21⟩ Tell me what is the percentage of carbon present in pig iron?
Carbon content is generally 3.5-4.5%.
“Design Engineering Frequently Asked Questions in various Design Engineer job interviews by interviewer. The set of questions are here to ensures that you offer a perfect answer posed to you. So get preparation for your new job interview”
Carbon content is generally 3.5-4.5%.
The advantage of reheater is that it significantly increases the thrust; which is a prime reason for its use in gas turbines.
The six stroke engine is based on the concept of four stroke engine but built with an intention of improvising the efficiency in reducing emission. Every cycle of a four stroke engine involves the upward and downward movement of the piston which happens twice in the chamber, resulting in four total strokes and one of which is the power stroke which provides the torque to move the vehicle. A six stroke engine works similarly except that there are two power strokes.
According to the Hess law the energy transfer is simply independent of the way being followed. If the reactant and the product of the whole process are the same then same amount of energy will be dissipated or absorbed.
The major difference is that a projectile has no motor or a rocket on it, due to which the momentum is given to it as it is launched. A pen thrown across a room is a classic example of a projectile motion. On the other hand, a rocket or missile has a motor on it which helps in accelerating while moving. This helps in resisting other forces such as gravity. A projectile does not have any specific shape, it is a point mass, whereas rocket has a particular shape having its center of gravity situated at a particular point on its body. Thus rocket motion comes under kinetics and projectile comes under kinematics.
Pump is a device that is used to transfer fluid from one place to another place which means it develops flow not pressure.
Otto cycle can be explained by a pressure volume relationship diagram. It shows the functioning cycle of a four stroke engine. The cycle starts with an intake stroke, closing the intake and moving to the compression stroke, starting of combustion, power stroke, heat exchange stroke where heat is rejected and the exhaust stroke. It was designed by Nicolas Otto, a German engineer.
A mechanism is an assembly of different parts which perform a complete motion and is often part of a machine.
Everything from customer analysis, size and shape, to branding and packaging make up the entire product. A product is the culmination of its design, effectiveness, and branding. You cannot forget the cohesive pieces of the puzzle that need to come together to attract the maximum amount of customers.
Personal Statement. It is something that gives an informative background about an individual.
A Process Flow Diagram is a user friendly, simplified sketch which illustrates general plant streams, major equipments and key central loops and shows the relationship between major components in the system. By using symbols to identify instruments and vessels it describes the primary flow course. They also provide e detail of mass/energy balance data along with stream composition and physical properties, however do not show minor components.
The assumptions made in the theory of simple bending are:
☛ > The material of the beam is homogeneous this implies that it is uniform in density, strength and have isotropic properties meaning possessing same elastic property in all directions.
☛ > Even after bending the cross section of the beam remains constant.
☛ > During the initial stages the beam is straight and unstressed.
☛ > All the stresses in the beam are within the elastic limit of its material.
☛ > The layers of the beam are free to contract and expand longitudinally and laterally
☛ > On any cross section the perpendicular resultant force of the beam is zero.
☛ > Compared to the cross-sectional dimension of the beam the radius of curvature is very large.
1 BTU=1055.06 Joules
Springs can be broadly classified into the following types:
☛ > Helical Springs: These springs as their name suggests are in coil form and are in the shape of helix. The primary purpose of such springs are to handle compressive and tensile loads. They can be further classified into two types: compression helical spring and tension helical spring each having their own unique areas of application./
☛ > Conical and volute springs: Both these spring types have specialized areas of usage where springs with adaptable rate according to the load is required. In case of conical springs they are wound so as to have a uniform pitch while on the other hand volute springs are wound in a slight manner of a parabloid.
☛ > Torsion Springs: The characteristics of such springs is that they tend to wind up by the load. They can be either helical or spiral in shape. These types of springs are used in circuit breaker mechanisms.
☛ > Leaf springs: These types of springs are comprised of metal plates of different lengths held together with the help of bolts and clamps. Commonly seen being used as suspensions for vehicles.
☛ > Disc Springs: As the name suggests such types of springs are comprised of conical discs held together by a bolt or tube.
☛ > Special Purpose Springs: These springs are all together made of different materials such as air and water.
Smallest volume over which measurements can be made that will yield a representative of the whole.
It is a 3-D drawing used by draftsmen, architects etc
Addressing cooling is vital in a product that outputs heat. The issue is that overcooling can reduce capacity and can waste excess energy. A great engineer will take this into account in the design process to ensure that you do the most with the least resources.
A speedometer helps measure the speed in the car.
The compression ratio of diesel engine is higher than the petrol engine, the reason for producing higher torque. The efficiency of diesel engine increases with load. Diesel produces slow energy on burning of fuel and the efficiency of the engine increases with load which is why diesel engine is suitable and largely used for heavy vehicles.
The advantages of using a chain drives are:
☛ > In a chain drive no slip occurrence takes place.
☛ > The chains take less space as compared to rope or belts as they are made of metal and offer much strength.
☛ > The chain drives can be used at both short and long ranges and they offer a high level of transmission efficiency.
☛ > Chain drives can transmit more load and power as compared to belts.
☛ > A very high speed ratio can be maintained in one step of chain drives.
☛ Some of the cons of using a chain drive are:
☛ > The cost of producing chain drives is higher as compared to that of belts.
☛ > The chain drives must be serviced and maintained at regular intervals and henceforth their cost of ownership is high comparatively.