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61
IB JIO Grade-2 Tech 2023 part-2: 25
Q.25 If SNRi is the input SNR of a system in dB, SNRo is the output SNR of a system in dB, then which of the below defines the noise figure (NF) in $\mathrm{dB}$ ... ID : 6306801082352 Option 2 ID : 6306801082349 Option 3 ID : 6306801082351 Option 4 ID : 6306801082350 Status : Answered Chosen Option : $\mathbf{1}$
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IB JIO Grade-2 Tech 2023 part-2: 26
Q.26 Which statement is FALSE about open loop system? Ans 1. An open loop system is economical and simple in construction. 2. An open loop system is not preferred due to inaccuracy and unreliability. 3. An open loop uses unity feedback ... Option 2 ID : 6306801082164 Option 3 ID : 6306801082163 Option 4 ID : 6306801082161 Status : Answered Chosen Option : 2
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IB JIO Grade-2 Tech 2023 part-2: 27
Q.27 In a digital communication system, let the encoding scheme be "Add 1 at the end of the bit stream if number of 1 bits is odd, else add 0 at the end of bit stream". If 1011 is the bit stream, which of the ... : 6306801082303 Option 2 ID : 6306801082301 Option 3 ID : 6306801082302 Option 4 ID : 6306801082304 Status : Not Answered Chosen Option : --
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IB JIO Grade-2 Tech 2023 part-2: 28
Q.28 Which statement is FALSE for analog input module for PLCs? Ans 1. The resolution of an analog input is higher, indicates less accuracy. 2. Temperature, Pressure are example of analog input signals for PLC. 3. A Single channel module can ... 2 ID : 6306801082183 Option 3 ID : 6306801082184 Option 4 ID : 6306801082181 Status : Not Answered Chosen Option : --
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IB JIO Grade-2 Tech 2023 part-2: 29
Q.29 Ignoring quantization noise and considering only channel noise in pulse coded modulation system, if signal-to-noise ratio is $10 \mathrm{~dB}$, noise power is $2 \mathrm{~dB}$, then what is the signal power in $\mathrm{dB}$ ... Option 2 ID : 6306801082316 Option 3 ID : 6306801082314 Option 4 ID : 6306801082315 Status : Not Answered Chosen Option : --
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IB JIO Grade-2 Tech 2023 part-2: 30
Q.30 The precision is composed of which of the following two characteristics? Ans 1. Error and Noise figure. 2. Conformity and Significant figure. 3. Significant figure and Noise figure. 4. Conformity and Noise figure. Question ID : ... Option 2 ID : 6306801082238 Option 3 ID : 6306801082239 Option 4 ID : 6306801082237 Status : Answered Chosen Option : 3
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IB JIO Grade-2 Tech 2023 part-2: 31
Q.31 Which of one the below options are the two different types of bus topology? Ans 1. Linear bus topology and distributed bus topology 2. Linear bus topology and circular bus topology 3. Linear bus topology and semi - circular bus ... Option 2 ID : 6306801082344 Option 3 ID : 6306801082342 Option 4 ID : 6306801082343 Status : Answered Chosen Option : 1
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IB JIO Grade-2 Tech 2023 part-2: 32
Q.32 Consider the following statement regarding Kelvin Double Bridge. Statement (1): It is used for measuring resistance in the range of few ohms to several mega ohm. Statement (2): It provides high accuracy in the measurement of low resistance ... 2 ID : 6306801082250 Option 3 ID : 6306801082252 Option 4 ID : 6306801082249 Status : Not Answered Chosen Option :--
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IB JIO Grade-2 Tech 2023 part-2: 33
Q.33 Consider the following statement regarding DIAC. Statement (1): DIAC is unidirectional device. Statement (2): DIAC can be used for triggering TRIAC. Statement (3): DIAC can be used as an AC switch. Which statement is/are true. Ans ... Option 2 ID : 6306801082120 Option 3 ID : 6306801082118 Option 4 ID : 6306801082119 Status : Not Answered Chosen Option : --
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IB JIO Grade-2 Tech 2023 part-2: 34
Q.34 Maximum Power transfer occurs when the Ans 1. Load voltage and current are one-half of their maximum values. 2. Load voltage and current are equal. 3. Load voltage and current are two-third of their maximum values. 4. Load ... 6306801082226 Option 2 ID : 6306801082225 Option 3 ID : 6306801082228 Option 4 ID : 6306801082227 Status : Answered Chosen Option : 4
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IB JIO Grade-2 Tech 2023 part-2: 35
Q.35 Which of the following method is specifically designed to allow a network analyst to monitor traffic? Ans 1. Switch monitoring 2. Forward chaining 3. Port mirroring 4. Firewall Question ID : 630680278540 Option 1 ID : 6306801082446 Option 2 ID : 6306801082445 Option 3 ID : 6306801082447 Option 4 ID : 6306801082448 Status : Answered Chosen Option : 1
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IB JIO Grade-2 Tech 2023 part-2: 36
Q.36 Which statement is FALSE regarding Zener diode? Ans 1. The probability of tunnelling increases as depletion layer is increased. 2. Zener diode is used in application of voltage regulation. 3. The breakdown in Zener diode is due to ... ID : 6306801082134 Option 3 ID : 6306801082133 Option 4 ID : 6306801082135 Status : Not Answered Chosen Option : --
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IB JIO Grade-2 Tech 2023 part-2: 37
Q.37 Which statement is TRUE regarding Norton theorem? Ans 1. It consists of voltage source in parallel with resistance. 2. It consists of current source in parallel with resistance. 3. It consists of current source in series with resistance. ... 2 ID : 6306801082231 Option 3 ID : 6306801082232 Option 4 ID : 6306801082230 Status : Not Answered Chosen Option : --
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IB JIO Grade-2 Tech 2023 part-2: 38
Q.38 Which statement is TRUE regarding SCR Thyristor? Ans 1. Silicon Controlled Rectifier is two terminal, three layered device. 2. Silicon Controlled Reconstructor is three layered device. 3. Silicon Controlled Rectifier is three terminal, four ... : 6306801082122 Option 3 ID : 6306801082123 Option 4 ID : 6306801082124 Status : Not Answered Chosen Option : --
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IB JIO Grade-2 Tech 2023 part-2: 39
Q.39 If receiver noise floor is $2 \mathrm{~dB}$, signal-to-noise ratio is $3 \mathrm{~dB}$ then what is the receiver sensitivity? Ans 1. $5 \mathrm{~dB}$ 2. $-1 \mathrm{~dB}$ 3. $1 \mathrm{~dB}$ ... Option 1 ID : 6306801082353 Option 2 ID : 6306801082355 Option 3 ID : 6306801082354 Option 4 ID : 6306801082356 Status: Not Answered Chosen Option : --
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IB JIO Grade-2 Tech 2023 part-2: 40
Q.40 Identify the practical silicon diode circuit and calculate the peak output voltage ( $\left.\mathrm{V}_{\text {out }}\right)$. Ans 1. It is Half wave rectifier with peak voltage 4.3 Volts. 2. It is Full wave rectifier ... 6306801082128 Option 2 ID : 6306801082126 Option 3 ID : 6306801082127 Option 4 ID : 6306801082125 Status : Not Answered Chosen Option : --
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IB JIO Grade-2 Tech 2023 part-2: 41
Q.41 Which statement is FALSE regarding DRAM memory? Ans 1. DRAMS consist of MOSFET and Capacitor. 2. DRAMs can be used for storing large data. 3. In DRAM MOSFET act as a switch. 4. Dynamic memory cells store a data bit in a ... : 6306801082199 Option 2 ID : 6306801082198 Option 3 ID : 6306801082200 Option 4 ID : 6306801082197 Status : Answered Chosen Option : 3
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IB JIO Grade-2 Tech 2023 part-2: 42
Q.42 If 1011 is transmitted with alternate-mark-inversion bipolar encoding and the corresponding transmitted voltage levels are $\{+1,0,-1,+1\}$. If the received voltage levels due to noise are $\{+1,0,-1,-1\}$ then how ... 6306801082305 Option 2 ID : 6306801082306 Option 3 ID : 6306801082308 Option 4 ID : 6306801082307 Status : Not Answered Chosen Option : --
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IB JIO Grade-2 Tech 2023 part-2: 43
Q.43 Which statement is FALSE for PLL used for demodulation of FM? Ans 1. PLL uses feedback to reduce noise power at output of demodulator. 2. PLL uses feedback system thus increase the bandwidth. 3. A PLL demodulator uses negative feedback ... 2 ID : 6306801082141 Option 3 ID : 6306801082144 Option 4 ID : 6306801082143 Status : Not Answered Chosen Option : --
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IB JIO Grade-2 Tech 2023 part-2: 44
Q.44 Which are the popular frequency ranges used in India for Wi-Fi communication? Ans 1. $0.1 \mathrm{GHz}$ and $0.5 \mathrm{GHz}$ 2. $0.1 \mathrm{MHz}$ and $0.5 \mathrm{MHz}$ 3. $2.4 \mathrm{MHz}$ ... Option 1 ID : 6306801082334 Option 2 ID : 6306801082333 Option 3 ID : 6306801082335 Option 4 ID : 6306801082336 Status : Answered Chosen Option : 3
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