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Explain in detail about list and array with all function in kotlin

Explain in detail about list and array with all functions in kotlin In Kotlin, lists and arrays are fundamental collections used to store ordered sequences of elements. They provide different functionalities and usage patterns. Here is a detailed explanation of both lists and arrays in Kotlin, including their functions and usage. Lists in Kotlin A list is an ordered collection of elements. Lists can be either mutable or immutable. The main distinction is that mutable lists can be modified (elements can be added, removed, or changed), while immutable lists cannot be modified after they are created. Immutable Lists Immutable lists are created using the listOf function.    val immutableList = listOf(1, 2, 3, 4, 5) Mutable Lists Mutable lists are created using the mutableListOf function    val mutableList = mutableListOf(1, 2, 3, 4, 5) Common List Functions 1-Accessing Elements: get(index: Int): Returns the element at the specified index. first(): Returns the first elem...
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Digital Electronics MCQ Questions

Digital Electronics MCQ Questions 

1. The Base of radix of a binary number is.

  1. 2
  2. 3
  3. 4

2. A nibble represents.

  1. Three bits
  2. Four bits
  3. Five bits
  4. Two bit

3. A bytes represents

  1. 7 bits
  2.  8 bits
  3.  6 bits
  4. 9 bits

4.Digits used in binary number system are

  1. 0 and 1
  2. 3 and 4
  3. 1 and 2
  4. 0 and 2

5. The base of a decimal number system is

  1. 8
  2. 9
  3. 10
  4. 11

6. Distinct digits used in decimal number system is.

  1. 1 to 7
  2. 0 to 8
  3. 0 to 9
  4. 0 to 10

7. The base of hexadecimal number system is.

  1. 15
  2. 16
  3. 14
  4. 17

8. Distinct digits used in hexadecimal number system are.

  1. 0 to 9 and A to G
  2. 0 to 8 and A to F
  3. 0 to 9 and A to F
  4. 0 to 9 and A to F

9. A single digit in binary number system is called.

  1. Bit
  2. Base 
  3. nibble
  4. Bright

10. How many bytes are there in the binary number 1110000111001100.

  1. 3 nibble
  2. 2 nibble
  3. 8 nibble
  4. 4 nibble

12. A BCD code number express each digit as a.

  1. Byte
  2. Bit
  3. Nibble
  4. None
13. The decimal equivalent of BCD number 0 01 1,  1 0 0 0,  0 1 1 1 is
  1. 386
  2. 387
  3. 486
  4. 487

14. The BCD code for decimal number 67 is?

  1. 0110 1001
  2. 0101 0111
  3. 0101 0110
  4. 0110 0111

15. The binary equivalent of grey code 1011 is?

  1. 1110
  2. 1111
  3. 1101
  4. 1001

16. Number of parity bits required for forming hamming code for a 6 bit message is?

  1. 2
  2. 3
  3. 4
  4. None

17. Excess 3 code for decimal number 95 is ?

  1. 1001 0101
  2. 1001 1000
  3. 0101 1001
  4. 1100 1000

18. the NOT gate performs a function known as ?

  1. Complementation
  2. Inversion
  3. Assertion
  4. Both (1) and (2)

19. When the applied input to a NOT gate is hight , the outputs is ?

  1. High or 1
  2. Low or 0
  3. High or 0
  4. Low or 1

20. Which logic circuit has a Memory?

  1. Combination logic circuit
  2. Sequential logic circuit
  3. Both
  4. None

21. An OR gate has 5 inputs . How many inputs combination are there  in its truth table ?

  1. 64
  2. 32
  3. 16
  4. 128

22. The output of AND gate is high when the applied inputs are A B and C?

  1. A=1,B=0,C=1
  2. A=1,B=1,C=1
  3. A=0,B=1,C=1
  4. A=1,B=1,C=0

23. The output of or gate is high when is applied input are A B C.

  1. A=1 ,B=1,C=1
  2. A=0,B=0,C=0
  3. A=0,B=1,C=0
  4. Both(1) and (3)

24. From and AND gate.

  1. Output is high if and only if all inputs are high
  2. All low input produce high output
  3. Output is low if and only if all inputs are high
  4. Both(1)and(3)

25. The output of a gate is low when at least one of its input is 1. this is true for?

  1. NAND
  2. AND
  3. NOR
  4. OR

26. The output of a gate is 0 when atleast one of its input is 1. This is true for?

  1. AND
  2. NAND
  3. NOR
  4. OR

27. The output of gate is 1 if and only if all its input are 0. This is true for?

  1. XOR 
  2. AND
  3. NOR
  4. XNOR

28. Which of the following gates  can be used as an inverter?

  1. AND
  2. NAND
  3. OR
  4. None of the above

29. The most suitable gate used in the comparator circuit is ?

  1. AND
  2. NOR
  3. XOR
  4. NAND

30. The output of a two input gate is low if and only if its input are equal?

  1. XOR
  2. NAND
  3. NOR
  4. AND

31. The output of a two input gate is high if and only if its input are unequal . This is true for ?

  1. OR
  2. XOR
  3. XNOR
  4. NAND

32. The output of 2 input gate is height when both the input are of same value. this is true for?

  1. XOR
  2. NAND
  3. XNOR
  4. NOR

33. which of the following gate cannot be used as an inverter

  1. NAND
  2. NOR
  3. XOR
  4. AND

34. Draw output of a gate is high when all the input are low. this is true for

  1. AND
  2. NAND
  3. OR
  4. NOR

35. Which gate is know as universal gate

  1. AND
  2. NAND
  3. XOR
  4. XNOR

36. Which logic family is the fastest

  1. RTL
  2. DTL
  3. ECL
  4. TTL

37. In VLSI technique the number of gates fabricated on a single chip are?

  1. 100
  2. 999
  3. 9999
  4. None

38. According to associative law of multiplication?

  1. A+B=B+A
  2. A(BC)=(AB)C
  3. C=CC
  4. None

39. According to community law of addition?

  1. ABC=(AB)C
  2. B=B+B
  3. A+B=B+A
  4. None

40. In a Boolean algebra X+1=..........?

  1. 0
  2. X
  3. 1
  4. None

41. Which equation show a SOP expression?

  1. AB+BC+A
  2. A+B(C+D)
  3. (A+B)(C+D)
  4. None

42. Which expression show a POS expression?

  1. AB+CD+BC
  2. (A+B+C)(C+D)
  3. A(B+C)+D
  4. None

43. How many cells are there in a 3 variable k map?

  1. Eight cells
  2. Three cells
  3. Seven cells
  4. Five cells

44. How many cells are there in a 4 variable k map?

  1. 16 cells
  2. Four cells
  3. Eight cells
  4. Five cells

45. On a k map grouping of 1's produces?

  1. SOP expression
  2. POS expression
  3. AND-OR logic
  4. None

46. On a k map grouping of 0's produces?

  1. SOP expression
  2. POS expression
  3. AND-OR logic
  4. None

47. In a 4 variable k map, the grouping of eight 1's reduced of expression?

  1. Four variables
  2. Two variables
  3. Three variables
  4. None

48. A half adder is characterized by?

  1. Three inputs and two outputs
  2. Two inputs and two outputs
  3. Two inputs and one outputs
  4. Two inputs and three outputs 

49. A full adder is characterized by?

  1. Three inputs and three outputs
  2. Three inputs and four outputs
  3. Three inputs and two output
  4. None

50. The inputs to full adder are A=1, B=1 and C=1. The output are?

  1. S=1, C0=1
  2. S=0, C0=1
  3. S=1, C0=0
  4. None

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