Candidates preparing for Assistant Engineer (Instrumentation) competitive examinations can now practice Interactive MCQs (Questions 1–25) in an easy-to-use HTML format. This online practice set is designed to improve concept clarity, accuracy, and exam readiness through instant answer validation and explanations.
These questions are aligned with the official syllabus and exam pattern, covering core topics from Engineering Mathematics, Electrical Engineering, Electronics, Signals & Systems, and Instrumentation basics.
Electrical Engineering – Interactive MCQs
Q1. In a cable capacitor, the voltage gradient is maximum at the surface of the:
Q2. In an RC circuit connected across a dc voltage source, which of the following is zero at the beginning of the transient state?
Q3. The rms value of a half-wave rectified current is 10A, its value for full wave rectification would be:
Q4. A sine wave has a frequency of 50Hz. Its angular frequency is:
Q5. If power factor of a circuit is unity, its reactive power will be:
Q6. A transformer with R=0.06?, X=0.19?, I=50A, V=200V at 0.8 PF lag has an approximate voltage regulation of:
Q7. In a three phase induction motor, the maximum torque is independent of:
Q8. The group delay is defined as:
Q9. If the impulse response for a continuous-time LTI system is given, the system function H(s) has:
Q10. The convolution operation is:
Q11. The DTFT of a discrete sequence {x[n]} is periodic in:
Q12. For a real odd periodic signal, the Fourier series coefficients are:
Q13. The impulse response of a real-coefficient FIR filter with linear phase must be:
Q14. The ROC of two-sided z-transform lies:
Q15. Continuous convolution of two bandlimited signals results in:
Q16. For the system y”(t)+5y'(t)+6y(t)=x(t) with zero initial conditions, the Laplace transform Y(s)/X(s) is:
Q17. The convolution theorem is applicable to: