Valves Level 2

Front 1

What is a check valve used for?

Back 1

To prevent backflow or reversal of fluid in the pipe

Front 2

Which valve is beat suited for fluid throttling?

Back 2

Globe Valves

Front 3

3 main categories of check valves. From below which is not a category of check valves?

Back 3

Swing Check

Sliding Check

Lift Check

Non - slam check

Front 4

What is the name of the valve that is somewhat similar to the gate valve except has a disc rotates in the bore of the body?

Back 4

A butterfly valve

Front 5

What kind of flow is required when incorporating the use of a swing check valve?

Back 5

High velocity flow to maintain the disc in full open position

Front 6

A ball valve only requires a _________ degree turn of the handle to fully open or close to the valve?

Back 6

90°

Front 7

What does WSP mean on a valve?

What does WSP mean on a valve?

Back 7

Working Steam Pressure

Front 8

What can a slight open gate valve cause?

Back 8

High Velocity flow through the valve

Front 9

A butterfly valve creates

Back 9

Low restriction in flow

Front 10

The Y pattern globe valve is installed where there is a possibility of ________ being deposited into the line upstream of the valve?

Back 10

Sediment

Front 11

A one piece ball ball is?

Back 11

Not serviceable

Front 12

What is an actuator

Back 12

A device that is connected to the valve bonnet/stem that allows the valve to be remotely activated

Front 13

Which valve has a pilot gas connection built into the body?

Back 13

Firing valve

Front 14

According to the ILM's which globe valve has slightly less restriction than the straight globe?

Back 14

Angle globe valve

Front 15

Which check valve was recently added in our industry?

Back 15

Non-slam check valve

Front 16

Which check valve can be installed in both horizontal and vertical positions?

Back 16

A swing check

Front 17

Gate valves are not designed for throttling?

Back 17

True

False

Front 18

Globe and check valves have what type of seat?

Back 18

Downstream side

Front 19

What type of valve is installed on a straight run of pipe where pressure lose must be kept to a minimum or where there is a possibility of sediment being deposited in the line upstream of the valve?

Back 19

Y pattern

Front 20

Back 20

1/4 to 1/2 psi

Front 21

According to the ILM's which of the following is not a main design and flow pattern of a glove valve?

Back 21

Y pattern

Offset pattern

Angle pattern

Straight pattern

Front 22

Which style of valve incorporates a replacement disk and seat?

Back 22

A globe valve

Front 23

What Does WOG mean

Back 23

Water Oil Gas pressure

Front 24

Valves used as curb cocks are typically made of what material?

Back 24

Bronze

Front 25

What type of material is the "ball" on the ball valve made of?

Back 25

Carbon steel or Stainless steel

Front 26

What type of material is a gas valve typically made of?

Back 26

Brass

Front 27

What type of valves are best suited for non- throttled laminar flow?

Back 27

Gate and Ball valves

Front 28

How many change of directions on fully open globe valve?

Back 28

4 90° turns

Front 29

What location should a check valve be installed st the end of a water service pipe and what material is it?

Back 29

Cold water line, on plastic pipe

Front 30

What type of removal device should be incorporated upstream of a pressure reducing valve?

Back 30

A strainer

Front 31

Which type of valve can be operated in either normally open or closed position?

Back 31

Solenoid Valve

Front 32

Back 32

Pressure reducing valve

Front 33

What is the movable plate inside a butterfly valve body that controls the flow the the valve?

Back 33

A valve disc

Front 34

What is special about pet cocks?

Back 34

One end is threaded and the other end is for a hose

Front 35

What is an advantage of a butterfly valve?

Back 35

It can be installed in areas with limited head room

Front 36

Back 36

A vertical lift check

Front 37

A pressure reducing valve will reduce pressure in a piping system. What other function does it have?

Back 37

Regulates pressure

Front 38

What style of valve is a gas cock?

Back 38

A plug valve

Front 39

What style of valve is best used for fine throttling?

Back 39

Needle valve

Front 40

What style of valve is best suited for 90°bends

Back 40

An angle pattern globe valve

Front 41

Back 41

Diaphragm Valve

Front 42

A lift check valve is typically installed in what position?

Back 42

Upright on horizontal piping

Front 43

What position must a ball valve be installed

Back 43

Ball valves are permitted to be installed in any position

Front 44

What is a common result of damage to a valve seat when the valve is permitted to leak ever so slightly over a long period of time?

Back 44

Wire Draw

Front 45

What is commen result of damage to the valve seat when a disc has deteriorated to a point where there is metal on metal contact?

Back 45

Galling

Front 46

Back 46

Needle valve

Front 47

When a spring check valve is packaged and shipped how does it come.

Back 47

The normally closed position

Front 48

What are two variations in stem operation used on valves?

Back 48

Rising and non rising

Front 49

What type of valve is used when hot tapping into water mains?

Back 49

A corporation stop

Front 50

Which is the most common design of a valve bonnet used on applications where valve servicing is frequent?

Back 50

Bolted bonnet

Front 51

8 types of valves

Back 51

Plug, gate, globe, ball, butterfly, check, diaphragm, relief

Front 52

10 kinds of end connections used on valves

Back 52

Threaded, welded, flanged, compression, flared, solder, hub, union, bolted, clip

Front 53

SS?

Back 53

Stainless steel

Front 54

PSIG?

Back 54

Pounds per square inch

Front 55

SP?

Back 55

Steam pressure

Front 56

MI?

Back 56

Malleable Iron

Front 57

4 types of gate valves

Back 57

Solid wedge disc, flexible wedge disc, split wedge disc, and double disc

Front 58

3 types of globe valves

Back 58

Straight pattern, angle pattern and y pattern

Front 59

What is the plug type globe valve ideal for?

Back 59

Very minute throttling because of the wide surface of the contact on the disc and seat is likely to erode or cause wire drawing

Front 60

What does the spherical ball of the ball valve seats made of?

Back 60

Teflon

Front 61

Where should a square headed steam cock valve not be used?

Back 61

Should not be used on gas piping systems

Front 62

What's good about the diaphragm design?

Back 62

The design provides easy maintenance and repair as the valves can be replaced without disturbing the piping line

Front 63

What type of valve?

Back 63

Swing Check

Front 64

What type of valve?

Back 64

Globe Y pattern

Front 65

What type is the top valve?

Back 65

Angle globe valve

Front 66

What type of valve?

Back 66

Globe straight or Lift Check horizontal

Front 67

What type of valve?

Back 67

Ball valve

Front 68

3 types of bonnet valves?

Back 68

Screwed in bonnet, screwed union bonnet, bolted bonnets

Front 69

What is the knife gate valve good for?

Back 69

The gate has a sharp edge on the bottom to shear entrained solids or to separate slurries

Front 70

What is the rising stem used with?

Back 70

OS&Y (outside screw and yoke)