Recap Day 1

Which thermodynamic process is characterized by no heat transfer to or from the system?

• Isobaric

• Isothermal

• Adiabatic

• Polytropic

What is the typical role of intercoolers in the compressor systems?

• To increase the temperature between stages

• To decrease the temperature between stages

• To lubricate the compressor

• To increase the pressure between stages

What does 'specific volume' indicate in the context of thermodynamic properties?

• The volume occupied by unit mass of a substance

• The pressure exerted by unit volume of a substance

• The temperature increase per unit volume

• The heat content per unit volume

A Rankine cycle operates with the following conditions:

• At the pump inlet (h1): 191.8 kJ/kg

• At the pump outlet (h2): 201.8 kJ/kg

• At the boiler outlet (h3): 3410 kJ/kg

• At the turbine outlet (h4): 2332.6 kJ/kg
  Calculate the Turbine Work (Wturbine):

• 10 kJ/kg

• 3208.2 kJ/kg

• 1077.4 kJ/kg

• 2140.8 kJ/kg

Location of Head end (HE) of a reciprocating compressor

• The part of the cylinder opposite the crankshaft

• The part of the cylinder near the crankshafts

• Near the engine (driver)

• Opposite the engine (driver)

Plate Valve: which part is responsible for allowing the plate to return to its closed position?

• Nut

• Springs

• Sealing lands

• Guide pins

Which of the following factors can cause damage to a valve in a reciprocating compressor?

• Liquid in the gas stream & Over lubrication

• Changes in process conditions

• Pulsation in the system

• Over lubrication

• All of the above

What is the purpose of measuring crankshaft web deflections in a reciprocating compressor?

• To determine the oil level in the crankcase

• To check the alignment of the crankshaft and prevent fatigue and breakage

• To measure the temperature of the compressor

• To assess the pressure of the compressed gas