Will you please provide me the TNPSC Combined Engineering Service Exam Sample Question Paper????

Yes sure, here I am sharing the TNPSC Combined Engineering Service Exam Sample Question Paper:

Medium wave radio signals may be received at far off distances at night because
A) radio waves travel faster at night
B) ground wave attenuation is low at night
C) the sky wave is stronger at night
D) there is no fading at night.

175. For transmission of normal speech signal, the PCM channel needs a bandwidth
of
A) 64kHz B) 8kHz
C) 4kHz D) 2 kHz.

176. A comparison of frequency division and time division multiplexing systems
shows that
A) FDM requires a lower bandwidth, but TDM has greater noise immunity
B) FDM has greater noise immunity and requires lower bandwidth than TDM
C) FDM requires channel synchronisation, while TDM has greater noise
immunity
D) FDM requires more multiplexing, while TDM requires band-pass filter.

177. A communication channel disturbed by additive white Gaussian noise has a
bandwidth of 4 kHz and SNR of 15. The highest transmission rate that such a
channel can support ( in k-bits / sec ) is
A) 16 B) 1.6
C) 32 D) 60.

178. The intermediate frequency of a superhet receiver is 450 kHz. If it is tuned to
1200 kHz, the image frequency will be
A) 750 kHz B) 900 kHz
C) 1650 kHz D) 2100 kHz.








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Attached Files

TNPSC Combined Engineering Service Exam Sample Question Paper.pdf (698.9 KB, 77 views)