3/128 |
| D. | 1/32 |
| Answer» D. 1/32 | |
| 5. |
Air craft of Jet Airways at Ahmedabad airport arrive according to a Poisson process at a rate of 12 per hour. All aircraft are handled by one air traffic controller. If the controller takes a 2 – minute coffee break, what is the probability that he will miss one or more arriving aircraft? |
| A. | 0.33 |
| B. | 0.44 |
| C. | 0.55 |
| D. | 0.66 |
| Answer» B. 0.44 | |
| 6. |
The auto correlation Rxx(t1 = 0.5T, t2 = 0.7T) will bea) 1b) 0c) A x Ad) 0.5 (A x |
| A. | 1 |
| B. | 0 |
| C. | A x A |
| D. | 0.5 (A x A) |
| Answer» D. 0.5 (A x A) | |
| 7. |
White noise with power density No/2 = 6 microW/Hz is applied to an ideal filter of gain 1 and bandwidth W rad/s. If the output’s average noise power is 15 watts, the bandwidth W is |
| A. | 2.5 x 10 (-6) |
| B. | 2.5p x 10 (-6) |
| C. | 5 x 10 (-6) |
| D. | p5 x 10 (-6) |
| Answer» C. 5 x 10 (-6) | |
| 8. |
For random process X = 6 and Rxx (t, t+t) = 36 + 25 exp(|t|). Consider following statements:(i) X(t) is first order stationary.(ii) X(t) has total average power of 36 W.(iii) X(t) is a wide sense stationary.(iv) X(t) has a periodic component.Which of the following is true? |
| A. | 1, 2, and 4 |
| B. | 2, 3, and 4 |
| C. | 2 and 3 |
| D. | only 3 |
| Answer» D. only 3 | |
| 9. |
Dismay:Joy :: Tend:? |
| A. | Regret |
| B. | Ignore |
| C. | Negligible |
| D. | Spoil |
| Answer» C. Negligible | |
| 10. |
How many such pairs of letters are there in the word GOLDEN each of which has as many letters between them in the word as in the English alphabet? |
| A. | One |
| B. | Two |
| C. | Three |
| D. | None |
| Answer» C. Three | |
| 11. |
A one rupee coin is placed on a plain paper. Ho many coins of the same size can be placed around it so that each one touches the central and adjacent coins? |
| A. | 4 |
| B. | 3 |
| C. | 7 |
| D. | 6 |
| Answer» E. | |
| 12. |
A code language in which TEMPORARY is written as EPRSAYOYM and EXCUSE as PGNVXP. How EXEMPT is written in that code? |
| A. | PGPRES |
| B. | PGPRSE |
| C. | PSPRGE |
| D. | PGPSRE |
| Answer» C. PSPRGE | |
| 13. |
ZA, VC, RE, NG, ? , FK |
| A. | OH |
| B. | KI |
| C. | IJ |
| D. | JI |
| Answer» E. | |
| 14. |
If 7+5 = 144 and 3+2 = 25, then 9+7=? |
| A. | 49 |
| B. | 256 |
| C. | 81 |
| D. | 121 |
| Answer» C. 81 | |
| 15. |
6, 9, 18, 36, ?, 216, 660, 2323 |
| A. | 126 |
| B. | 96 |
| C. | 82 |
| D. | 108 |
| Answer» D. 108 | |
| 16. |
Select the related word pair from the given alternatives:_x000D_ Draw : Pencil :: ? : Brush |
| A. | Carve |
| B. | Paint |
| C. | Draw |
| D. | Polish |
| Answer» C. Draw | |
| 17. |
AB 11 CD, EF 13 GH, IJ 17 KL, ? |
| A. | MN 18 OP |
| B. | MN 19 OP |
| C. | MN 21 OP |
| D. | MN 23 OP |
| Answer» C. MN 21 OP | |
| 18. |
APA : EQE :: ? : ? |
| A. | BOB : FGF |
| B. | CDC : GHG |
| C. | LML : NON |
| D. | IRI : OSO |
| Answer» E. | |
| 19. |
Three of the following four are alike in a certain way and so form a group. Which is the one that does not belong the group? |
| A. | March |
| B. | January |
| C. | June |
| D. | May |
| Answer» D. May | |
| 20. |
13, 10, ?, 100, 1003, 1000, 10003 |
| A. | 130 |
| B. | 1030 |
| C. | 1130 |
| D. | 103 |
| Answer» E. | |
| 21. |
9, 62, ?, 1854, 7415, 22244 |
| A. | 309 |
| B. | 406 |
| C. | 371 |
| D. | 433 |
| Answer» D. 433 | |
| 22. |
Six friends M, N, O, P, Q, R are standing in a circle. N is between O and R is standing adjacent to P. Who is between M and R? |
| A. | N |
| B. | O |
| C. | P |
| D. | Q |
| Answer» E. | |
| 23. |
If WOOD is coded as 23|225|4 then MEET is |
| A. | 13|5|5|20 |
| B. | 13|10|20 |
| C. | 13|25|20 |
| D. | None of these |
| Answer» D. None of these | |
| 24. |
In a certain code ORGANISE is written as BHSPDRHM. How is DOUBTFUL written in that code? |
| A. | CVPEKTES |
| B. | CVPIMVGU |
| C. | ATNCKTES |
| D. | ATNCMVGU |
| Answer» B. CVPIMVGU | |
| 25. |
4, 9, 19, ?, 79, 159, 319 |
| A. | 59 |
| B. | 39 |
| C. | 49 |
| D. | 69 |
| Answer» C. 49 | |
| 26. |
M is older than R. Q is younger than R and N. N is not as old as M. Who among M, N, R and Q is the oldest? |
| A. | R |
| B. | M |
| C. | M or R |
| D. | None of these |
| Answer» C. M or R | |
| 27. |
If ALTERED is written as ZOGVIVW, how would you write the word RELATED in the same code? |
| A. | VIOGZVW |
| B. | IVOZGWV |
| C. | VOIZGVW |
| D. | IVOZGVW |
| Answer» E. | |
| 28. |
If 8 + 12 = 2, 7 + 14 = 3 then 10 + 18 = ? |
| A. | 10 |
| B. | 4 |
| C. | 6 |
| D. | 18 |
| Answer» B. 4 | |
| 29. |
The piece of equipment, that introduces DNA into cells via DNA-coated microprojectiles is known as |
| A. | DNA probe |
| B. | laser |
| C. | inoculating needle |
| D. | gene gun |
| Answer» E. | |
| 30. |
A was born 5 yrs before B, B is 4 yrs older than C and 3 yrs younger to D. If A is now 17 yrs old, how old is D? |
| A. | 19 yrs |
| B. | 15 yrs |
| C. | 12 yrs |
| D. | 8 yrs |
| Answer» C. 12 yrs | |
| 31. |
If FOCUS: GPDVT, then LOTUS: |
| A. | MPUVT |
| B. | MQUVT |
| C. | MQRSV |
| D. | SUTOL |
| Answer» B. MQUVT | |
| 32. |
In a certain code GATHER is written as UBHQDG. How is DESIGN written in that code? |
| A. | EFTMFH |
| B. | TFEHFM |
| C. | TFEMFH |
| D. | TFEOHJ |
| Answer» D. TFEOHJ | |
| 33. |
Some equations are solved on the basis of a certain system. Find the correct answer for the unsolved equation on that basis._x000D_ 1 x 3 x 5 = 531_x000D_ 2 x 7 x 9 = 972_x000D_ 4 x 6 x 8 = ? |
| A. | 846 |
| B. | 468 |
| C. | 864 |
| D. | 684 |
| Answer» D. 684 | |
| 34. |
4 3 2_x000D_ 36 2 100 7 ? 5 |
| A. | 71 |
| B. | 49 |
| C. | 64 |
| D. | 81 |
| Answer» C. 64 | |
| 35. |
Electroporation is |
| A. | the process of combining foreign DNA to an electrically charged vector molecule |
| B. | the process of separating charged molecules through a gel maintained in an electric field |
| C. | the process of multiplication of the cells |
| D. | the application of high voltage pulses |
| Answer» E. | |
| 36. |
There are five boys S, K, M, A and R. S is shorter than K but taller than R. M is the tallest. A is little shorter than K and a little taller than S:_x000D_ If they stand is order of increasing heights, then who is at the second position? |
| A. | K |
| B. | M |
| C. | S |
| D. | R |
| Answer» D. R | |
| 37. |
CG : EI :: FJ : ? |
| A. | GK |
| B. | GH |
| C. | HL |
| D. | IJ |
| Answer» D. IJ | |
| 38. |
If NATION is coded as 467234, and EARN id coded as 1654, then ATTENTION should be coded as |
| A. | 432769561 |
| B. | 956143654 |
| C. | 766412743 |
| D. | 677147234 |
| Answer» D. 677147234 | |
| 39. |
Hari starts from his house and walks 200 metres East and then goes North for 80 metres, then West for 40 metres and finally South for 80 metres. He stops here. How far is he from his house? |
| A. | 100m |
| B. | 150m |
| C. | 160m |
| D. | 80m |
| Answer» D. 80m | |
| 40. |
BEAN is related to NEAB and SAID is related to DAIS in the same way as LIME is related to - |
| A. | MLEI |
| B. | ELMI |
| C. | EIML |
| D. | EILM |
| Answer» D. EILM | |
| 41. |
CDF, DEG, EFH, ? |
| A. | FHG |
| B. | EFI |
| C. | FGH |
| D. | FGI |
| Answer» E. | |
| 42. |
Harmeet walked 30 meters towards East, took a right turn and walked 20 meters, again took a right turn and walked 30 meters. How far was he from the starting point? |
| A. | 80 meters |
| B. | 30 meters |
| C. | 50 meters |
| D. | 20 meters |
| Answer» E. | |
| 43. |
8, 12, 18, 26, 40.5, 60.75, ?, 136.6875 |
| A. | 104.125 |
| B. | 121.125 |
| C. | 96.125 |
| D. | 91.125 |
| Answer» E. | |
| 44. |
4, 18, 48, 100, 180, 294, ? |
| A. | 416 |
| B. | 480 |
| C. | 512 |
| D. | 448 |
| Answer» E. | |
| 45. |
Find out the wrong number: 5, 348, 564, 689, 723, 780, 788 |
| A. | 788 |
| B. | 348 |
| C. | 723 |
| D. | 689 |
| Answer» D. 689 | |
| 46. |
Insert the missing numbers in these question._x000D_ 15 (92) 31_x000D_ 25 (?) 26 |
| A. | 101 |
| B. | 112 |
| C. | 107 |
| D. | 102 |
| Answer» E. | |
| 47. |
P 3 C, R 5 P, T 8 I, V 12 L, ? |
| A. | X 16 O |
| B. | X 17 M |
| C. | X 17 O |
| D. | X 17 O |
| Answer» D. X 17 O | |
| 48. |
What is related LAPSE in the same way as SESSION is related to CONCLUDE? |
| A. | Agency |
| B. | Policy |
| C. | Permit |
| D. | Leave |
| Answer» C. Permit | |
| 49. |
Which of the following will be the middle digit of the second lowest number among the five number given_x000D_ 317 528 439 254 861 |
| A. | 5 |
| B. | 3 |
| C. | 1 |
| D. | 6 |
| Answer» D. 6 | |
| 50. |
Sagar introduced Mohan as nephew of the only brother-in-law of his grandmother's only son. How is Sagar related to Mohan? |
| A. | Cousin |
| B. | Brother |
| C. | Maternal Uncle |
| D. | Son |
| Answer» B. Brother | |