Question 1: Identify part E of the illustration of a mechanically actuated diaphragm pump:
A - Suction valve B - Pump body C - Diaphragm D - Piston guide _______________________________________________ Question 2: Identify part D of the illustration of a mechanically actuated diaphragm pump:
A - Diaphragm B - Pump body C - Suction valve
_______________________________________________
Question 3:
Identify part B of the illustration of a mechanically actuated diaphragm pump:
A - Pump body B - Diaphragm C - Piston guide D - Suction valve
_______________________________________________
Question 4: Identify part A of the illustration of a mechanically actuated diaphragm pump:
A - Diaphragm B - Eccentric C - Piston guide D - Discharge valve
_______________________________________________
Question 5: The type of reciprocating pump valve used for high pressure clean service is called a:
A - Flat disk valve B - Ball valve C - Wing guided valve D - Stem guided valve _______________________________________________
Question 6: The type of reciprocating pump valve suitable for hot and cold water service at lower pressures is called a: A - Wing guided valve B - Stem guided valve C - Ball valve D - Flat disk valve _______________________________________________
Question 7: A triplex double-acting pump will deliver: A - Six pulses of liquid in one crankshaft revolution B - Three pulses of liquid in one crankshaft revolution C - Six pulses of liquid in three crankshaft revolutions D - One pulse of liquid in three crankshaft revolutions _______________________________________________
Question 8: As a pumping unit, the steam-operated injector is: A - An important auxiliary and necessary on all types of reciprocating pumps B - Widely used throughout the petroleum industry C - Very efficient and easy to control D - Quite inefficient and difficult to control _______________________________________________
Question 9: All power pumps should be equipped with:
A - Drainage valves located upstream of the pump B - Relief valves on the suction end to prevent damage from overpressure C - Relief valves on the discharge to prevent damage from overpressure D - A diaphragm to separate the chamber from the liquid being pumped _______________________________________________
Question 10: Ball valves are used where free opening of suction and discharge is required. A - True B - False _______________________________________________
Question 11: The type of reciprocating pump valve used where free opening of the suction and discharge is required is called a: A - Stem guided valve B - Flat disk valve C - Ball valve D - Wing guided valve _______________________________________________
Question 12: The diaphragm pump differs from the piston or plunger-type reciprocating pump in that: A - It has no moving parts B - The fluid is in full contact with the reciprocating mechanism C - It requires no external power source to drive the pump D - The fluid is completely isolated from the reciprocating mechanism _______________________________________________
Question 13: Reciprocating pumps can be used to develop very high pressures and carefully controlled flows because the volume of liquid discharged depends only upon the _____________ and _________ of the pump. A - driver size, temperature B - dimensions, speed C - dimensions, temperature D - driver size, speed _______________________________________________
Question 14: One method of increasing the volume of flow through a single-acting plunger-type pump is to: A - Reduce the pressure at the discharge of the pump B - Increase the level of the liquid tank at the suction side of the pump C - Increase the length of the pump stroke D - Open the discharge valve wider _______________________________________________
Question 15: Diaphragm pumps are well suited for use as controlled volume or metering pumps because: A - The fluid is in full contact with the reciprocating mechanism B - Their capacity is static, ensuring consistent volume on every stroke C - The fluid is completely isolated from the reciprocating mechanism D - Their capacity can be adjusted by varying the stroke length or the stroke frequency _______________________________________________
Question 16: The discharge of a mechanically actuated diaphragm pump is usually limited to about: A - 350 kPa B - 2000 kPa C - 3500 kPa D - 350 psi _______________________________________________
Question 17: A triplex pump will complete one stroke in: A - 120 degrees B - 360 degrees C - 180 degrees D - 90 degrees _______________________________________________
Question 18: In a plunger-type pump, the distance the plunger moves in and out of the cylinder is called the: A - Length of stroke B - Compression stroke C - Stroke of the pump D - Power stroke _______________________________________________
Question 19: In a plunger type pump, the movement of the plunger in one direction is called the: A - Length of stroke B - Compression stroke C - Stroke of the pump D - Power stroke _______________________________________________
Question 20: A reciprocating pumps capacity depends on: A - changes in the discharge pressure B - the number of pumping strokes per minute C - the clearance between the gears and the pump casing D - None of the above _______________________________________________
Question 21: A piston-type duplex pump has two: A - Discharge strokes per crankshaft revolution B - Valves at each end of the pump cylinder C - Pistons D - Sources of drive power _______________________________________________
Question 22: Why should all power pumps be equipped with relief valves on the discharge? A - to prevent damage from under-pressure B - to prevent the driver from stalling C - to prevent damage from overpressure D - to allow relief from low operating temperatures _______________________________________________ Question 23: Generally, the type of valve used in a pump is determined by the properties of the liquid handled.
