Engineering

ISBT Reasoning for all banking PO,Clerk,IBPS PO,Railway,SSC,IAS,OAS Exams

Q21.

Which of the following is indicate the symbol of P-N diode ?
1) a 2) b
3) c 4) d
5)None of these
Answer : c
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Q22.
Signal flow graph is used to obtain the ------ .
1) stability of the system 2) transfer function of the system controllability of the system
3) observability of the system 4) controllability of the system
5)None of these
Answer : transfer function of the system controllability of the system
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Q23.
The bandwidth needed for transmitting  4 kHz signal using PCM with 128 quantising levels is ----- 
1) 4 kHz 2) 16 kHz
3) 28 kHz 4) 64 kHz
5)None of these
Answer : 28 kHz
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