Related Questions

A garments factory employs 3 categories of workers K, M and N. The efficiency of the 3 categories of workers to do a specific task is in the ratio of 3 : 5 : 6 respectively and the factory employs 15 of category K, 12 of category M and 3 of category N. If the total wages paid to the entire group of 30 workers is Tk. 492 per hour, what will be the wages earned by a category N worker for an 8-hour day?
A Tk. 144
B Tk. 72
C Tk. 192
D Tk. 576
Q.(1-4): Answer the questions on the basis of the information given below. * F,G and H are insurance companies , Q,R,S and T are private detectives .Each detective works for at least one of the insurance companies. * Q always works for F and at least one of the other companies. Some of the time G employs only one of these detectives,' the rest of the time it employs exactly two of them. *F and H each employ exactly two of these detectives all the time. If R works for H only, and if S works for G and H only, T works for--
A F only
B G only
C H only
D both F and G
A feedback circuit usually employs ___________ network
A Resistive
B Capacitive
C Inductive
D None of the above
In an LC oscillator, the frequency of oscillator is ___________ L or C.
A Proportional to square of
B Directly proportional to
C Independent of the values of
D Inversely proportional to square root of
In a radio receiver, we generally use ___________ oscillator as a local oscillator
A Crystal
B Wien-bridge
C Phase-shift
D Hartley
A Wien bridge oscillator uses ___________ feedback
A Only positive
B Only negative
C Both positive and negative
D None of the above
In Colpitt's oscillator, feedback is obtained ___________
A By magnetic induction
B By a tickler coil
C From the centre of split capacitors
D None of the above
In a Wien-bridge oscillator, if the resistances in the positive feedback circuit are decreased, the frequency ___________
A Remains the same
B Decreases
C Increases
D Insufficient data
একটি সরল দোলকের সুতার দৈর্ঘ্য 99 cm এবং এর দোলনকাল 2 sec হলে দোলক পিন্ডের ব্যাসার্ধ নির্ণয় কর। (The length of the string and period of oscillation of a simple oscillator are 99 cm and 2 sec, respectively. Find the radius of the oscillator.)
A 1.29 cm
B 7 mm
C 3.18 mm
D 0.28 cm
E 2.15 mm
For an oscillator to properly start, the gain around the feedback loop must initially be
A 1
B Greater than 1
C Less than 1
D Equal to attenuation of feedback circuit

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