Basic Electronics and Electrical Engineering MCQs TT-1 (March 2021)

Post by : Sachin Dabhade ( Data Science )

       As the name says in Basic Electronics and Electrical Engineering subject, we clear the basic concept in the field of engineering electronics. As we know that, it is a vast subject for electrical student although it is also important for the other stream students. So make sure that your basic concept of this is build that can help you in upcoming years. Here are some of the MCQs problems for you to practice the basics of BEEE ( Basic Electronic and Electrical Engineering ).

 Basic Electronic and Electrical Engineering 

RCPIT Examination, Shirpur.

Type 1: Multiple Choice Question - 1 Marks

1.Nodal analysis is mainly based on __________ 

    A) KCL 

    B) KVL 

    C) Wheatstone bridge principle 

    D) Faraday’s electric laws 

Ans: Option A

2. A supernode is between _____________ 

    A) Essential node and reference node 

    B) Two reference nodes 

    C) Two essential nodes 

    D) Essential node and neutral path 

Ans: Option C

3. The loop which does not contain any other inner loop is known as _____________ 

    A) A node 

    B) A mesh 

    C) A branch 

    D) A super mesh 

Ans: Option B

4. A Super Mesh analysis could be done when there is a common _____________ between any two loops. 

    A) Voltage source 

    B) Current source 

    C) Resistor 

    D) Both voltage and current source 

Ans: Option B

5. Mesh analysis is best suitable for _____________ 

    A) Current sources 

    B) Voltage sources 

    C) Complex elements 

    D) Unilateral elements 

Ans: Option A

6. Which method is best for voltage sources? 

    A) Mesh analysis 

    B) Nodal analysis 

    C) Superposition principle 

    D) Differentiation method 

Ans: Option B

7. When there is a current source between two loops which method is preferred? 

    A) Mesh-voltage analysis 

    B) Node-current analysis 

    C) Supermesh 

    D) Supernode 

Ans: Option C

8. When there is a voltage source between two nodes which method is preferred? 

    A) Mesh-voltage analysis 

    B) Node-current analysis 

    C) Supermesh 

    D) Supernode 

Ans: Option D

9. By using source transformation voltage source in a series resistor is replaced by __________ 

    A) Voltage source in series with a resistor 

    B) Current source in parallel with a resistor 

    C) Voltage source in parallel with a resistor 

    D) Current source in series with a resistor 

Ans: Option B

10. If there are two resistors in parallel and in series with a voltage source then ___________ 

    A) Parallel resistor has no effect 

    B) Series resistor has no effect 

    C) Both has their respective effects 

    D) Both has no effect on the voltage source 

Ans: Option A

11. If there is a 12A current source in series with 2Ω and in parallel with a 4Ω resistor, then voltage V=? 

    A) 24V 

    B) 48V 

    C) 3V 

    D) 6V 

Ans: Option B

12. Source transformation technique is mainly based on __________ law. 

    A) Newton’s 

    B) Kirchhoff’s 

    C) Ohm’s 

    D) Einstein’s 

Ans: Option C

13. In source transformation, 

    A) Voltage sources remain same 

    B) Current sources remain same 

    C) Both voltage and current sources undergo change 

    D) Resistances/Impedances remain same 

Ans: Option D

14. If there are five 20V voltage sources in parallel, then in source transformation __________ 

    A) All are considered 

    B) Only one is considered 

    C) All are ignored 

    D) Only 2 are considered 

Ans: Option B

15. Thevenin’s equivalent circuit consists of a ____________ 

    A) Voltage source in series with a resistor 

    B) Current source in parallel with a resistor 

    C) Voltage source in parallel with a resistor 

    D) Current source in series with a resistor 

Ans: Option A

16. Thevenin’s voltage is equal to ____________ 

    A) Short circuit voltage 

    B) Open circuit current 

    C) Open circuit voltage 

    D) Short circuit current 

Ans: Option C

17. Thevenin’s resistance RTh = ___________ 

    A) VTh/ISC 

    B) VSC/ITh 

    C) VTh/ITh 

    D) VSC /ISC 

Ans: Option A

18. What is the expression forthe thevenin’s current if there is an external resistance in series with the RTh? 

    A) VTh/ITh 

    B) VTh/ (RTh-R) 

    C) VTh/ (RTh+R) 

    D) VTh/RTh 

Ans: Option C

19. Dependent sources are _____________ types. 

    A) 3 

    B) 2 

    C) 4 

    D) 1 

Ans: Option C

20. In case of a dependent voltage/current source, the value of this voltage/current source depends on _________ 

    A) Voltage/current sources of an external circuit 

    B) Voltage/current source present somewhere in the circuit 

    C) Only on voltage sources 

    D) Only on current sources 

Ans: Option B

21. The value of the current controlled voltage source ,given β=0.8 and ia=9.5mA, is ___________ 

    A) 8mV 

    B) 7.6mV 

    C) 0.0011mV 

    D) 0.0051mV 

Ans: Option B

22. What is the other name for Dependent sources? 

    A) Uncontrolled sources 

    B) Time response elements 

    C) Steady state elements 

    D) Controlled sources 

Ans: Option D

23. The symbol used for representing Independent sources 

    A) Diamond 

    B) Square 

    C) Circle 

    D) Triangle 

Ans: Option C

24. Controlled sources are also known as 

    A) Independent sources 

    B) Dependent sources 

    C) Ideal sources 

    D) Voltage sources 

Ans: Option A

25. Which of the following characteristics is/are attributed to an ideal independent voltage source? 

    A) both ‘b’ and ‘d’. 

    B) Independent of magnitude of current supplied.. 

    C) Independent of the magnitude of voltage supplied. 

    D) Independent of the direction of flow of current. 

Ans: Option A

26. Dependent source of current and voltage are those which have 

    A) unidirectional characteristic. 

    B) output dependent on input. 

    C) independent of any other network variable. 

    D) all of the above. 

Ans: Option B

27. The internal resistance of a practical voltage source is considered to be connected in 

    A) series. 

    B) parallel. 

    C) either parallel or series. 

    D) none of the above. 

Ans: Option A

28. Source is a basic network element which supplies power to the networks. 

    A) True 

    B) False 

Ans: Option A

29. The dependent sources are of _____________ kinds. 

    A) 5 

    B) 2 

    C) 3 

    D) 4 

Ans: Option D

30. The constant gm has dimension of ___________ 

    A) Ampere per volt 

    B) Ampere 

    C) Volt 

    D) Volt per ampere 

Ans: Option A

31. In CCVS, voltage depends on the control current and the constant called __________ 

    A) Transconductance 

    B) Transresistance 

    C) Current Gain 

    D) Voltage Gain 

Ans: Option B

32. Every circuit is a network, but all networks are not circuits. 

    A) True 

    B) False 

Ans: Option A

33. Which of the following is not an example of a linear element? 

    A) Resistor 

    B) Thermistor 

    C) Inductor 

    D) Capacitor 

Ans: Option B

34. In case of ideal current sources, they have ___________ 

    A) zero internal resistance 

    B) low value of voltage 

    C) large value of currrent 

    D) infinite internal resistance 

Ans: Option D

35. A practical current source can also be represented as ___________ 

    A) a resistance in parallel with an ideal voltage source 

    B) a resistance in parallel with an ideal current source 

    C) a resistance in series with an ideal current source 

    D) none of the mentioned 

Ans: Option B

36. A practical voltage source can also be represented as ___________ 

    A) a resistance in series with an ideal current source 

    B) a resistance in series with an ideal voltage source 

    C) a resistance in parallel with an ideal voltage source 

    D) none of the mentioned 

Ans: Option B

37. Constant voltage source is ___________ 

    A) active and bilateral 

    B) passive and bilateral 

    C) active and unilateral 

    D) passive and unilateral 

Ans: Option C

38. Which of the following is true about an ideal voltage source? 

    A) zero resistance 

    B) small emf 

    C) large emf 

    D) infinite resistance 

Ans: Option A

39. dependent source ___________ 

    A) may be a current source or a voltage source 

    B) is always a voltage source 

    C) is always a current source 

    D) none of the mentioned.. 

Ans: Option A

40. dependent source ___________ 

    A) may be a current source or a voltage source 

    B) is always a voltage source 

    C) is always a current source 

    D) none of the mentioned 

Ans: Option A

41. Mesh analysis is applicable for non planar networks also. 

    A) true 

    B) false 

Ans: Option B

42. A mesh is a loop which contains ____ number of loops within it. 

    A) 1 

    B) 2 

    C) 3 

    D) no loop 

Ans: Option D

43. If there are 5 branches and 4 nodes in graph, then the number of mesh equations that can be formed are? 

    A) 2 

    B) 4 

    C) 6 

    D) 8 

Ans: Option A

44. Source transformation technique is mainly based on __________ law. 

    a) Newton’s 

    b) Kirchhoff’s 

    c) Ohm’s 

    d) Einstein’s 

Ans: Option C

45. By using source transformation voltage source in series resistor is replaced by __________ 

    a) Voltage source in series with a resistor 

    b) Current source in parallel with a resistor 

    c) Voltage source in parallel with a resistor 

    d) Current source in series with a resistor 

Ans: Option B

46. Source Transformation is _____________ 

    a) Unilateral 

    b) Unique 

    c) Bilateral 

    d) Complicated 

Ans: Option C

47. If there are two resistors in parallel and in series with a voltage source then ___________ 

    a) Parallel resistor has no effect 

    b) Series resistor has no effect 

    c) Both has their respective effects 

    d) Both has no effect on the voltage source 

Ans: Option A

48. If there is a 12A current source in series with 2Ω and in parallel with a 4Ω resistor, then voltage V=? 

    a) 24V 

    b) 48V 

    c) 3V 

    d) 6V 

Ans: Option B

49. Source transformation can be used for dependent sources. 

    a) True 

    b) False 

Ans: Option A

50. Source transformation can be used for dependent sources. 

    a) True 

    b) False 

Ans: Option A

51. In source transformation, 

    a) Voltage sources remain same 

    b) Current sources remain same 

    c) Both voltage and current sources undergo change 

    d) Resistances/Impedances remain same 

Ans: Option D

52. If there are five 20V voltage sources in parallel, then in source transformation __________ 

    a) All are considered 

    b) Only one is considered 

    c) All are ignored 

    d) Only 2 are considered 

Ans: Option B

53. Thevenin’s equivalent circuit consists of a ____________ 

    a) Voltage source in series with a resistor 

    b) Current source in parallel with a resistor 

    c) Voltage source in parallel with a resistor 

    d) Current source in series with a resistor 

Ans: Option A

54. Thevenin’s voltage is equal to ____________ 

    a) Short circuit voltage 

    b) Open circuit current 

    c) Open circuit voltage 

    d) Short circuit current 

Ans: Option C

55.One can find the thevenin’s resistance simply by removing all voltage/current sources and calculating equivalent resistance. 

    a) False 

    b) True 

Ans: Option B

56. Delta connection is also known as____________ 

    a) Y-connection 

    b) Mesh connection 

    c) Either Y-connection or mesh connection 

    d) Neither Y-connection nor mesh connection 

Ans: Option B

57. Star connection is also known as__________ 

    a) Y-connection 

    b) Mesh connection 

    c) Either Y-connection or mesh connection 

    d) Neither Y-connection nor mesh connection 

Ans: Option A

58. Thevenin’s resistance RTh = ___________ 

    a) VTh/ISC 

    b) VSC/ITh 

    c) VTh/ITh 

    d) VSC /ISC 

Ans: Option A

59.What is the expression forthe thevenin’s current if there is an external resistance in series with the RTh? 

    a) VTh/ITh 

    b) VTh/ (RTh-R) 

    c) VTh/ (RTh+R) 

    d) VTh/RTh 

Ans: Option C

60. If there is a 12A current source in series with 2Ω and in parallel with a 2Ω resistor, then voltage V=? 

    a) 24V 

    b) 48V 

    c) 3V 

    d) 6V 

Ans: Option A

61. If there is a 12A current source in series with 2Ω and in parallel with a 3Ω resistor, then voltage V=? 

    a) 24V 

    b) 48V 

    c) 36V 

    d) 6V 

Ans: Option C

62. If there is a 12A current source in series with 2Ω and in parallel with a 1Ω resistor, then voltage V=? 

    a) 24V 

    b) 48V 

    c) 36V 

    d) 12V 

Ans: Option D   

 

63. If there is a 10A current source in series with 2Ω and in parallel with a 3Ω resistor, then voltage V=? 

    a) 24V 

    b) 48V 

    c) 36V 

    d) 30V 

Ans: Option D

64. Thevenin’s voltage is equal to ____________ 

    A) Short circuit voltage 

    B) Open circuit current 

    C) Open circuit voltage 

    D) Short circuit current 

Ans: Option C

65. Thevenin’s resistance RTh = ___________ 

    A) VTh/ISC 

    B) VSC/ITh 

    C) VTh/ITh 

    D) VSC /ISC 

Ans: Option A

66. What is the expression forthe thevenin’s current if there is an external resistance in series with the RTh? 

    A) VTh/ITh 

    B) VTh/ (RTh-R) 

    C) VTh/ (RTh+R) 

    D) VTh/RTh 

Ans: Option C

67. Dependent sources are _____________ types. 

    A) 3 

    B) 2     

    C) 4 

    D) 1 

Ans: Option C

    

68. In case of a dependent voltage/current source, the value of this voltage/current source depends on _________ 

    A) Voltage/current sources of an external circuit 

    B) Voltage/current source present somewhere in the circuit 

    C) Only on voltage sources 

    D) Only on current sources

Ans: Option B 

69. The value of the current controlled voltage source ,given β=0.8 and ia=9.5mA, is ___________ 

    A) 8mV 

    B) 7.6mV 

    C) 0.0011mV 

    D) 0.0051mV 

Ans: Option B

70. Source is a basic network element which supplies power to the networks. 

    A) True 

    B) False 

Ans: Option B

    

71. The dependent sources are of _____________ kinds. 

    A) 5 

    B) 2 

    C) 3 

    D) 4 

Ans: Option D

72. The constant gm has dimension of ___________ 

    A) Ampere per volt 

    B) Ampere 

    C) Volt 

    D) Volt per ampere 

Ans: Option A

73. In CCVS, voltage depends on the control current and the constant called __________ 

    A) Transconductance 

    B) Transresistance 

    C) Current Gain 

    D) Voltage Gain 

Ans: Option B

74. Every circuit is a network, but all networks are not circuits. 

    A) True 

    B) False 

Ans: Option A

75. Which of the following is not an example of a linear element? 

    A) Resistor 

    B) Thermistor 

    C) Inductor 

    D) Capacitor 

Ans: Option B

76. In case of ideal current sources, they have ___________ 

    A) zero internal resistance 

    B) low value of voltage 

    C) large value of currrent 

    D) infinite internal resistance 

Ans: Option D

77. A practical current source can also be represented as ___________ 

    A) a resistance in parallel with an ideal voltage source 

    B) a resistance in parallel with an ideal current source 

    C) a resistance in series with an ideal current source 

    D) none of the mentioned 

Ans: Option B

78. A practical voltage source can also be represented as ___________ 

    A) a resistance in series with an ideal current source 

    B) a resistance in series with an ideal voltage source 

    C) a resistance in parallel with an ideal voltage source 

    D) none of the mentioned 

Ans: Option B

79. voltage source is ___________ 

    A) active and bilateral 

    B) passive and bilateral 

    C) active and unilateral 

    D) passive and unilateral 

Ans: Option C

80. Which of the following is true about an ideal voltage source? 

    A) zero resistance     

    B) small emf 

    C) large emf 

    D) infinite resistance 

Ans: Option A

81. dependent source ___________ 

    A) may be a current source or a voltage source 

    B) is always a voltage source 

    C) is always a current source 

    D) none of the mentioned.. 

Ans: Option A

82. dependent source ___________ 

    A) may be a current source or a voltage source

    B) is always a voltage source

    C) is always a current source 

    D) none of the mentioned 

Ans: Option A

83. Mesh analysis is applicable for non planar networks also. 

    A) true 

    B) false 

Ans: Option B

84. A mesh is a loop which contains ____ number of loops within it. 

    A) 1 

    B) 2 

    C) 3 

    D) no loop 

Ans: Option D

85. If there are 5 branches and 4 nodes in graph then the number of mesh equations that can be formed are? 

    A) 2 

    B) 4     

    C) 6 

    D) 8 

Ans: Option A

86. Ideal current source have 

    A) Zero internal resistance 

    B) Infinite internal resistance 

    C) Low value of voltage 

    D) Large value of current 

Ans: Option B

88. Ideal current source have 

    A) Zero internal resistance 

    B) Infinite internal resistance 

    C) Low value of voltage 

    D) Large value of current 

Ans: Option B

89. Ideal voltage source have 

    A) Zero internal resistance 

    B) Infinite internal resistance 

    C) Low value of current 

    D) Large value of e.m.f. 

Ans: Option A

90. If there are 6 branches and 4 essential nodes how many equations are required to describe a circuit in mesh-current method? 

    A) 3 

    B) 6 

    C) 4 

    D) 2

Ans: Option A

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