NTA UGC NET/JRF Exam, June -2020 (Electronic Science)

Total Questions: 100

71. Match List-I with List-II

List-I (Interrupt)List-II (ROM location (Hex.))
(a) Reset(i) 001B
(b) External hardware int. 0 (INT0)(ii) 0003
(c) Timer 0 interrupt (TF0)(iii) 000B
(d) Timer 1 interrupt (TF1)(iv) 0000

Choose the correct answer from the options given below:

(a)(b)(c)(d)
A.(iv)(ii)(iii)(i)
B.(iv)(iii)(ii)(i)
C.(iii)(ii)(iv)(i)
D.(i)(ii)(iii)(iv)
Correct Answer: A.

72. Match List-I with List-II

List-IList-II
(a) Klystron(i) Slow structure
(b) Transfer Electron devices(ii) Bunching
(c) MESFET(iii) Warm electrons
(d) Travelling wave tube(iv) Pinch - off

Choose the correct answer from the options given below:

(a)(b)(c)(d)
A.(ii)(iii)(iv)(i)
B.(i)(iii)(ii)(iv)
C.(iii)(ii)(i)(iv)
D.(iv)(iii)(ii)(i)
Correct Answer: A.

73. Match List-I with List-II

List-IList-II
(a) DPSK(i) Non coherent detector
(b) AM(ii) Ratio detector
(c) FM(iii) Coherent detector
(d) DSB- SC(iv) Rectifier detector

Choose the correct answer from the options given below:

(a)(b)(c)(d)
A.(i)(iv)(ii)(iii)
B.(iii)(i)(iv)(ii)
C.(ii)(iii)(i)(iv)
D.(iv)(ii)(iii)(i)
Correct Answer: A.

74. Match List-I with List-II

Choose the correct answer from the options given below:

(a)(b)(c)(d)
A.(i)(iii)(iv)(ii)
B.(ii)(iii)(iv)(i)
C.(iv)(iii)(ii)(i)
D.(iii)(iv)(i)(ii)
Correct Answer: C.

75. Match List-I with List-II

List-IList-II
(Symbol)(Value)
(a) da(i)  10⁻¹⁵
(b) d(ii)  10⁻¹ 
(c) f(iii) 10⁻¹⁸
(d) a(iv)  10 

Choose the correct answer from the options given below:

(a)(b)(c)(d)
A.(iv)(ii)(i)(iii)
B.(ii)(iv)(i)(iii)
C.(i)(ii)(iii)(iv)
D.(iv)(ii)(iii)(i)
Correct Answer: A.

76. Arrange the following semiconductor

(a) ZnSe
(b) InAs
(c) CdTe
(d) Ge
(e) InP
Choose the correct answer from the options given below:

Correct Answer: D. (a), (c), (e), (d), (b)

77. The sequence of first to last step involved in a typical silicon gate n - MOS transistor is:

(a) Gate oxidation
(b) Contact cuts
(c) Patterning SiO₂ layer
(d) Implant or diffusion
(e) Patterning of aluminium layer
Choose the correct answer from the options given below:

Correct Answer: C. (c), (a), (d), (b), (e)

78. Arrange the Nyquist sampling interval of the signal in descending order:

(a) sin c (300t)
(b) sin c (300t) + sin c² (300t)
(c) sin c (200t)
(d) sin c (200r) + sin c² (200t)
(e) sin c (200t) + sin с (500t)
Choose the correct answer from the options given below:

Correct Answer: C. (c), (a), (d), (e), (b)

79. Compare the output signal swing of the following power amplifiers:

(a) Class A
(b) Class B
(c) Class AB
(d) Class C
Choose the correct answer from the options given below:

Correct Answer: D. (a) > (c) > (b) > (d)

80. For designing a sequential circuit, the following steps are used as general methodology:

(a) State Assignment and transition table
(b) State diagram
(c) State table
(d) Realization
(e) k-maps and minimal expressions The sequence of these steps in order of their execution is:
Choose the correct answer from the options given below:

Correct Answer: D. (b), (c), (a), (e), (d)