10+ Chujachen Sss School Interview Questions and Answers

Surface finish symbols are used to indicate the type of surface finish required for a part.

• Surface finish symbols are typically represented by a series of lines, circles, and triangles.

• The symbols are used to indicate the type of surface finish required for a part, such as roughness, waviness, or lay.

• Examples of surface finish symbols include Ra for roughness average, Rz for roughness depth, and W for waviness.

1st and 3rd angle projection symbols are used in engineering drawings to indicate the orientation of the object being depicted.

• 1st angle projection symbol is a triangle with the number '1' inside and is used in Europe and Asia.

• 3rd angle projection symbol is a triangle with the number '3' inside and is used in North America.

• The symbol is usually placed in the lower right-hand corner of the drawing.

• The symbol indicates the direction of the view and the position of the object in...read more

Draw orthographic projections of given isometric view.

• Identify the isometric view and its orientation

• Draw the front, top, and right views using the correct scale and proportions

• Ensure that all lines are parallel and dimensions are accurate

• Label each view with the appropriate dimensions and notes

• Check for any errors or inconsistencies

Bernoulli's theorem states that potential energy decreases as kinetic energy increases in a fluid flow.

• Bernoulli's theorem is based on the conservation of energy in a fluid flow.

• Potential energy is the energy possessed by a fluid due to its position or elevation.

• Kinetic energy is the energy possessed by a fluid due to its motion.

• As the velocity of a fluid increases, its kinetic energy increases and its potential energy decreases.

• This relationship is described by Bernoulli's e...read more

Relative humidity is the ratio of actual water vapor present in the air to the maximum amount of water vapor air can hold at a given temperature.

• Absolute humidity is the actual amount of water vapor present in the air.

• Saturation humidity is the maximum amount of water vapor air can hold at a given temperature.

• Relative humidity and absolute humidity are measured in percentage while saturation humidity is measured in grams per cubic meter.

• Relative humidity is affected by temper...read more

Temperature loads in structures can be countered by using expansion joints, proper material selection, insulation, and thermal breaks.

• Use expansion joints to allow for thermal expansion and contraction without causing damage to the structure

• Select materials with low thermal expansion coefficients to minimize the effects of temperature changes

• Incorporate insulation to reduce the transfer of heat and minimize temperature fluctuations within the structure

• Use thermal breaks to cr...read more

Bracing arrangements are needed in structural engineering to provide stability and resist lateral forces.

• Bracing arrangements help to prevent buckling and sway in structures

• They are needed to resist lateral forces such as wind or earthquakes

• Different types of bracing arrangements include diagonal bracing, cross bracing, and portal bracing

• Bracing can be made from materials like steel, concrete, or timber

Lateral torsional buckling is a phenomenon in which a beam undergoes both lateral deflection and twisting under load, potentially leading to structural failure.

• Lateral torsional buckling can be countered by increasing the beam's stiffness through the use of larger sections or adding lateral bracing.

• Designing the beam with a more compact shape can also help prevent lateral torsional buckling.

• Using materials with higher yield strength can increase the beam's resistance to later...read more

Understanding steel connections and design for shear and moment forces is crucial for structural engineers.

• Steel connections transfer loads between beams, columns, and other structural members.

• Shear connections resist forces parallel to the plane of the connection, while moment connections resist forces perpendicular to the plane.

• Common types of shear connections include bolted connections, welded connections, and shear tabs.

• Moment connections include moment-resisting frames,...read more

Load calculation is typically done as per the relevant building codes, such as American or European codes.

• Load calculation is based on the specific requirements and regulations outlined in the relevant building codes.

• American codes, such as ASCE 7, provide guidelines for load combinations, dead loads, live loads, snow loads, wind loads, seismic loads, etc.

• European codes, such as Eurocode, also provide similar guidelines for load calculations based on regional factors and desi...read more

Gear ratio is the ratio of the number of teeth on the driven gear to the number of teeth on the driving gear.

• Count the number of teeth on the driving gear (gear attached to the motor) and the driven gear (gear attached to the load)

• Divide the number of teeth on the driven gear by the number of teeth on the driving gear to get the gear ratio

• For example, if the driving gear has 20 teeth and the driven gear has 40 teeth, the gear ratio is 2:1

Pulley provides mechanical advantage by reducing the amount of force required to lift a load.

• A pulley system can have multiple pulleys to increase mechanical advantage

• The mechanical advantage of a pulley is equal to the number of supporting ropes or cables

• Pulleys can change the direction of the force applied to lift a load

• Examples of pulleys include cranes, elevators, and flagpoles

Tolerances and fits are important in product development. Tolerances refer to the allowable variation in dimensions, while fits describe the degree of interference between mating parts.

• Tolerances can be classified as either unilateral or bilateral

• Fits can be classified as clearance, interference, or transition

• Examples of fits include press fit, slip fit, and force fit

Shear critical areas are regions in a structure where shear forces are significant and can lead to failure.

• One shear critical area occurs when the shear force is maximum at a single point or section along the member.

• Two shear critical areas occur when the shear force is significant at two or more points or sections along the member.

• Shear critical areas are important to identify in structural design to ensure the safety and stability of the structure.

• Examples include beams wit...read more