Flowserve Sanmar Engineer Trainee Interview Questions and Answers

A ladder diagram is a graphical programming language used to represent the control logic of industrial processes.

• A ladder diagram consists of rungs, which represent individual control circuits.

• Each rung consists of input contacts, output coils, and other control elements.

• To turn on the pump, an input contact representing the pump start signal should be connected to an output coil representing the pump motor.

• To turn off...read more

A chiller is a machine that removes heat from a liquid via a vapor-compression or absorption refrigeration cycle.

• The function of a chiller is to cool down a liquid or air by removing heat from it.

• Chillers are commonly used in air conditioning systems, industrial processes, and refrigeration.

• They work by circulating a refrigerant that absorbs heat from the liquid or air and then releases it outside.

• Chillers can be used ...read more

The type of gas used in a chiller is typically a refrigerant gas.

• Refrigerant gases are used in chillers to absorb heat from the surroundings and cool the air or water.

• Common refrigerant gases used in chillers include R-134a, R-410A, and ammonia.

• The choice of refrigerant gas depends on factors such as efficiency, environmental impact, and safety.

• Refrigerant gases undergo a cycle of compression, condensation, expansion, ...read more

The cooling substance used for cooling exchange in a chiller is typically a refrigerant.

• Refrigerants are substances that absorb heat from the surroundings and transfer it to another location.

• Common refrigerants used in chillers include R-134a, R-410A, and ammonia.

• Refrigerants undergo phase changes from liquid to gas and back to liquid during the cooling process.

• They have low boiling points and high heat transfer proper...read more