PSC2 Test Your Knowledge

  • Test Your Knowledge

    Are you Pump System Certification (PSC) Level 2 Ready?
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  • The following sample quiz contains 10 questions that represent the type of questions featured on the PSC Level 2 Exam.  This quiz has been designed to help you gauge your understanding and knowledge level of the PSC Level 2 content.

    Visit our training website for additional information on the PSC Level 2 training and preparation resources.

    Provide your name and email and select next to begin the PSC Level 2 Test Your Knowledge Quiz.

  • PSC2 Knowledge Quiz

  • Download the Formula Reference Sheet.

  • 1. What is the total gauge pressure for the following ?

    • Flow rate is 700 gpm (160 m3/h),
    • Pressure is 50 psig (345 kPa)
    • Pipe velocity 11.4 ft/s (3.5 m/s)
    • Fluid density is 100 lbm/ft3 (1600 kg/m3)
    • Atmospheric pressure is 14.5 psi (100 kPa)
    • Acceleration due to gravity is 32.2 ft/s2 (9.81 m/s2)

  • 2. What is the NPSHA for a rotodynamic pump operating in a closed system with the following related conditions:  

    • Liquid level above pump centerline (Impeller datum) 15ft (4.6 m);
    • Suction vessel pressure at top of liquid level 10 psia (69 kPa,a);
    • Head loss between suction vessel and pump suction flange 2.0 ft (0.6 m);
    • Liquid vapor pressure 5.4 psia (37.2 kPa,a);
    • Atmospheric pressure 14.7 psia (101 kPa,a);
    • Liquid specific gravity 0.8;
    • Suction pipe velocity entering pump 10 ft/s (3.05 m/s);
    • Pump flow rate 2500 gpm (568 m3/h);
    • Discharge pressure 50 psig (345 kPa)
  • 3. When reduced by 5%, what measured variable is typcially the basis for determining net positive inlet pressure required (NPIPR), for a positive displacement screw pump?
  • 4. For a vertical in-line pump, which best describes the baseplate requirements?
  • 5. Which pump would be most appropriate for a relatively low NPSHA application [NPSHA = 20 ft (9 m)] for the relatively high flow rate of 10,000 gpm (2300 m3/h)?
  • 6. For the options provided, what is the minimum flow value that a flow meter with +/- 1% full scale accuracy and full scale flow rate of 5,000, if the required measurement accuracy is +/- 3%?
  • 7. Which of the items listed are all typically recommended to keep as spare parts for a general industrial pump?
  • 8. What is the mean time between repair (MTBR) for a population of 90 pumps in a refining unit that have had 30 unexpected failures and 30 planned repairs in a 12 month period?
  • 9. Which pump type would have minimal effect on the viscosity of a non-Newtonian fluid?

  • 10. For the measurements below, what is the total head for a centrifugal pump?

    • Flow rate is 700 gpm (160 m3/h),
    • Suction (inlet) pressure is 100 psig (690 kPa)
    • Suction pipe velocity at pressure measurement 5.7 ft/s (1.8 m/s)
    • Discharge (outlet) pressure is 250 psig (1725 kPa)
    • Discharge pipe velocity at pressure measurement 16 ft/s (4.9 m/s)
    • Gauge locations are two pipe diameters before the inlet and two pipe diameters after the outlet
    • Gauges are at the same elevation
    • Fluid specific gravity is 0.8 (800 kg/m3)
    • Atmospheric pressure is 14.5 psi (100 kPa)
    • Acceleration due to gravity is 32.2 ft/s2 (9.81 m/s2)
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