Past Questions
What are the difference between Control & Relay (C&R) panels and switchgears? At what voltage level switchgear is commonly used in Mizoram? Mention in which sub-station 33kV Switchgear is used owned by Mizoram?
Briefly mention different methods of improving Earth Resistance?
The skin effect depends upon
Thyristor is basically
The most convenient way of achieving large capacitance is by using-
A zener diode is used as -
The direction of induced e.m.f in a conductor (or coil) can be determined by-
Delta/Star or star/delta transformation technique is applied to -
Insulation resistance of 6.3MVA, 33/11kV transformer is measured between HV and LV and the result obtained is shown below: (a) 41.40 after 10 minutes, (b) 20.70 after 1 minutes, (c) 11.60 after 15 seconds. Calculate the Polarization Index (PI) value and the Dielectric Absorption Ratio (DAR) value?
What are the differences between power transformers and distribution transformers?
A length of wire has a resistance of 6 ohms. The resistance of a wire of the same material three times as long and twice the cross-sectional area will be
The superposition theorem is used when the circuit contains
Explain direct and indirect lightning strike? Mention how transformer must be protected from lightning
How are hydroelectric power stations divided on the basis of head of water? Mention the heads and type of turbines recommended.
What are the differences between hierarchical, network, and relational data models? Provide a use-case example where each model would be best suited.
What are the key differences between guided and unguided transmission media? Give examples of each and discuss their advantages.
What are the main functions of Capacitive Voltage Transformer (CVT)? At what system voltage CVT is used? How is the HV terminals of CVT connected?
Which cryptographic algorithm is commonly used in digital signatures?
What are the difference between Control & Relay (C&R) panels and switchgears? At what voltage level switchgear is commonly used in Mizoram? Mention in which sub-station 33kV Switchgear is used owned by Mizoram?
Which of the following transmission media is most immune to electromagnetic interference (EMI)?
In a multithreaded environment, each thread has its own:
Explain the major components of an operating system and discuss how each contributes to system functionality.
Define a semaphore. Distinguish between counting and binary semaphores
The external PT ratio is 33000/110V and external CT ratio is 50/1A. If the energy meter is calibrated for PT ratio 33000/110V, CT ratio -/1A then what will be the multiplying factor for the meter?
In TCP, which field ensures reliable delivery by confirming receipt of data?