Prepare for UPSC Indian Engineering Services (IES/ESE) with verified solutions across Analog & Digital Communications, VLSI & Semiconductor Devices, Signals & Systems, Electromagnetics & Antennas, Microwave Engineering, Control Systems, Computer Organization, and Network Theory.
Marking pattern: +2.00 positive, -0.66 negative (Official UPSC ESE 1/3rd Negative Marking Scheme; 150 Questions, 300 Marks).
The atomic packing factor of a simple cubic structure is
For some solid materials, each atom possesses a permanent dipole moment by
Which one of the following statements is not correct regarding laminates?
Which one of the following statements is not correct regarding mercury?
What is the value of interplanar spacing for (231) plane of an FCC structure whose atomic radius is 0.125 nm?
When a bar is subjected to a rapidly alternating magnetic field, there is rapid extension and contraction in the length of the bar. This phenomenon is known as
The material composed of $\text{C}_{60}$ molecule that contains sixty carbon atoms in a network of $\text{sp}^{2}$ bonding which forms a spherical structure, is known as
The electronic properties of the nanotubes could be changed between metallic and semiconducting simply by varying
A very low temperature, where resistivity of certain materials abruptly plunges from a finite value to one that is virtually 0 (zero) and remains there upon further cooling, is called
Superconducting materials are used in which of the following applications?
Select the correct answer using the code given below.
Consider the following statements:
Which of the above statements is/are not correct?
Which of the following are not the production methods for carbon nanotubes?
Select the correct answer using the code given below.
Which one of the following statements is correct regarding induction motor?
What is the coil pitch to eliminate the 5th harmonic in the induced e.m.f. of a synchronous generator?
Which one of the following represents a single element such as a voltage source or a resistor?
What is the value of the maximum power transferred to the load resistor $R_{L}$ in the given circuit?
In the figure given below, the value of voltage drop across the resistor $R_{1}$ is
Which one of the following is a merit of nuclear power plant?
Which one of the following is not a part of the nuclear reactor?
The efficiency of a nuclear plant is
The voltage induced in a coil by a changing flux will be of such a polarity that if a current could flow as a result of that induced voltage, the flux established by that current would oppose the causing or original flux change. It is known as
The measure of a coil's ability to produce flux is called
Which one of the following temperatures exists for the magnetic moments of a ferromagnetic material which become sufficiently diverse in orientation that the material becomes nonmagnetic?
Which one of the following statements is correct regarding Leclanché cell?
Which one of the following statements is not correct regarding carrier lifetime in semiconductors?