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How the electricity is transmitted?

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As per Shannon’s channel capacity theorem, if samples are transmitted in ‘T’ seconds over a noisy channel which is bandlimited to ‘B’ Hz. The number of samples ‘n’ is given by (symbols/notations carry their usual meaning) A) B/T B) T/B C) 2BT D) BT/2 

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The Central Electricity Regulatory Commission (CERC) is mainly responsible for:  (A) Regulating tariffs for generation and inter-state transmission of energy including tariffs  (B) Advising the government on tariff policy and promoting competition  (C) Efficiency and economy in the electricity industry  (D) All of the above

asked May 8, 2018 in Electrical Engineering by Shimroz123
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As per Electricity Act, ____________means any line which is used for carrying electricity for any purpose.  (A) Electric line (B) Transmission line (C) All of the above (D) None of the above

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Is electricity generated in AC or DC?

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The consumer of electricity could be : (A) Domestic (B) Agricultural (C) Industrial and Commercial (D) All of the above 

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which device converts sound to electricity ?

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Do you think is DC better than AC to transmit energy?

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How many characters per sec (7 bits + 1 parity) can be transmitted over a 2400 bps line if the transfer is synchronous (1 start bit and 1 stop bit)?  A) 300 B) 240 C) 250 D) 275

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Power transmitted through a pipe is maximum when the loss of head due to friction is : (A) one-half of the total head supplied (B) one-third of the total head supplied (C) one-fourth of the total head supplied (D) zero

asked Jun 14, 2018 in Mechanical Engineering by Quiz
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If 5000 kW power is transmitted at 220 kV in place of 11 kV, reduction in the value of electric current will be (a) 90% (b) 95% (c) 5% (d) 10% 

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1 answer 51 views

If 3000 kW power is to be transmitted over a distance of 30 km, the desirable transmission voltage will be.  (A) 11 kV (B) 33 kV (C) 66 kV (D) 132 kV

asked May 8, 2018 in Electric Power Transmission by Shimroz123
0 answers 70 views

. If the peak transmitted power in a radar system is increased by a factor of 16, the maximum range will be increased by a factor of : (A) 2 (B) 4 (C) 8 (D) 16

asked Apr 14, 2018 in Electrical Engineering by Shimroz123
0 answers 16 views

 The information rate to be transmitted is 900 bits /sec, FEC is 3/4 , the symbol rate for QPSK modulation scheme is : a. 225 symbols /sec b. 450 symbols /sec c. 600 symbols /sec d. 675 symbols /sec

asked Apr 12, 2018 in Electronics Engineering by Shimroz123
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 For identical total transmitted power, the ratio of S/N for wide band FM to S/N of DSB-AM (with ma=1) is : ( Given fm = 15 KHz & frequency. deviation =+/- 75 KHz) a. 112.5 b. 300 c. 75 d. 450

asked Apr 12, 2018 in Electronics Engineering by Shimroz123
0 answers 22 views

What is the maximum data rate that can be transmitted using a QPSK modulation with a roll-off factor of 0.2 for a 36 MHZ transponder?  A) 7.2 Mbps B) 30 Mbps C) 43.2 Mbps D) 60 Mbps

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asked Mar 10, 2018 in Advanced electrical power system by Quiz
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500 Bytes of data needs to be transmitted from an UART every lOOms. What should be the minimum transmission baud rate of UART, assuming 1 start bit, 8 data bits and 2 stop bits?  A) 50000 B) 55000 C) 40000 D) 45000

asked Apr 9, 2018 in Electrical Engineering by Shimroz123

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