Related Questions

The difference between a two-digit number and the number obtained by interchanging the digits is 36. What is the difference between the sum and difference of the digits of the number if the ratio between the digits the number is 1 : 2?
A 4
B 8
C 16
D 24
The difference between the radio of bigger difference between circle and smaller circle is 14 and the difference between their sareas is 1056 cm2 . Radius of the smaller circle is .
A 7 cm
B 5 cm
C 9 cm
D 3 cm
Pressure difference between two points in vessels, pipelines or in two different pipelines can be measured by a differential manometer. The pressure difference measured as the mm of water coloumn in case of mercury-water, differential manometer is equal to (where, H = difference in height of mercury column in mm).
A H
B 12.6 H
C 13.6 H
D 14.6 H
In a control system integral error compensation _______ steady state error
A Increases
B Minimizes
C Does not have any effect on
D All of the mentioned
Integral control action
A Removes offset
B May lead to oscillatory response
C Both (a) and (b)
D Neither (a) nor (b)
In pneumatic control systems the control valve used as final control element converts
A Pressure signal to electric signal
B Pressure signal to position change
C Electric signal to pressure signal
D Position change to pressure signal
which one is a fossil derivative ?
A Methane
B Ethane
C Butane
D Pentene
ex এর অন্তরক সহগ ( derivative ) কত?
A   -ex4x
B ex4x 
C ex2x
D   ex4x.ex
x>0 এর সাপেক্ষে e ভিত্তিক log(1/x) এর derivative-
A 1/x²
B -1/x
C 1/x
D -1/x²
Which one the following is not a derivative?
A Option
B Futures
C Swap
D Forward Contract

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