Tresbu Technologies 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

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