Description : Which conference in the ITU-structure does the telecommunication standardization bureau report? A. World telecommunication standardization conference B. ITU-development sector C. Radio regulation board D. The secretary general
Last Answer : A. World telecommunication standardization conference
Description : The use of telecommunication for the transmission of signals to initiate, modify or terminate functions of equipment at a distance. A. Tracking B. space command C. Telecommand D. Trunking
Last Answer : C. Telecommand
Description : The use of telecommunication for the transmission of signals to initiate, modify or terminate functions of equipment at a distance. A. Tracking B. Telemetry C. Telecommand D. Space telemetry
Description : Operating method in which the transmission is made alternately in each direction of a telecommunication channel A. Semi-duplex operation B. Duplex operation C. Half-duplex operation D. Simplex operation
Last Answer : C. Half-duplex operation
Description : Term for the transmission of printed pictures by radio? A. Facsimile B. ACSSB C. Xerography D. Television
Last Answer : A. Facsimile
Description : What noise is a transient short-duration disturbance distributed essentially uniformly over the useful passband of a transmission system? A. Flicker noise B. Transit-time noise C. Shot noise D. Impulse noise
Last Answer : D. Impulse noise
Description : Which of the following is not reckoned as a ‘value added’ telecommunication service? (1) Electronic Mail (2) STD (3) FAX (4) Radio-Paging Service
Last Answer : FAX
Description : The latest government regulation in the telecommunication which provides policy for the provision of local exchange carrier service. A. E.O. 546 B. E.O. 109 C. Act 3948 D. E.O. 59
Last Answer : B. E.O. 109
Description : A government regulation in telecommunication which provide policy to improve the provision of local exchange carrier service. A. E.O. 109 B. Act 3846 C. E.O. 59 D. E.O. 546
Last Answer : A. E.O. 109
Description : One of the following stands for SONET acronym in telecommunication A. System optical network B. Simple operation network C. Synchronous optical network D. System operating network
Last Answer : C. Synchronous optical network
Description : Refers to the first generation of local loop system in telecommunication technology. A. GSM B. DECT C. Analogue cellular D. TACS
Last Answer : C. Analogue cellular
Description : The use of telecommunication for automatic indicating or recording measurement at the distance from the measuring instrument. A. Monitoring B. Tracking C. Telemetry D. Telecommand
Last Answer : C. Telemetry
Description : Which of the following regulates the ownership and operation of radio and television stations in the country? A. PD 576-A B. PD 756 C. PD 657 D. PD 677
Last Answer : A. PD 576-A
Description : Factors that determine the radiation resistance of an antenna A. Transmission line length and height of antenna B. The location of the antenna with respect to nearby objects C. It is a constant for all antennas since it is physical D. Sunspot activity and the time of day
Last Answer : B. The location of the antenna with respect to nearby objects
Description : A third symbol radio emission which represent telephone transmission including sound broadcasting. A. W B. F C. C D. E
Last Answer : D. E
Description : Referred by radio regulation as the station in the mobile service not intended to be used while in motion. A. Fixed station B. Base station C. Land station D. Coast station
Last Answer : C. Land station
Description : This is referred to as a fixed radio station that broadcasts program material from studio to transmitter by radio link. A. Aural BC intercity relay B. Aural broadcast STL C. Shortwave station D. Remote-pickup
Last Answer : B. Aural broadcast STL
Description : A radio communications service use in radio regulation between specified fixed points provided primarily for the safety of air navigation and for the regular efficient and economical air transport ... operation service B. Space service C. Aeronautical mobile service D. Aeronautical fixed service
Last Answer : D. Aeronautical fixed service
Description : For a space wave transmission, the radio horizon distance of a receiving antenna with a height of 64 meters is approximately A. 8 km B. 32 km C. 64 km D. 256 km
Last Answer : B. 32 km
Description : What is a selective fading effect? A. A fading effect caused by small changes in beam heading at the receiving station. B. A fading effect caused by phase differences between radio wave ... station D. A fading effect caused by time differences between the receiving and transmitting stations.
Last Answer : B. A fading effect caused by phase differences between radio wave components of the same transmission, as experienced at the receiving station.
Description : What type of transmission is radiated from an aircraft’s radio altimeter antenna? A. An amplitude modulated continuous wave B. A pulse position modulated UHF signal C. A differential phase shift keyed UHF signal D. A frequency modulated continuous wave
Last Answer : D. A frequency modulated continuous wave
Description : For a space wave transmission, the radio horizon distance of a transmitting antenna with a height of 100 meters is approximately: A. 10 km B. 40 km C. 100 km D. 400 km
Last Answer : B. 40 km
Description : What is the major cause of selective fading? A. Small changes in the beam heading at the receiving station. B. Large changes in the height of the ionosphere, as experience at the ... Phase differences between radio wave components of the same transmission, as experienced at the receiving station.
Last Answer : D. Phase differences between radio wave components of the same transmission, as experienced at the receiving station.
Description : What is the first symbol of a radio signal transmission having an amplitude modulated signal carrier, double side band? A. C B. B C. H D. A
Last Answer : D. A
Description : It is an average power of a radio transmitter supplied to the antenna transmission line taken during a long sufficient interval of time and compared with the lowest frequency encountered in the modulation ... operating conditions. A. Carrier power B. Rated power C. Mean power D. Peak envelop power
Last Answer : C. Mean power
Description : Which of the following is not a common microwave application? A. Radar B. Data transmission C. Space communications D. Mobile radio
Last Answer : D. Mobile radio
Description : Referred to as an average power from the radio transmitter supplied to the antenna transmission line taken during one radio frequency cycle under no modulation. A. Carrier power B. Rated power C. Peak envelop power D. Mean power
Last Answer : A. Carrier power
Description : Refers to an effect of selective fading. A. A fading effect caused by phase differences between radio wave components of the same transmission, as experienced at the receiving station. B. A fading ... caused by large changes in the height of the ionosphere, as experienced at the receiving station.
Last Answer : A. A fading effect caused by phase differences between radio wave components of the same transmission, as experienced at the receiving station.
Description : Average power of a radio transmitter supplied to the antenna transmission line by a transmitter during one radio frequency cycle taken under the condition of no modulation. A. Peak envelop power B. Rated power C. Carrier power D. Mean power
Last Answer : C. Carrier power
Description : What is the effect in over modulated amplitude modulated radio broadcasting transmission? A. Interference to adjacent channel B. Higher fidelity C. Increase noise D. Higher audio signal
Last Answer : A. Interference to adjacent channel
Description : Production of radiation by a radio transmitting station A. Monitoring B. Emission C. Radiation D. Transmission
Last Answer : B. Emission
Description : Which among the following is correct about "Child Pornography": a) Pedophiles lure the children by distributing pornographic material. b) Pedophiles falsely represent their selves as of same age and win the confidence ... order to sell those over the internet. e) All of the Above f) None of These
Last Answer : e) All of the Above
Description : What traditional marketing technique is YouTube closest to? A. Print advertising B. Radio advertising C. Mail Advertising D. Television advertising
Last Answer : D. Television advertising
Description : Which of the following statement is incorrect? a. The difference between synchronous and asynchronous transmission is the clocking derived from the data in synchronous transmission. b. Half ... in online activities d. Batch processing is the prefered processing mode for telecommunication operation.
Last Answer : Batch processing is the prefered processing mode for telecommunication operation.
Description : What is the minimum validity period of short term internet and voice call package in mobile phone service of Bangladesh Telecommunication and Regulation Commission ?
Last Answer : Answer : Bangladesh Telecommunication and Regulatory Commission has fixed minimum duration of short term internet and voice call package in mobile phone service for three days.
Description : The use of computers, internet and other communication technologies to provide medical care to patients at distance is known as i) Telecommunication ii) Telemedicine iii) Expert systems iv) None of these
Last Answer : ii) Telemedicine
Description : By Electronic Commerce we mean: a. Commerce of electronic goods b. Commerce which depends on electronics c. Commerce which is based on the use of internet d. Commerce which is based on transactions using computers connected by telecommunication network
Last Answer : d. Commerce which is based on transactions using computers connected by telecommunication network
Description : Slides may contain: a) Text and Graphics Only b) Sound and Movies Only c) Text, Movies, Images, Sound Only and all other objects d) All of the Above e) None of These
Last Answer : d) All of the Above
Description : The front-end of a television receiver, having a bandwidth of 7Mhz, and operating at a temperature of 27˚C , consists of an amplifier having a gain of 15 followed by a mixer whose gain is 20. The ... equivalent noise resistance for this television receiver. A. 8760 Ω B. 875Ω C. 8.76Ω D. 0.876Ω
Last Answer : B. 875Ω
Description : What signal-to-noise ratio is required for satisfactory television reception? A. 10 dB B. 30 dB C. 40 dB D. 20 dB
Last Answer : C. 40 dB
Description : Which band does channel 14 of the television channel belong? A. High VHF band B. EHF band C. UHF band D. Low VHF band
Last Answer : C. UHF band
Description : What controls the contrast of a television cathode ray picture? A. AFC B. video stage gain C. Audio gain control D. CRT bias
Last Answer : B. video stage gain
Description : A third symbol emission which represent television. A. C B. D C. F D. A
Last Answer : C. F
Description : Channel 7 of the regular television channel belongs to which band? A. Low VHF band B. High VHF band C. Low UHF band D. High UHF band
Last Answer : B. High VHF band
Description : What is emission F3F? A. Facsimile B. Modulated CW C. RTTY D. Television
Last Answer : D. Television
Description : The signal to noise ratio that is required for a satisfactory television reception. A. 30 dB B. 40 dB C. 10 dB D. 20 dB
Last Answer : B. 40 dB
Description : In television broadcasting vivid strong colors are often referred as _______. A. Saturation B. Hue C. Chrominance D. Luminance
Last Answer : A. Saturation
Description : An antenna that can only receive a television signal. A. Isotropic antenna B. TVRO C. Reference antenna D. Yagi antenna
Last Answer : B. TVRO
Description : When was the UHF channel (14-83) of television were added? A. 1852 B. 1904 C. 1947 D. 1952
Last Answer : D. 1952