ESE 2021 Technical Quiz || Full Revision Mock Test-3
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Question 1
The power delivered to the load resistance RL is _____. β of the transistor is 20.
VBE(active) = 0.7 V, VCE(sat) = 0.2 V
Question 2
Consider a random variable ‘x’ having pdf given by
, otherwise
If random variable ‘y’ is generated such that . Then the pdf
Question 3
An algorithm made up of 2 modules M1 and M2. If order of M1 is f(n) and that of M2 is g(n), then the order of the algorithm is
Question 4
A unity feedback system has an open-loop transfer function If the damping ratio is 0.5, then what is the value of K?
Question 5
A signal is applied to a system with transfer function then the steady state output is
Question 6
The semiconductor RAM of a digital computer has a word length of 16-bits and a capacity of 65,536 words. It has a cycle time of 80 ns. If the CPU is much faster than the memory, the time required to fill 1,024 bytes of this memory with all 0’s will be
Question 7
The Boolean function ‘f’ implemented as shown in the figure using two input multiplexers is
Question 8
A symmetric dielectric slab waveguide is to guide light at wavelength λ =1.30 μm. The slab thickness is to be d = 5.00 μm, and the refractive index of the surrounding material is n2 = 1.450. Determine the maximum allowable refractive index of the slab material that will allow single TE and TM mode operation.
Question 9
How is an N-channel Junction Field Effect Transistor operated as an amplifier?
Question 10
Match List-I with List-II and select the correct answer using the codes given below the lists:
List-I
A- Zener Diode
B- Gunn Diode
C- Schottky Diode
D- Tunnel Diode
List-II
1- Negative resistance device fabricated using semiconductors like Si, GaAs, Ge etc. can be operated at a frequency of 10 GHz.
2- Quantum mechanical tunnelling with very thin depletion layers under reverse bias operated as a reference voltage source.
3- Negative conductance device, operates on the principle of transfer of electron from one region of conduction band to another.
4- Metal-semiconductor diode, have rectification properties.
Codes:
Question 11
The number of atoms per unit cell of a hexagonal closed racking (HCP) structure is?
Question 12
Phase velocity νp and group velocity νg in a waveguide are related to the velocity of light c as
Question 13
A thermistor has a resistance of 4 kΩ at 0°C and 800 Ω at 40°C . Determine large of resistance to be measured if temperature rises from 50°C to 100°C
Question 14
TCP is preferred over UDP because it provides
1) Fastest communication
2) Connection oriented service
3) Reliable service
Question 15
What is a waveguide device which is designed with steps in either the magnetic or electric plane known as?
Question 16
A 2-port network can be described by the following equations.
This network is:
Question 17
A 20-μF capacitor has energy W(t) = 10cos2 377t J. Determine the current through the capacitor.
Question 18
Let .
It is given that for 0 ≤ t ≤ 3, Determine the value of A
Question 19
A satellite link uses different frequencies for receiving and transmitting in order to