MES Departmental • 2026 • Paper-I
The security deposit by the consumer at the time of service connection is normally called:
A)
Load Security
B)
Connection fee
C)
Billing security
D)
Service charges
Option A is correct: Load Security.
MES Departmental • 2026 • Paper-I
The minimum operating safety distance for live line of 11kV/22kV/33kV as per safety manual issued by P&E Department is:
A)
Two feet
B)
Five feet
C)
Three Feet
D)
Four Feet
Option C is correct: Three Feet.
MES Departmental • 2026 • Paper-I
The nominal period between two consecutive meter reading dates. It may be monthly or any other period as may be adopted by the Distribution Licensee as per the tariff order is called:
A)
Billing period
B)
Monthly bill
C)
Billing date
D)
Meter reading date
Option A is correct: Billing period.
MES Departmental • 2026 • Paper-I
Which of the following is not demand control?
A)
Consumer Load Management initiated by Users.
B)
Consumer Load reduction by Disconnection initiated by Users
C)
Consumer Load reduction instructed by the Load Despatch Centre
D)
The scheduling of various types of transactions with the electric utilities over the interconnecting Transmission Lines
Option D is correct: The scheduling of various types of transactions with the electric utilities over the interconnecting Transmission Lines.
MES Departmental • 2026 • Paper-I
Which one of the following work is not included in annual operation and maintenance of Deposited Works as per General condition for execution and maintenance of Deposit works?
A)
Annual painting
B)
Extension of lines
C)
Jungle cutting
D)
Topping up of Transformer oil.
Option B is correct: Extension of lines.
MES Departmental • 2026 • Paper-I
A shutdown of a part of the system resulting in failure of power supply, either from external connections or from the healthy part of the system.
A)
Partial Shutdown
B)
Direct Shutdown
C)
Emergency shutdown
D)
Half Shutdown
Option A is correct: Partial Shutdown.
MES Departmental • 2026 • Paper-I
A State whose combined installed capacity of solar and wind generating stations under the control area of the State is 1000 MW or more is declared as:
A)
Renewable producer
B)
High Renewable State
C)
Renewable generator
D)
Renewable rich State
Option D is correct: Renewable rich State.
MES Departmental • 2026 • Paper-I
A point at which the consumer’s installation and/or apparatus are connected to distribution licensee’s distribution system.
A)
Pole connection
B)
Installation connection
C)
Point of contact
D)
Connected point
Option C is correct: Point of contact.
MES Departmental • 2026 • Paper-I
The Center who Control Load of Power within Mizoram is:
A)
SLDC
B)
PGCI
C)
NERLDC
D)
NLDC
The correct answer is SLDC (State Load Despatch Centre).
1. **SLDC (State Load Despatch Centre):** In the Indian power sector hierarchy, the SLDC is the apex body at the state level responsible for the real-time operation, monitoring, and control of the state's power grid. It ensures the balance between power generation and demand (load) within the state boundaries to maintain grid stability and frequency. For Mizoram, the SLDC manages the load flow within the state's network.
2. **NLDC (National Load Despatch Centre):** This is the highest level of control in India, managing the national grid and coordinating between different regions. It does not control the internal load of a specific state like Mizoram.
3. **NERLDC (North Eastern Regional Load Despatch Centre):** This center coordinates power flow and stability across the entire North Eastern region (including Mizoram, Manipur, Nagaland, etc.). While it oversees the region, the specific internal load control of Mizoram is delegated to the state's own SLDC.
4. **PGCI:** This is not a standard regulatory or control body for load despatch in the Indian power grid framework (likely a distractor option).
MES Departmental • 2026 • Paper-I
In an Overall Standard of performance, the time limit for replacement of damaged distribution transformers in urban areas is:
A)
10 Hours
B)
20 Hours
C)
18 Hours
D)
24 Hours
Option D is correct: 24 Hours.
MES Departmental • 2026 • Paper-I
The highest contracted load permissible as per JERC Supply code for Three Phase LT Domestic Consumer is:
A)
8 kW
B)
50 kW
C)
10 kW
D)
40 kW
Option A is correct: 8 kW.
MES Departmental • 2026 • Paper-I
The load in kW or kVA, which the licensee has agreed to supply from time to time subject to the governing terms and conditions in the absence of an Agreement between the Distribution licensee and the consumer is called:
A)
Approved Load
B)
Sanctioned Load
C)
Connected load
D)
Based Load
Option B is correct: Sanctioned Load.
MES Departmental • 2026 • Paper-I
The main function of Potential Transformer is:
A)
Reduce high voltage to measurable value
B)
Increase low voltage to measurable value
C)
Reduce high current to measurable value
D)
Increase low current to measurable value
Option A is correct: Reduce high voltage to measurable value.
MES Departmental • 2026 • Paper-I
The Works executed by P&E Department outside the normal budget/provision, the cost of which is borne by party/intending consumer, out of his own resource, which will benefit the specific consumer or party other than public in general is described as:
A)
Deposit Work
B)
Outside work
C)
Private Work
D)
Non-Governmental Work
Option A is correct: Deposit Work.
MES Departmental • 2026 • Paper-I
The registration of consumer call after the first response shall be completed within:
A)
7 minutes
B)
30 minutes
C)
10 Minutes
D)
45 minutes
Option C is correct: 10 Minutes.
MES Departmental • 2026 • Paper-I
A Standard GRID frequency all over India is:
A)
49 Hertz
B)
50 Hertz
C)
51 Hertz
D)
49.5 Hertz
Option B is correct: 50 Hertz.
MES Departmental • 2026 • Paper-I
A seller in case of a generating station based on other than wind or solar or hybrid of wind-solar resources as defined by Central Electricity Regulatory Commission (Deviation Settlement Mechanism and Related Matters) Regulations is:
A)
Electric Seller
B)
Hydro Seller
C)
General Seller
D)
Whole seller
Option C is correct: General Seller.
MES Departmental • 2026 • Engineering Paper-II
Why are fins generally made as thin as possible for heat transfer?
A)
To reduce the total weight
B)
To accommodate a larger number of fins in a given space
C)
To increase the width of the profile
D)
To increase structural strength
Option B is correct: To accommodate a larger number of fins in a given space.
MES Departmental • 2026 • Engineering Paper-II
What is a major financial benefit of applying work study techniques in an organization?
A)
It increases overhead expenditures.
B)
It minimizes product costs by eliminating waste and inefficiencies.
C)
It leads to an immediate increase in raw material consumption.
D)
It eliminates the need to pay employee bonuses
Option B is correct: It minimizes product costs by eliminating waste and inefficiencies..
MES Departmental • 2026 • Engineering Paper-II
Which type of fin profile in heat transfer system yields the maximum heat flow per unit weight?
A)
Straight rectangular fin
B)
Straight triangular fin
C)
Parabolic fin
D)
Pin fin
Option B is correct: Straight triangular fin.
MES Departmental • 2026 • Engineering Paper-II
If you increase the distance ‘a’ between the four test pins in a Wenner test setup, what practical change occurs?
A)
You measure soil resistivity at a deeper layer of the earth.
B)
The measured test voltage increases dramatically.
C)
You measure only the dry top soil layer.
D)
The meter automatically runs out of scale range.
Option A is correct: You measure soil resistivity at a deeper layer of the earth..
MES Departmental • 2026 • Engineering Paper-II
Before energizing a power transformer for the first time during commissioning, what does a “BDV test” evaluate?
A)
Bulk Density Verification of the transformer core steel
B)
Breakdown Voltage of the transformer insulating oil
C)
Balanced Direct Voltage of the control batteries
D)
Bushing Displacement Vector alignment
Option B is correct: Breakdown Voltage of the transformer insulating oil.
MES Departmental • 2026 • Engineering Paper-II
If the load on the engine increases, how does the governor respond?
A)
It increases the speed of the flywheel
B)
It stores more kinetic energy
C)
It increases the supply of the working fluid (fuel)
D)
It decreases the supply of the working fluid (fuel)
Option C is correct: It increases the supply of the working fluid (fuel).
MES Departmental • 2026 • Engineering Paper-II
Why is AC used instead of DC for measuring ground soil resistivity and earth resistance?
A)
AC travels faster in soil
B)
AC prevents soil electrolytic polarization and stray DC bias interference
C)
DC voltage cannot sink into deep earth
D)
AC instruments consume less battery power
Option B is correct: AC prevents soil electrolytic polarization and stray DC bias interference.
MES Departmental • 2026 • Engineering Paper-II
What critical maintenance activity prevents “contact welding” or local hotspots in outdoor isolator blades?
A)
Painting the contact surfaces with anti-corrosive zinc paint.
B)
Applying a thin layer of conductive, oxidation-inhibiting petroleum jelly or grease to the contacts.
C)
Increasing the spring tension until the blade cannot be moved manually.
D)
Washing the contacts thoroughly with high-pressure water while energized.
Option B is correct: Applying a thin layer of conductive, oxidation-inhibiting petroleum jelly or grease to the contacts..
