30+ Deputy Engineer Interview Questions and Answers

At zero modulation index, the transmitted current will be zero. At modulation index m, the transmitted current will be proportional to m.

• At zero modulation index, Ic is the transmitter and the transmitted current is zero.

• At modulation index m, the transmitted current will be proportional to m.

• The relationship between modulation index and transmitted current can be expressed as: I_transmitted = m * Ic.

Pressure is the force applied on a surface, while stress is the internal resistance of a material to deformation.

• Pressure is an external force per unit area, while stress is an internal force per unit area.

• Pressure can be measured using instruments like pressure gauges, while stress is calculated using formulas.

• Pressure is typically exerted on fluids or gases, while stress is experienced by solid materials.

• Examples of pressure include atmospheric pressure, blood pressure, and...read more

Considerations for selecting materials for mechanical components include strength, durability, corrosion resistance, cost, and compatibility with other materials.

• Strength: Ensure the material can withstand the required loads and stresses.

• Durability: Choose a material that will not degrade or wear out quickly over time.

• Corrosion resistance: Select a material that is resistant to corrosion if the component will be exposed to harsh environments.

• Cost: Balance the cost of the mate...read more

Various tests are conducted on cement to ensure quality and performance.

• Fineness test to measure the particle size of cement

• Setting time test to determine the time taken for cement to set

• Soundness test to check for volume stability

• Compressive strength test to assess the strength of cement

• Chemical analysis to determine the composition of cement

The most commonly used refrigerant at this time is R-410A, which is a hydrofluorocarbon (HFC) blend.

• R-410A is a popular choice due to its high energy efficiency and environmental friendliness.

• It is commonly used in air conditioning systems and heat pumps.

• R-410A is a hydrofluorocarbon (HFC) blend, which means it does not contain chlorine and is less harmful to the ozone layer compared to older refrigerants like R-22.

Battery work involves designing, testing, and maintaining batteries for various applications.

• Designing battery systems for specific requirements

• Testing batteries for performance and safety

• Maintaining batteries to ensure longevity and efficiency

Stainless steel is a type of steel alloy with a minimum of 10.5% chromium content, which gives it its corrosion-resistant properties.

• Stainless steel contains at least 10.5% chromium, which forms a protective oxide layer on the surface.

• Other common elements in stainless steel include nickel, molybdenum, and carbon.

• Different grades of stainless steel have varying compositions for specific applications.

• Examples of stainless steel grades are 304, 316, and 430.

The code of overlap of steel is IS:800-2007.

• The code of overlap of steel is specified in IS:800-2007.

• The code provides guidelines for the design and construction of steel structures.

• It covers aspects such as material properties, design considerations, and construction practices.

Types of dams include gravity dams, arch dams, and embankment dams. Hydraulic losses in a pipeline can be calculated using the Darcy-Weisbach equation.

• Types of dams: gravity dams (e.g. Hoover Dam), arch dams (e.g. Glen Canyon Dam), embankment dams (e.g. Three Gorges Dam)

• Hydraulic losses formula for pipeline: Darcy-Weisbach equation - h_f = f * (L/D) * (V^2/2g)

• Where h_f is the head loss, f is the Darcy-Weisbach friction factor, L is the length of the pipe, D is the diameter of...read more

The least count of a vernier caliper is 0.02 mm and the least count of a screw gauge is 0.01 mm.

• Vernier caliper least count: 0.02 mm

• Screw gauge least count: 0.01 mm

Admixtures are chemicals added to concrete or mortar to modify its properties.

• Admixtures can improve workability, durability, and strength of concrete.

• They can reduce water content, increase setting time, or enhance color.

• Examples include water-reducing admixtures, air-entraining admixtures, and accelerating admixtures.

A processor block diagram shows the components and their interconnections.

• A processor consists of an arithmetic logic unit (ALU), control unit, and registers.

• The ALU performs arithmetic and logic operations.

• The control unit manages the flow of data and instructions.

• Registers store data and instructions temporarily.

• The processor communicates with other components via buses.

• Examples of processors include Intel Core i7, AMD Ryzen, and ARM Cortex-A53.

Preventive maintenance plan includes Why Why Why analysis to identify root cause of problems and prevent future occurrences.

• Preventive maintenance plan is a proactive approach to maintenance that involves regularly scheduled inspections, repairs, and replacements to prevent equipment failure.

• Why Why Why analysis is a technique used to identify the root cause of a problem by asking 'why' multiple times until the underlying cause is revealed.

• By incorporating Why Why Why analysi...read more

Compressors are mechanical devices that increase the pressure of a gas by reducing its volume.

• There are two main types of compressors: positive displacement and dynamic.

• Positive displacement compressors work by trapping a volume of gas and then reducing its volume to increase pressure.

• Examples of positive displacement compressors include reciprocating, rotary screw, and scroll compressors.

• Dynamic compressors work by accelerating the gas to high velocity and then converting th...read more

Shuttering level can be checked using a spirit level to ensure it is horizontal or vertical.

• Use a spirit level to check if the shuttering is horizontal or vertical

• Ensure the bubble in the spirit level is centered to indicate level

• Adjust the shuttering as needed to achieve the correct level

• Check multiple points along the shuttering to ensure consistency

AC cycle works by using a refrigerant to absorb heat from inside a space and release it outside, creating a cooling effect.

• AC cycle starts with the refrigerant absorbing heat from inside the space, cooling the air.

• The refrigerant then moves to the compressor where it is pressurized and heated.

• Next, the hot refrigerant moves to the condenser coil where it releases heat to the outside air.

• The refrigerant then goes through an expansion valve, reducing its pressure and temperatur...read more

Campani name refers to the name of a type of bell foundry in Italy known for producing high-quality bells.

• Campani name is a term used in the context of bell-making in Italy.

• It is associated with producing bells of exceptional quality and craftsmanship.

• An example of a famous Campani name is the Pontifical Foundry Marinelli in Agnone, Italy.

Batteries are used in vehicles to power various electrical components such as lights, radio, and engine starting.

• Batteries provide the necessary electrical energy to start the vehicle's engine.

• They power essential components like lights, radio, and air conditioning.

• Electric vehicles rely entirely on batteries for propulsion.

• Batteries store energy generated by the vehicle's alternator for later use.

Optimized code for finding pairs in an array that sum up to a given value

• Use a hash table to store the difference between the target value and each element in the array

• Iterate through the array and check if the current element is in the hash table

• If it is, then a pair with the target sum has been found

• Time complexity can be reduced to O(n) using this approach

Grade of concrete used nowadays varies depending on the specific requirements of the project.

• Grade of concrete is specified by its compressive strength in megapascals (MPa). Common grades include 20, 25, 30, 35, and 40 MPa.

• Higher grade concrete is typically used for structures requiring higher strength, such as high-rise buildings or bridges.

• Lower grade concrete may be suitable for less demanding applications, such as residential construction or pavements.

Spark gap can be calculated using the formula: Spark Gap = (Voltage x Distance) / Pressure

• Calculate the voltage applied across the spark gap

• Measure the distance between the electrodes

• Determine the pressure in the gap

• Use the formula: Spark Gap = (Voltage x Distance) / Pressure

Compressive strength of concrete is a measure of its ability to withstand loads or stress.

• Compressive strength is typically measured in pounds per square inch (psi) or megapascals (MPa).

• Higher compressive strength indicates a more durable and strong concrete mix.

• Factors affecting compressive strength include water-cement ratio, curing conditions, and aggregate quality.

A block diagram of a communication system shows the components and their connections for transmitting and receiving information.

• Components include transmitter, channel, receiver, and noise source

• Transmitter converts message signal into a form suitable for transmission

• Channel carries the signal from transmitter to receiver

• Receiver converts the received signal back into the original message signal

• Noise source introduces unwanted disturbances in the communication process

Merge sort algorithm can be modified to sort an array of strings in descending order.

• Modify the comparison function to sort in descending order

• Use the standard merge sort algorithm

• Ensure that the merge function is also modified to merge in descending order

EDM stands for Electrical Discharge Machining, a non-traditional machining process used to remove material from a workpiece using electrical discharges.

• EDM uses electrical discharges between an electrode and a workpiece to erode material.

• There are two main types of EDM: sinker EDM (also known as die sinking EDM) and wire EDM.

• EDM is commonly used in manufacturing industries for making molds, dies, and other precision parts.

• EDM can achieve high levels of accuracy and intricate ...read more

Sieve analysis is a method used to determine the particle size distribution of aggregates.

• Sieve analysis involves passing a sample of aggregate through a series of sieves with progressively smaller openings.

• The amount of material retained on each sieve is weighed and compared to the total sample weight to determine the percentage passing through each sieve.

• The results of sieve analysis are used to classify aggregates for use in construction projects.

• Sieve analysis helps ensur...read more

Reinforcement details for slab include types of reinforcement, spacing, cover, and lap lengths.

• Types of reinforcement used in slabs include mesh, rebar, and fibers.

• Spacing of reinforcement bars should be as per design specifications to ensure structural integrity.

• Cover refers to the distance between the outer surface of the concrete and the reinforcement bars.

• Lap lengths are important to ensure proper transfer of loads between adjacent reinforcement bars.

• Proper detailing of r...read more

Column width varies depending on the application and design requirements.

• Column width in print media is typically around 50-60 characters per line.

• In web design, column width can vary greatly depending on screen size and layout.

• For coding, recommended line length is often around 80 characters for readability.

Unit weight of steel is typically around 7850 kg/m^3.

• Unit weight of steel is commonly expressed in kg/m^3.

• The unit weight of steel can vary depending on the type of steel being used.

• For example, the unit weight of mild steel is approximately 7850 kg/m^3.

Slump test is a concrete consistency test to measure the workability of fresh concrete.

• Slump test is performed by filling a mold with fresh concrete, then removing the mold and measuring the amount of slump or settlement.

• The slump value indicates the workability of the concrete - higher slump means more workable concrete.

• Different types of slumps include true slump, shear slump, and collapse slump.

• Slump test is important to ensure the concrete can be easily placed and compact...read more

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