MES Jr. Grade • Paper-I
If k is Boltzmann’s constant and T is absolute temp, then at room temp
A)
kT 0.025 eV
B)
kT 0.5 eV
C)
kT 1 eV
D)
kT 100 eV
Based on established principles in Mechanical Engineering, the correct and most appropriate choice is 'kT 1 eV' (Option C).
MES Jr. Grade • Paper-I
For a voltage source to be neglected, the terminals across the source should be -
A)
replaced by inductor
B)
short circuited
C)
replaced by some resistance
D)
open circuited
Based on established principles in the relevant subject area, the correct and most appropriate choice is 'short circuited' (Option B).
MES Jr. Grade • Paper-I
If source impedance is complex, then maximum power transfer occurs when the load impedance is _________ the source impedance.
A)
equal to
B)
negative of
C)
complex conjugate of
D)
negative of complex conjugate of
Based on established principles in the relevant subject area, the correct and most appropriate choice is 'negative of' (Option B).
MES Jr. Grade • Paper-I
A system produces zero output for one input and same gives the same output for several other inputs. What is the system called?
A)
Non – invertible System
B)
Invertible system
C)
Non – causal system
D)
Causal system
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'Causal system' (Option D).
MES Jr. Grade • Paper-I
In paramagnetic materials -
A)
permanent magnetic dipoles exist but the interaction between neighbouring dipoles is negligible
B)
permanent magnetic dipole do not exist
C)
permanent magnetic dipoles exist and the interaction between neighbouring dipoles is very strong
D)
permanent magnetic dipole moment may or may not exist
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'permanent magnetic dipole moment may or may not exist' (Option D).
MES Jr. Grade • Paper-I
Ferrites have -
A)
a low copper loss
B)
low eddy current loss
C)
low resistivity
D)
higher specific gravity compared to iron
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'higher specific gravity compared to iron' (Option D).
MES Jr. Grade • Paper-I
The colour code on a carbon resistor is red-red-black-silver. The value of resistor is -
A)
22000 W
B)
2200 W
C)
22 ± 5% W
D)
22 ± 10% W
Based on established principles in the relevant subject area, the correct and most appropriate choice is '22000 W' (Option A).
MES Jr. Grade • Paper-I
The circuit in which current has a complete path to flow is called _________ circuit.
A)
short
B)
open
C)
closed
D)
open loop
Based on established principles in the relevant subject area, the correct and most appropriate choice is 'open' (Option B).
MES Jr. Grade • Paper-I
The dual pair of current is?
A)
voltage
B)
current source
C)
capacitance
D)
conductance
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'voltage' (Option A).
MES Jr. Grade • Paper-I
If the resistances 1W, 2W, 3W, 4W are parallel, then the equivalent resistance is?
A)
0.46 W
B)
0.48 W
C)
0.5 W
D)
0.52 W
Based on established principles in the relevant subject area, the correct and most appropriate choice is '0.5 W' (Option C).
MES Jr. Grade • Paper-I
A system which is linear is said to obey the rules of -
A)
scaling
B)
additivity
C)
both scaling and additivity
D)
homogeneity
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'homogeneity' (Option D).
MES Jr. Grade • Paper-I
A system is said to be defined as non-causal, when -
A)
the output at the present depends on the input at an earlier time
B)
the output at the present does not depend on the factor of time at all
C)
the output at the present depends on the input at the current time
D)
the output at the present depends on the input at a time instant in the future
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'the output at the present depends on the input at an earlier time' (Option A).
MES Jr. Grade • Paper-I
Tellegen’s Theorem is valid for _________ network?
A)
linear or non-linear
B)
passive or active
C)
time variant or time invariant
D)
all of these
Based on established principles in the relevant subject area, the correct and most appropriate choice is 'all of these' (Option D).
MES Jr. Grade • Paper-I
An example of a discrete set of information/system is -
A)
the trajectory of the Sun
B)
data on a CD
C)
universe time scale
D)
movement of water through a pip
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'movement of water through a pip' (Option D).
MES Jr. Grade • Paper-I
A time invariant system is a system whose output -
A)
increases with a delay in input
B)
decreases with a delay in input
C)
remains same with a delay in input
D)
vanishes with a delay in input
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'remains same with a delay in input' (Option C).
MES Jr. Grade • Paper-I
How many types of dependent or controlled sources are there?
A)
1
B)
2
C)
3
D)
4
Based on established principles in the relevant subject area, the correct and most appropriate choice is '1' (Option A).
MES Jr. Grade • Paper-I
In Superposition theorem, while considering a source, all other voltage sources are?
A)
open circuited
B)
short circuited
C)
change its position
D)
removed from the circuit
Based on established principles in the relevant subject area, the correct and most appropriate choice is 'open circuited' (Option A).
MES Jr. Grade • Paper-I
Potential difference in electrical terminology is known as?
A)
Voltage
B)
Current
C)
Resistance
D)
Conductance
Based on established principles in the relevant subject area, the correct and most appropriate choice is 'Conductance' (Option D).
MES Jr. Grade • Paper-I
Which of the following signals are monotonic in nature?
A)
1-exp(-t)
B)
1-exp(sin(t))
C)
log(tan(t))
D)
cos(t)
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'cos(t)' (Option D).
MES Jr. Grade • Paper-I
Under normal conditions a diode conducts current when it is -
A)
reverse-biased
B)
forward-biased
C)
Avalanched
D)
Saturated
Based on established principles in the relevant subject area, the correct and most appropriate choice is 'forward-biased' (Option B).
MES Jr. Grade • Paper-I
For Tellegen’s Theorem to satisfy, the algebraic sum of the power delivered by the source is _________ than power absorbed by all elements.
A)
greater
B)
less
C)
equal
D)
greater than or equal
Based on established principles in the relevant subject area, the correct and most appropriate choice is 'greater than or equal' (Option D).
MES Jr. Grade • Paper-I
The boundary between p-type material and n-type material is called -
A)
a diode
B)
a reverse-biased diode
C)
a p-n junction
D)
a forward-biased diode
Based on established principles in the relevant subject area, the correct and most appropriate choice is 'a diode' (Option A).
MES Jr. Grade • Paper-I
The temperature coefficient of a thermistor -
A)
is positive
B)
is negative
C)
zero
D)
may be positive or negative depending on its composition
Based on established principles in the relevant subject area, the correct and most appropriate choice is 'is negative' (Option B).
MES Jr. Grade • Paper-I
Which capacitor-store higher amount of energy?
A)
Air capacitor
B)
Paper capacitor
C)
Mica capacitor
D)
Plastic film capacitor
Based on established principles in the relevant subject area, the correct and most appropriate choice is 'Mica capacitor' (Option C).
MES Jr. Grade • Paper-I
For the signal x(t) = a – b*exp(-ct), what is the steady state value, and the initial value?
A)
c, b
B)
c, c-a
C)
a, a-b
D)
b, a-b
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'c, b' (Option A).
