Pumps Chapter 10-11

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What is the main function of an air chamber in a pump installation?

To increase the speed of the pump
To reduce the size of the suction pipe
To increase the pressure of the liquid
To smoothen the flow of the liquid (correct)

Where should a pressure relief valve be installed in a pump installation?

Between the pump and the discharge pipe
Between the pump and the suction pipe
On the discharge side of the piping installation (correct)
On the suction side of the piping installation

What is the shape of the pressure-volume diagram of the steam end in a direct acting steam pump?

Parallelogram
Rectangle (correct)
Circle
Triangle

What is the purpose of a foot valve and strainer in a pump installation?

To minimize head loss at the suction pipe (A) Signup and view all the answers

What is the characteristic of the discharge flow diagram in a direct acting steam pump?

It is a rectangle (B) Signup and view all the answers

What is the type of engine that drives a crank and flywheel driven pump?

Compound steam engine (C) Signup and view all the answers

What is the purpose of a crank and connecting rod in a power driven pump?

To convert rotary motion into linear motion (C) Signup and view all the answers

What is the term used to describe a large reciprocating pump driven by a steam engine?

Pumping engine (B) Signup and view all the answers

Which type of pump is ideal for low head large-capacity applications?

Mixed-flow centrifugals pumps (A) Signup and view all the answers

What is the primary mechanism of head development in axial-flow pumps?

Lifting action of vanes (D) Signup and view all the answers

What is the typical capacity range of power pumps driven by a crankshaft or other device?

Very low to medium flows (A) Signup and view all the answers

Which type of pump is characterized by a series of vanes, blades, or buckets turned by a single rotor?

Vane pumps (B) Signup and view all the answers

What is the primary advantage of direct-acting pumps?

Steady discharge flow (B) Signup and view all the answers

Which type of pump is well-suited for handling non-abrasive viscous liquids?

Cam and piston rotaries (C) Signup and view all the answers

What is the maximum pressure range of power pumps driven by a crankshaft or other device?

Up to 15,000 psi (C) Signup and view all the answers

Which type of pump is a form of reciprocating power pump?

Crank-and-flywheel pump (A) Signup and view all the answers

What is the primary function of an automatic unloader in reciprocating pumps?

To bypass the discharge with the suction well when operating against a closed discharge (B) Signup and view all the answers

What type of pump is best suited for handling liquids of high viscosities, such as heavy fuel oil?

Rotary pump (A) Signup and view all the answers

In a cam and piston pump, what is the function of the abutment or follower?

To displace a positive quantity of liquid from the space between the cam and follow and the pump casing (B) Signup and view all the answers

What is the main difference between external gear pumps and internal gear pumps?

The location of the gear rotors and idler (B) Signup and view all the answers

What is the primary advantage of plunger-type reciprocating pumps over piston-type pumps?

They are more suitable for high-pressure heavy duty or continuous service and can handle gritty and foreign material (B) Signup and view all the answers

What is the purpose of the valves in a reciprocating pump?

To allow the forward and backward movement of the piston or plunger inside the cylinder (A) Signup and view all the answers

What is the characteristic of rotary pumps that makes them capable of handling only clean solutions?

They are essentially free of solids (D) Signup and view all the answers

In a gear pump, what is the purpose of the tooth space?

To carry the liquid around to the opposite side and displace it as the teeth mesh again (C) Signup and view all the answers