Form A - PEM

Refer to Fig. 01. In pump's terminology, the total static head is indicated by the letter

• A

• B

• C

• D

Refer to Fig. 02. ldentify the type of centrifugal pump impeller shown.

• Open design impeller.

• Enclosed design impeller.

• Semi-open design impeller.

• Curve vane design impeller.

Which one of the following pumps must be primed during the initial operation?

• Gear pump.

• Screw pump.

• Centrifugal pump.

• Diaphragm pump.

Which one of the following screw pumps uses the center rotor as its driving element?

• Triple screw pump.

• Single screw pump.

• Double screw pump.

• External screw pump.

Refer to Fig. 05. Identify the component of the air operated diaphragm pump indicated by 'Y'.

• Chamber.

• Diaphragm.

• Check valve.

• Air distribution valve.

Which one of the following vacuum pumps has self-lubricating and self-adjusting carbon graphite vanes?

• Piston vacuum type.

• Diaphragm vacuum type.

• Rotary vane oil-less type.

• Rotary vane lubricated type.

In a diaphragm-metering pump, the side that produces the pump action is known as the

• left side.

• right side.

• liquid side.

• power side.

What is the MAIN reason for selecting a mechanical seal over a gland packing in a fluid pump?

• The mechanical seal is inexpensive.

• The mechanical seal is easier to install.

• The mechanical seal requires !esser maintenance.

• The mechanical seal is able to handle toxic chemical.

Which one of the following faults is the cause of intermittent pump operation of an air operateci diaphragm pump?

• Suction line leaks.

• Blocked suction line.

• Material too viscous.

• Suction manifold and chamber misaligned.

Which one of the following maintenance requires periodic inspection of machines and equipment?

• Predictive maintenance.

• Preventive maintenance.

• Breakdown maintenance.

• Emergency maintenance.