List of practice Questions

For a pure substance, which of the following does not change during condensation?
Which of the following conditions is not satisfied by an ideal solution?
Accuracy is specified as 0.5% of the true value. At 5% of full scale, error of the instrument will be:
Water enters a storage tank at a temperature, \( T_0 \) and flow rate, \( Q_0 \) and leaving at a flow rate, \( Q \) and temperature, \( T \). There are negligible heat losses in the tank. The area of cross-section of the tank is \( A_c \). The model equation that describes the water temperature variation in the tank is given by:
HDPE water storage tank is an example of:
A gaseous system contains \( H_1 \), \( H_2 \), and \( I_2 \) which participate in the gas phase reaction: \[ 2H_1 \rightleftharpoons H_2 + I_2 \] At a state of reaction equilibrium, the number of thermodynamic degrees of freedom is:
From the following list, identify the properties which are equal in both vapor and liquid phases at equilibrium:
(A) Temperature
(B) Density
(C) Enthalpy
(D) Chemical potential
Choose the \textbf{correct} answer from the options given below:
Bode diagram is a plot of (AR is amplitude ratio; $\omega$ is frequency factor and $\phi$ is phase angle):
Which one is appropriate for the poly-ethyleneterephthalate?
Match the LIST-I with LIST-II\[\begin{array}{|c|c|} \hline \textbf{LIST-I} & \textbf{LIST-II} \\ \hline \text{A. Lag} & \text{I. Speed of response} \\ \hline \text{B. Static and dynamic error} & \text{II. Fidelity} \\ \hline \text{C. Drift} & \text{III. Reproducibility} \\ \hline \text{D. Sensitivity} & \text{IV. Precision} \\ \hline \end{array}\] Choose the correct answer from the options given below:
Unit of rate constant for a zero order reaction is:
If the temperature of a saturated water is increased infinitesimally at constant entropy, the resulting state of water is:
Buna-S is a polymer of:
In an internal combustion engine, during the compression strokes, the heat rejected to the cooling water is 75 J/g and the work input is 120 J/g. The change in internal energy of the working fluid is:
The functionality of the Phenol in the preparation of phenol-formaldehyde resin is :
The characteristic equation for the system is \[ s^3 + 9s^2 + 26s + 12(2 + K_c) = 0 \] Using Routh test, the value of Kc that will keep the system stable is:
Which one is an example of branched polymer?
The transfer function of a PID controller is:
The liquid used in hydraulic transmission is:
ABS is a:
The unit step response of the transfer function \( G(s) = \frac{1}{s^2 + 2s + 3} \) has:
10 ml of 0.5 M HCl is mixed with 30 ml of 0.3 M HCl, the molarity of the solution is:
A first-order system with unity gain and time constant \( \tau \) is subjected to sinusoidal input having a frequency \( \omega \) of \( \frac{1}{\tau} \). The amplitude ratio for such system is:
Carothers equation may define gel formation for the:
A step change of magnitude is introduced to a system having the transfer function \[ G(s) = \frac{2}{s^2 + 2s + 4} \] The percent overshoot is: