Related Questions

A conditionally stable system exhibits poor stability at
A low frequencies
B reduced values of open loop gain
C increased values of open loop gain
D none of the above
Which of the following should be done to make an unstable system stable ?
A The gain of the system should be decreased
B The gain of the system should be increased
C The number of poles to the loop transfer function should be increased
D The number of zeros to the loop transfer function should be increased
A policy taken with critical illness rider benefit is being assigned. Which type of assignment would suit the intended purpose because if the life insured is diagnosed with a critical illness, he only should receive the critical illness rider claim?
A Absolute assignment
B Conditional assignment
C Loan assignment
D Collateral assignment
A spring controlled governor is found unstable. It can be made stable by
A increasing the spring stiffness
B decreasing the spring stiffness
C increasing the ball mass
D decreasing the ball mass
In closed loop control system, with positive value of feedback gain the overall gain of the system will
A Decrease
B Increase
C Be unaffected
D Exponentially increase
On selling a chair at 7% loss and a table at 17% gain, a man gains Tk 296. If he sells the chair at 7% gain and the table at 12% gain, then he gains Tk. 400. The actual price of the table is ---
A Tk. 2400
B Tk. 2200
C Tk. 1800
D Tk. 1600
If the current gain of the amplifier is X, its voltage gain is Y, then its power gain will be
A $$\frac{{\text{X}}}{{\text{Y}}}$$
B X × Y
C X + Y
D X - Y
A relationship between processes such that each has some part (critical section) which must not be executed while the critical section of another is being executed, is known as
A semaphore
B mutual exclusion
C multiprogramming
D multitasking
E None of the above
For a stable system having two or more gain crossover frequencies the phase margin is measured at the highest crossover frequency.
A True
B False
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

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