MCQOPTIONS
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MCQOPTIONS
This section includes 2242 Mcqs, each offering curated multiple-choice questions to sharpen your Php knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Forced response consists of _________ |
| A. | Homogenous solution and general solution |
| B. | General solution alone |
| C. | Homogenous solution and particular solution |
| D. | Particular solution alone |
| Answer» D. Particular solution alone | |
| 2. |
The resolution function is needed to resolve the value of _______ |
| A. | z |
| B. | y |
| C. | x |
| D. | No x, y and zView Answer |
| Answer» E. | |
| 3. |
The driver(s) of signal y is _________ |
| A. | z |
| B. | x |
| C. | x and z |
| D. | 1View Answer |
| Answer» B. x | |
| 4. |
Refer to the code given below, what kind of circuit is designed? |
| A. | Buffer |
| B. | Latch |
| C. | Flip flop |
| D. | Shift RegisterView Answer |
| Answer» D. Shift RegisterView Answer | |
| 5. |
Which of the following circuit can’t be described without using a process statement? |
| A. | Multiplexer |
| B. | D flip-flop |
| C. | Decoder |
| D. | Comparator |
| Answer» C. Decoder | |
| 6. |
There is no restriction on the number of wait statements inside a process. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 7. |
A combinational process must have all the _________ signals in its sensitivity list. |
| A. | Input |
| B. | Output |
| C. | Declared |
| D. | Used |
| Answer» B. Output | |
| 8. |
The value of y is initially 1 and it is changed after one delta cycle to 0. How many delta cycles (starting from the beginning) will be taken to change the initial value of z, refer to the process given below? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4View Answer |
| Answer» C. 3 | |
| 9. |
Which of the following signal cause the process to execute? |
| A. | input |
| B. | y |
| C. | clr |
| D. | xView Answer |
| Answer» D. xView Answer | |
| 10. |
Which of the following statement can’t be used inside a process? |
| A. | WAIT |
| B. | IF ELSE |
| C. | Variable declaration |
| D. | PORT MAP |
| Answer» E. | |
| 11. |
It is possible to use sensitivity list and wait statements in the same process. |
| A. | True |
| B. | False |
| Answer» C. | |
| 12. |
How many times is the function recursive_binary_search() called when the following code is executed? |
| A. | 0 |
| B. | 1 |
| C. | 2 |
| D. | 3View Answer |
| Answer» D. 3View Answer | |
| 13. |
In which of the below cases will the following code produce a wrong output? |
| A. | Array: {0,0,0,0,0,0} Search: -10 |
| B. | Array: {1,2,3,4,5} Search: 0 |
| C. | Array: {5,4,3,2,1} Search: 1 |
| D. | Array: {-5,-4,-3,-2,-1} Search: -1View Answer |
| Answer» D. Array: {-5,-4,-3,-2,-1} Search: -1View Answer | |
| 14. |
Consider the following recursive implementation of the binary search: Which of the following lines should be added to complete the above code? |
| A. | hi = mid – 1 |
| B. | mid = (lo + hi)/2 |
| C. | mid = lo – 1 |
| D. | lo = mid + 1View Answer |
| Answer» E. | |
| 15. |
Calculate the value of Vpeak if crest factor=47 and Vr.m.s=6 V. |
| A. | 282 V |
| B. | 300 V |
| C. | 290 V |
| D. | 286 V |
| Answer» B. 300 V | |
| 16. |
When maximum power loss occurs? |
| A. | Rise time |
| B. | Delay time |
| C. | Spread time |
| D. | Rise time or Delay time |
| Answer» B. Delay time | |
| 17. |
A snubber circuit is used with thyristor in ____________ |
| A. | Parallel |
| B. | Series |
| C. | Anti-parallel |
| D. | Series or Parallel |
| Answer» B. Series | |
| 18. |
Which of the following is used to protect SCR from d(v)/d(t) condition? |
| A. | Capacitor |
| B. | Fuse |
| C. | Snubber circuit |
| D. | Inductor |
| Answer» D. Inductor | |
| 19. |
Which of the following is used to protect SCR from d(i)/d(t) condition? |
| A. | Inductor |
| B. | Capacitor |
| C. | Heat sink |
| D. | Fuse |
| Answer» B. Capacitor | |
| 20. |
Which of the following is used to protect SCR from thermal conditions? |
| A. | Heat sink |
| B. | Voltage clamping device |
| C. | Zener diode |
| D. | Snubber circuit |
| Answer» B. Voltage clamping device | |
| 21. |
Which of the following is used to protect SCR from overcurrent? |
| A. | Heat sink |
| B. | Fuse |
| C. | Snubber circuit |
| D. | Zener diode |
| Answer» C. Snubber circuit | |
| 22. |
If latching current of an SCR is 10 mA then its holding current should be ____________ |
| A. | 5 mA |
| B. | 7 mA |
| C. | 8 mA |
| D. | 4 mA |
| Answer» B. 7 mA | |
| 23. |
If holding current of an SCR is 6 mA then its latching current should be ___________ |
| A. | 4 mA |
| B. | 5 mA |
| C. | 12 mA |
| D. | 6 mA |
| Answer» D. 6 mA | |
| 24. |
Holding current of the SCR is ___________ |
| A. | > than latching current |
| B. | < than latching current |
| C. | = to latching current |
| D. | ≥ than latching current |
| Answer» C. = to latching current | |
| 25. |
SCR is a __________ device. |
| A. | Uncontrolled |
| B. | Semi-controlled |
| C. | Fully controlled |
| D. | Voltage |
| Answer» C. Fully controlled | |
| 26. |
For successful commutation circuit turn-off time ______ device turn-off time. |
| A. | < |
| B. | > |
| C. | = |
| D. | ~ |
| Answer» C. = | |
| 27. |
Calculate the value of safety factor using the data: tc=12 msec, tq=6 msec. |
| A. | 4 |
| B. | 2 |
| C. | 3 |
| D. | 6 |
| Answer» C. 3 | |
| 28. |
SCR is a current controlled device. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 29. |
The value of latching current is more than holding current. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 30. |
If set A X B=B X A then which of the following sets may satisfy? |
| A. | A={1, 2, 3}, B={1, 2, 3, 4} |
| B. | A={1, 2}, B={2, 1} |
| C. | A={1, 2, 3}, B={2, 3, 4} |
| D. | None of the mentioned |
| Answer» C. A={1, 2, 3}, B={2, 3, 4} | |
| 31. |
If set A and B have 3 and 4 elements respectively then the number of subsets of set (A X B) is? |
| A. | 1024 |
| B. | 2048 |
| C. | 512 |
| D. | 4096 |
| Answer» E. | |
| 32. |
If A ⊆ B then A X C ⊆ B X C the given statement is true or false. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 33. |
Let the sets be A, B, C, D then (A ∩ B) X (C ∩ D) is equivalent to __________ |
| A. | (A X C) ∩ (B X D) |
| B. | (A X D) U (B X C) |
| C. | (A X C) U ( B X D) |
| D. | None of the mentioned |
| Answer» B. (A X D) U (B X C) | |
| 34. |
If C = {1} then C X (C X C) = (C X C) X C the given statement is true or false. |
| A. | True |
| B. | False |
| Answer» C. | |
| 35. |
Which of the following statements regarding sets is false?a) A X B = B X Ab) A X B ≠ B X Ac) n(A X B) = n( |
| A. | A X B = B X A |
| B. | A X B ≠ B X A |
| C. | n(A X B) = n(A) * n(B) |
| D. | All of the mentioned |
| Answer» B. A X B ≠ B X A | |
| 36. |
If set A has 3 elements then number of elements in A X A X A are __________ |
| A. | 9 |
| B. | 27 |
| C. | 6 |
| D. | 19 |
| Answer» C. 6 | |
| 37. |
If set A has 4 elements and B has 3 elements then set n(A X B) is? |
| A. | 12 |
| B. | 14 |
| C. | 24 |
| D. | 7 |
| Answer» B. 14 | |
| 38. |
Let set A = {1, 2} and C be {3, 4} then A X B (Cartesian product of set A and B) is? |
| A. | {1, 2, 3, 4} |
| B. | {(1, 3),(2, 4)} |
| C. | {(1, 3), (2, 4), (1, 4), (2, 3)} |
| D. | {(3, 1), (4, 1)} |
| Answer» D. {(3, 1), (4, 1)} | |
| 39. |
A T-test sample has 7 pairs of samples. The distribution should contain ____________ |
| A. | 16 degrees of freedom |
| B. | 15 degrees of freedom |
| C. | 5 degrees of freedom |
| D. | 6 degrees of freedom |
| Answer» E. | |
| 40. |
The independent values in a set of values of a test is called as? |
| A. | Degrees of freedom |
| B. | Test Statistic |
| C. | Level of Significance |
| D. | Level of Confidence |
| Answer» B. Test Statistic | |
| 41. |
Which of the following represents the Confidence coefficient? |
| A. | 1-α |
| B. | β |
| C. | 1-β |
| D. | α |
| Answer» B. β | |
| 42. |
A paired T test consists of n pairs of observations. What is the number of degrees of freedom of the test? |
| A. | 2n-1 |
| B. | 2n |
| C. | n-1 |
| D. | n |
| Answer» D. n | |
| 43. |
The composite hypothesis holds true when? |
| A. | ϕ > ϕ0 |
| B. | ϕ < ϕ0 |
| C. | ϕ = ϕ0 |
| D. | ϕ >> ϕ0 |
| Answer» D. ϕ >> ϕ0 | |
| 44. |
The effect of rejection of a hypothesis with decrease in sample size ____________ |
| A. | decreases |
| B. | increases |
| C. | remains constant |
| D. | fluctuates |
| Answer» C. remains constant | |
| 45. |
The range of Level of Significance lies between ____________ |
| A. | -∞ and 0 |
| B. | -∞ and ∞ |
| C. | 0 and ∞ |
| D. | 0 and 1 |
| Answer» E. | |
| 46. |
The Test Statistic for a Hypothesis testing is given by the formula ____________ |
| A. | Sample-Population/Standard Error |
| B. | Sample statistic-Parameter/Standard Errorc) Sample mean-Population mean/Population standard deviationd) Statistic-E(statisti |
| C. | Sample mean-Population mean/Population standard deviation |
| D. | Statistic-E(statistic)/Variance |
| Answer» C. Sample mean-Population mean/Population standard deviation | |
| 47. |
If a Null Hypothesis is accepted then the value of Test statistic lies in the ____________ |
| A. | Acceptance region |
| B. | Rejection region |
| C. | Critical region |
| D. | Sample region |
| Answer» B. Rejection region | |
| 48. |
Consider a trial of a criminal. If a type 1 error has occurred in thee judgement then which of the following statement is true? |
| A. | a guilty person is set free |
| B. | an innocent person is convicted |
| C. | a guilty person is convicted |
| D. | an innocent person is set free |
| Answer» C. a guilty person is convicted | |
| 49. |
A Null Hypothesis has Level of Significance 9%. For what values of Level of Significances it will be rejected? |
| A. | 0.99 |
| B. | 0.009 |
| C. | 0.099 |
| D. | 0.9 |
| Answer» C. 0.099 | |
| 50. |
In a hypothesis test, what does the p value signify? |
| A. | smallest level of significance for rejection of Null Hypothesis |
| B. | largest level of significance for rejection of Null Hypothesis |
| C. | smallest level of significance for acceptance of Null Hypothesis |
| D. | smallest level of significance for acceptance of Null Hypothesis |
| Answer» B. largest level of significance for rejection of Null Hypothesis | |