MES Departmental • 2023 • Paper-II
The advantage of star-connected supply system is that
A)
line current is equal to phase current
B)
two voltages can be used
C)
phase sequence can easily be changed
D)
it is a simple arrangement
Option B is correct: two voltages can be used.
MES Departmental • 2023 • Paper-II
Lenz’s law is related to
A)
thedirection of magnetic field
B)
thedirection of motion of conductor
C)
the direction of the induced current
D)
both (a) and (b)
Option C is correct: the direction of the induced current.
MES Departmental • 2023 • Paper-II
In an R-L series circuit, line current
A)
leads the applied voltage
B)
lags behind the applied voltage
C)
is in phase with the applied voltage
D)
none of the above
Option B is correct: lags behind the applied voltage.
MES Departmental • 2023 • Paper-II
In a transistor with normal bias
A)
the emitter junction has a low resistance
B)
the emitter junction is reversed biased
C)
the emitter junction offers high resistance
D)
none of the above
Option A is correct: the emitter junction has a low resistance.
MES Departmental • 2023 • Paper-II
Corona effect can be reduced by
A)
increasing conductor size
B)
decreasing conductor size
C)
decreasing conductor spacing
D)
none of the above
Option A is correct: increasing conductor size.
MES Departmental • 2023 • Paper-II
When the speed of an alternator is reduced by half, the generator e.m.f will become
A)
twice
B)
one-fourth
C)
half
D)
four times
Option C is correct: half.
MES Departmental • 2023 • Paper-II
The unit of capacitance is
A)
Farad
B)
Farad/m
C)
Farad/m2
D)
Farad/m3
Option A is correct: Farad.
MES Departmental • 2023 • Paper-II
According to Faraday’s Laws of Electromagnetic Induction, an e.m.f. is induced in a conductor whenever it
A)
lies in a magnetic field
B)
cuts magnetic field
C)
moves parallel to the direction of the magnetic field
D)
lies perpendicular to the magnetic flux
Option B is correct: cuts magnetic field.
MES Departmental • 2023 • Paper-II
Total minimum number of discs in a string of porcelain insulators for 132kV AC overhead transmission line is
A)
5
B)
6
C)
7
D)
8
Option D is correct: 8.
MES Departmental • 2023 • Paper-II
A thyristor can be brought to forward conducting state with gate-circuit open when the applied voltage exceeds
A)
the forward break-over voltage
B)
reverse breakdown voltage
C)
1.5V
D)
2.0 V
Option A is correct: the forward break-over voltage.
MES Departmental • 2023 • Paper-II
When 3-phase system is balanced, the neutral wire carries
A)
no current
B)
one-third of current for each phase
C)
half of current for each phase
D)
one-fourth of current for each phase
Option A is correct: no current.
MES Departmental • 2023 • Paper-II
The value of capacitive reactance increases as the
A)
value of capacitance increases
B)
frequency decreases
C)
voltage increases
D)
current increases
Option B is correct: frequency decreases.
MES Departmental • 2022 • Paper-II
A wall constructed to resist the pressure of an earth filling, is called
A)
Retaining wall
B)
Breast Wall
C)
Buttress
D)
Parapet wall
Correct option: A. The choice best matches the definition or rule asked in the question.
MES Departmental • 2022 • Paper-II
In brick masonry the bond produced by laying alternate headers and stretchers in each course is known as
A)
English bond
B)
double flemish bond
C)
zigzag bond
D)
single flemish bond
Correct option: A. The choice best matches the definition or rule asked in the question.
MES Departmental • 2022 • Paper-II
Name various types of fire fighting provisions that can be incorporated in the design of buildings with special reference to Aizawl.
MES Departmental • 2022 • Paper-II
To facilitate draining off rain water from coping, sills, sunshades etc, a groove is cut on the underside and this groove is known as
A)
throating
B)
drip course
C)
string course
D)
break course
Correct option: A. The choice best matches the definition or rule asked in the question.
MES Departmental • 2022 • Paper-II
The process of applying cement mortar under pressure through a nozzle is called
A)
pressurizing
B)
prestressing
C)
guniting
D)
none of the above
Correct option: C. The choice best matches the definition or rule asked in the question.
MES Departmental • 2022 • Paper-II
The pipe having minimum diameter in a domestic waste water disposal system is
A)
waste pipe
B)
soil pipe
C)
ventilation pipe
D)
anti siphonage pipe
Correct option: D. The choice best matches the definition or rule asked in the question.
MES Departmental • 2022 • Paper-II
Assuming full compaction, strength of concrete is inversely proportional to
A)
water-sand ratio
B)
water-plasticiser ratio
C)
water-cement ratio
D)
water-coarse aggregate ratio
Correct option: C. The choice best matches the definition or rule asked in the question.
MES Departmental • 2022 • Paper-II
What is the purpose of primer before painting?
A)
better adhesion of paint to the surface
B)
primarily for providing better colours
C)
more economical
D)
makes the paint surface washable
Correct option: A. The choice best matches the definition or rule asked in the question.
MES Departmental • 2022 • Paper-II
Why do we need waterproofing treatment for RCC flat roofs? Suggest waterproofing treatment for an RCC flat roof in Mizoram.
MES Departmental • 2022 • Paper-II
What is the purpose of using glass strips in concrete flooring?
A)
for aesthetic purpose
B)
for ease of construction
C)
to take care of contraction and expansion.
D)
all of the above
Correct option: D. The choice best matches the definition or rule asked in the question.
MES Departmental • 2022 • Paper-II
What design considerations will you give to an RCC building when designing in a high seismic zone like Mizoram?
MES Departmental • 2022 • Paper-II
What are the factors that affect the strength of cement?
MES Departmental • 2022 • Paper-II
Steel reinforcement in RCC structures is to provide
A)
tensile strength
B)
compressive strength
C)
bond strength
D)
overall strength
Correct option: A. The choice best matches the definition or rule asked in the question.
