Related Questions

Which of the following statements is correct for a system with gain margin close to unity or a phase margin close to zero ?
A The system is relatively stable
B The system is highly stable
C The system is highly oscillatory
D None of the above
Gain margin and phase margin can be determined from Bode plots as well as Nyquist plot.
A True
B False
Typical specifications for design stipulates the gain margin and phase margin to be respectively
A > 1.7 and > 30°
B 30°
C > 1.7 and
A control system is unstable, if the open loop frequency response exhibits an amplitude ratio exceeding unity at the crossover frequency. This is __________ criterion.
A Bode stability
B Nyquist
C Routh stability
D None of these
A conditionally stable system is stable for the value of gain between two critical values. It is unstable if
A The gain is increased beyond upper critical value
B The gain is decreased below lower critical value
C Both A and B
D None of the above
A company wishes to earn a 20% profit margin on selling price . Which of the following is he profit mark-up on cost , which will achieve the required profit margin ?
A 33%
B 25%
C 20%
D 50%
A company wishes to earn a 20% profit margin on selling price. Which of the following is the profit mark-up on cost, which will achieve the required profit margin ?
A 33%
B 25%
C 20%
D 50%
In a recent year, Windsor's Boat's reported an asset turnover ratio of 2.46 times and a profit margin of 19.8% . In the same year, Sarah's Sail Boats reported an asset turnover ratio of 1.27 times and a profit margin of 9.9% . Which of the following statements is false ?
A Sarah's did a better job of turning over its assets
B Windsor's did a better job of generating profit from its sales
C Windsor's return on assets (ROA) is 48.7% while Sarah's return on assets is 12.6%
D None of the other answers is false
MN Company is planning to sell 200,000 pliers for Tk 4 per unit. The contribution margin ratio is 25% and fixed cost is Tk 40,000. What is the margin of safety of MN Company?
A 15%
B 20%
C 25%
D 30%
E None of these
You have two switches connected together with two crossover cables for redundancy, and STP is disabled. Which of the following will happen between the switches?
A The routing tables on the switches will not update
B The MAC forward\/;filter table will not update on the switch
C Broadcast storms will occur on the switched network
D The switches will automatically load-balance between the two links

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