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
An oscillator employs ___________ feedback
A Positive
B Negative
C Neither positive nor negative
D Data insufficient
The output stage of a multistage amplifier usually employs ___________
A Push-pull amplifier
B Preamplifier
C Class A power amplifier
D None of the above
Refrigeration in aeroplanes usually employs the following refrigerant
A CO2
B Freon-11
C Freon-22
D Air
Mining industry usually employs following motive power
A A.C. electric motor
B Compressed air
C Petrol engine
D Diesel engine
Close circuit grinding by a ball mill with air sweeping employs a
A Classifier
B Cyclone separator between mill & classifier
C Both A & B
D Neither A nor B
A survey was conducted among the students of Khulna University to find out how many forms of physical exercise usually swam, 25% said they usually did jogging, 20% said they played cricket, 15% said they usually played football and 20 respondents said they did not take any form of exercise. From the above findings it can be concluded that.
A The student of khulna University do not usually take physical exercise.
B No respondent took more than one form of exercise.
C The method of data collection was not valid.
D Some of the respondents took more than one form of exercise.
Regenerative feedback implies feedback with
A Oscillations
B Step input
C Negative sign
D Positive sign
Voltage Series (feedback also called series-shunt feedback) results in
A Increase in both input & output impedances
B Decreases in both input & output impedances
C Increase in input impedance & decreases in output impedance
D Decrease in input impedance & increase in output impedance

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