Related Questions

What frequency range is used for microwave communications, satellite and radar?
A Low Frequency : 30 kHz to 300 kHz
B Medium Frequency : 300 kHz to 3 MHz
C Super High Frequency : 3000 MHz to 30000 MHz
D Extremely High Frequency :30,000 MHz
E None of the above
In microwave transmission using digital radio, what causes most intersymbol interference?
A Delayed spreading
B Rayleigh fading
C Random Doppler shift
D Slow fading
কোনো খেলার সরাসরি সম্প্রচারের ডেটা ট্রান্সমিট হবার প্রক্রিয়া- (i) Broadcast Transmission (ii) Duplex Transmission (iii) Simplex Mode Transmission নিচের কোনটি সঠিক?
A i ও ii
B i ও iii
C ii ও iii
D i ii ও iii
Microwave frequencies are normally regarded as those in the range of
A 1 to 500 MHz
B 1000 to 10,000 GHz
C 1 to 100 GHz
D 10 to 1000 GHz
A company produces five types of shirts -- A,B,C,D and E-using cloth of three qualities -- high, medium and low , using dyes of three qualities-- high, medium and low. One shirt requires 1.5 m of cloth .The following table gives respectively : The number of shirts (of each category) produced, in thousands. The percentage distribution of cloth quality in each type of shirt, and The percentage distribution of dye quality in each type of shirt. What is the ratio of low quality dye used for C-type shirts to that used for D-type shirts ?
A 2:3
B 1:2
C 2:1
D 3:2
Which of the following is used as a high power microwave oscillator?
A Thyratron
B Magnetron
C Klystron
D Reflex-klystron
What frequency range is used for FM radio transmission?
A Very Low Frequency : 3 kHz to 30. kHz
B Low Frequency : 30 kHz to 300 kHz
C High Frequency : 3 MHz to 30 MHz
D Very High Frequency : 30 MHz to 300 MHz
E None of the above
A high-power microwave pulse of the order of megawatts can be generated by a
A Traveling-wave tube
B Magnetron
C Reflex klystron
D Gunn diode
RC coupling is generally confined to low power applications because of
A Large value of coupling capacitor
B Low efficiency
C Large number of components
D None of the above
A company produces five types of shirts -- A,B,C,D and E-using cloth of three qualities -- high, medium and low , using dyes of three qualities-- high, medium and low. One shirt requires 1.5 m of cloth .The following table gives respectively : The number of shirts (of each category) produced, in thousands. The percentage distribution of cloth quality in each type of shirt, and The percentage distribution of dye quality in each type of shirt. How many meters of low-quality cloth is consumed?
A 40,00 m
B 60,000 m
C 46,500 m
D 22,500 m

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