Related Questions

A typist can type 125 pages, 36 lines cach, 11 words in each line in 5 days. How many pages of 30 lines each and 12 words to each line can he type in 6 days?
A 160
B 165
C 170
D 175
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
Computers cannot communicate with each other directly over telephone lines because they use digital pulses whereas telephone lines use analog sound frequencies. What is the name of the device which permits digital to analog conversion at the start of a long distance transmission?
A Interface
B Modem
C Attenuation
D Teleprocessor
E None of the above
Nobody believes a man who lacks confidence in his ability . None should sit idle and shirk his duty on the plea that it is beyond his power to do without the help of others . Such a man always falls behind . He meets failures and suffers in the long run . So that everyone should possess the virtue of -
A punctuality
B dignity
C boldness
D self-reliance
It is best to use for coupling a coaxial line to a parallel wire transmission line.
A Directional Coupler
B Balun
C Slotted line
D Tee
What will be the reflection co-efficient of the wave of load connected to transmission line if surge impedance of the line is equal to load ?
A Zero
B Unity
C Infinity
D None of the above
The interaction between a transmission line and communication line is minimized by
A transposing transmission as well as communication lines
B increasing the height of the trans-mission line tower
C increasing the distance between the two lines
D all of the above
The speed characteristics of an induction motor closely resemble the speed-load characteristics of which of the following machines
A D.C. series motor
B D.C. shunt motor
C Universal motor
D None of the above
On moving the feed line (q-line) from saturated liquid feed (vertical position) to saturated vapor feed (horizontal feed), if the slope of both the operating lines are to be increased, then it will result in
A Greater degree of separation with a fixed number of trays
B Increased reboiler load
C Increased reflux ratio
D None of these
একটি সমতল নিঃসরণ গ্রেটিং এ লম্বভাবে আলো আপতিত হচ্ছে। এতে সবুজ আলোর = λ=5400A° যে কোন একটি ক্রম, বেগুনী আলোর λ=4050A° পরবর্তী উচ্চক্রমের উপরে পর্দায় উপরি পতিত হচ্ছে। যদি অপবর্তন কোণ 30° হয়, তাহলে গ্রেটিং এ প্রতি cm এ রেখার সংখ্যা কত হবে?(The light is incident on a plane diffraction grating perpendicularly. The green line λ=5400A° with an order superimposes on the violet line λ=4050A° of the next higher order. If the angle of diffraction is 300, then how many lines are in the grating per cm?)
A 3086 lines/em
B 308600 lines/cm
C 324 x 106 lines/cm
D 432 x 106 lines/cm
E 2314 lines/cm

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