Select the correct answer for the following questions: 1. Thermometer is considered 1t order because one assumption is that, A. All conductance to heat flow is in mercury film and in glass wall of the...

Extracted text: Select the correct answer for the following questions: 1. Thermometer is considered 1t order because one assumption is that, A. All conductance to heat flow is in mercury film and in glass wall of the bulb. B. All conductance to heat flow is in liquid film. C. All conductance to heat flow is in glass wall of the bulb only. D. Non of the above. When 2nd order system subjected to sinusoidal input function, the amplitude of output when compared to the input is, A. higher В. Тower C. equal 2. D. non of the above. Decay ratio is: A. Proportional to E B. Inverse proportional to C. Proportional to response time 3. D. Non of the above 4. The ultimate value of 2nd order under-damped system to impulse forcing function is, А. I В. zero С. -1 D. 2 5. resistance, R, in interacting system are, The time constants for two similar tanks of area A for each with linear 0.38 (A*R) for each 0.38*(A*R) for one tank and 2.62*(A*R) for other 2*A*R for each А. В. С. D. (1/2)*A*R for each 6. A system having the transfer function G(s) = 1/(4 s + 1 ). The response Y (t) is sinusoidal. The amplitude of the output wave is 0.6 and it lags behind the input by 1.5 min. The input function is: A. Sin (0.75 t-71.5) B. Sin 0.75 C. 2 sin (0.75 t-71.5) D. 2 sin 0.75 t E. Cos 0.75 t 7. 1* order system having the following differential equation: 3 dy u (t – 2) = u (t – 8) - y - 2 y(0) = 2 dt The Laplace of input function is: A. e-25 + ? e-8s 2 В. + e-8s 3 C. e-2s + e-8s