MES Departmental • 2025 • Engineering Paper-II
The advantage of neutral earthing is
A)
Freedom from persistent arcing grounds
B)
Over voltages due to lightning can be discharged to earth
C)
Simplified design earth fault protection
D)
All of the above
Option D is correct: All of the above.
MES Departmental • 2025 • Engineering Paper-II
Which of the following uses natural convection air-cooled condensers?
A)
High capacity room air conditioners
B)
Industrial air conditioners
C)
Domestic refrigerators
D)
High capacity water coolers
Option C is correct: Domestic refrigerators.
MES Departmental • 2025 • Engineering Paper-II
H.R.C. fuse, as compared to a rewirable fuse, has
A)
no ageing effect
B)
high speed of operation
C)
high rupturing capacity
D)
all of the above
Option D is correct: all of the above.
MES Departmental • 2025 • Engineering Paper-II
The condemning of old and unserviceable Machinery & equipment must be of the following
A)
The Machineries must be over the life span fixed by condemnation board of Mizoram Govt.
B)
The Machineries must be off-road
C)
The Machineries must be beyond economical repair
D)
All of the above
In the context of Asset Management and Government Financial Rules (GFR) applicable to departments like the PWD in Mizoram, 'condemnation' is the formal process of declaring an asset unfit for further use. For machinery and equipment to be condemned, they typically must meet several criteria to ensure public funds are not wasted:
1. Life Span (Option a): Assets are generally evaluated based on the prescribed 'economic life' or 'useful life' fixed by the government or a designated condemnation board. If an asset has exceeded this period, it is a primary candidate for condemnation.
2. Operational Status (Option b): If machinery is 'off-road' (non-functional) and cannot be brought back into service, it is considered unserviceable.
3. Economic Viability (Option c): The most critical technical criterion is whether the asset is 'beyond economical repair' (BER). This means the cost of repairing the equipment would be too high relative to its current value or the cost of a new replacement.
Since all three conditions (age/life span, operational failure, and lack of economic viability for repair) are standard grounds for the condemnation of government machinery, option 'd' is the correct choice.
MES Departmental • 2025 • Engineering Paper-II
In which operation, motion of job is rotary and motion of cutting tool is forward translating?
A)
turning
B)
planning
C)
milling
D)
all of the mentioned
Option D is correct: all of the mentioned.
MES Departmental • 2025 • Engineering Paper-II
What is the most high precision measuring system? Mention its uses?
MES Departmental • 2025 • Engineering Paper-II
Which of the following of the refrigerant is used as a refrigerant in Lithium Bromide Absorption Refrigeration system?
A)
Lithium Bromide
B)
Hydrogen
C)
Water
D)
Ammonia
Option C is correct: Water.
MES Departmental • 2025 • Engineering Paper-II
Which of the following is the example of cutting shaping process?
A)
knurling
B)
forging
C)
pressing
D)
drawing
Option A is correct: knurling.
MES Departmental • 2025 • Engineering Paper-II
Which of the following refers to the term C.O.P. of refrigeration?
A)
Cooling for Performance
B)
Coefficient of Performance
C)
Capacity of Performance
D)
Co-efficient of Plant
Option B is correct: Coefficient of Performance.
MES Departmental • 2025 • Engineering Paper-II
What is the primary purpose of a shadow projector?
A)
To measure the temperature of an object
B)
To project images onto a screen for observation and measurement
C)
To measure the electrical conductivity of an object
D)
To create a 3D model of an object
Option B is correct: To project images onto a screen for observation and measurement.
MES Departmental • 2025 • Engineering Paper-II
Which component of a D G set is responsible for converting mechanical energy into electrical energy?
A)
Diesel engine.
B)
Fuel tank.
C)
Alternator.
D)
Cooling system.
Option C is correct: Alternator..
MES Departmental • 2025 • Engineering Paper-II
Which of the following is the example of multi point cutting tool?
A)
milling cutter
B)
broaching tool
C)
both milling utter and broaching tool
D)
none of the mentioned
Option C is correct: both milling utter and broaching tool.
MES Departmental • 2025 • Engineering Paper-II
What is the primary function of a gauge in metrology?
A)
To determine the physical properties of a material
B)
To measure the dimensions of a part and check if it meets design specifications
C)
To measure the temperature of an object
D)
To measure the speed of an object
Option B is correct: To measure the dimensions of a part and check if it meets design specifications.
MES Departmental • 2025 • Engineering Paper-II
What is the purpose of a circuit breaker?
A)
To convert electrical energy into other forms.
B)
To provide a temporary solution for low voltage.
C)
To protect the electrical system from overloads and short circuits.
D)
To reduce the voltage of the incoming electricity.
Option C is correct: To protect the electrical system from overloads and short circuits..
MES Departmental • 2025 • Engineering Paper-II
Which of the following is NOT a common method for measuring surface finish?
A)
Touch inspection
B)
Optical inspection
C)
Scratch inspection
D)
Weight inspection
Option D is correct: Weight inspection.
MES Departmental • 2025 • Engineering Paper-II
Which of the following is NOT a type of measuring instrument?
A)
Digital caliper
B)
Vernier caliper
C)
Screw gauge
D)
Linear potentiometer
Option D is correct: Linear potentiometer.
MES Departmental • 2025 • Engineering Paper-II
Purpose of backup protection is
A)
to increase the speed.
B)
to increase a reach.
C)
to leave no blind spot.
D)
to guard against failure of primary.
Option D is correct: to guard against failure of primary..
MES Departmental • 2025 • Engineering Paper-II
What are the important tests to be carried out in Internal Electrification works and how is it to be done?
MES Departmental • 2025 • Engineering Paper-II
Load torques can be classified into how many types?
A)
Three
B)
Two
C)
Four
D)
Five
Option A is correct: Three.
MES Departmental • 2025 • Engineering Paper-II
A lighting scheme uses a high CRI light source. What does this mean?
A)
The light source has a high luminous output
B)
The light source is more energy-efficient
C)
The light source accurately reproduces colors
D)
The light source is less expensive
Option C is correct: The light source accurately reproduces colors.
MES Departmental • 2025 • Engineering Paper-II
Which of the following is an example of non cutting shaping process?
A)
turning
B)
forging
C)
drilling
D)
milling
Option B is correct: forging.
MES Departmental • 2025 • Engineering Paper-II
Define co-efficient of utilization, and list out anything that effect the values of co-efficient Of Utilization.
MES Departmental • 2025 • Engineering Paper-II
What is Air Conditioning?
A)
Air Conditioning is the process of adding heat and increasing the humidity
B)
Air Conditioning is the process of removing heat and controlling the humidity of air in a closed space
C)
Air conditioning is the process of controlling air moisture in an open area by adding heat
D)
None of the mentioned
Option B is correct: Air Conditioning is the process of removing heat and controlling the humidity of air in a closed space.
MES Departmental • 2025 • Engineering Paper-II
What is the purpose of regular maintenance of a D G set?
A)
To extend its lifespan.
B)
To reduce fuel consumption.
C)
To increase its output voltage.
D)
To improve its aesthetics.
Option A is correct: To extend its lifespan..
MES Departmental • 2025 • Engineering Paper-II
How many types of Internal Electrical wiring are approved by MPWD? Suggest the type of wiring to be used in Modern Building (RCC Building).
