[ILM] 102H

Question 1

Valve body

Answer 1

the outer shell of a valve assembly that contains all stationary & working parts

Question 2

valve bonnet

Answer 2

the top cover of a valve

Question 3

valve disk

Answer 3

a movable plate, needle or ball that plugs, restricts or allow fluids flow through a seat or a port

Question 4

valve operator

Answer 4

any device used to move a control valve’s stem and the valve disk

Question 5

disc or flapper

Answer 5

a plate that covers a seat

Question 6

ball valve

Answer 6

has a ball with a hole drilled through its middle

Question 7

needle valve

Answer 7

is effective for regulating fluid flow

Question 8

diaphragm

Answer 8

a flexible membrane that covers an inlet hole

Question 9

control valve types

Answer 9

one-way valve
two-way valve
three-way valve
four-way valve

Question 10

One-way valve

Answer 10

check valve
pressure differential valve
relief valve

Question 11

gate valve is not used in refrigeration or for flow regulation due to its design

T or F

Answer 11

True

Question 12

three-way valve

Answer 12

diverts or mixes flowing fluids

Question 13

service valve

Answer 13

is used to gain entry into a refrigeration system or to manage refrigerant flow

1. isolates components to prevent refrigerant loss during service procedure
2. perform a refrigeration system pump-down, in which all of the refrigerant flows into the receiver for storage while servicing parts of the system

Question 14

solenoid valve

Answer 14

is used to start and stop refrigerant flow

1. direct acting or normally open
2. reverse acting or normally closed

Question 15

Crankcase Pressure Regulating(CPR) Valve

Answer 15

maintains a maximum crankcase pressure at the entrance to the compressor

Question 16

FLA =

Answer 16

LRA / 6

Question 17

pressure differential valve

Answer 17

provides a pressure differential between two points in a refrigeration system