Philadelphia Class A Engineers License

Front 1

What winding is connected to the load?

Back 1

Secondary

Front 2

Regulates the steam pressure?

Back 2

Modulating Pressure Control

Front 3

When can you blow down a water wall?

Back 3

When there is no pressure on the boiler

Front 4

What must be done to prevent flashback?

Back 4

Purge

Front 5

Steam at a high velocity is converted into _ _ _ _ _ _ _ _ _ _engery?

Back 5

Kinetic

Front 6

Supercritical pressure and saturation temperature?

Back 6

3206 PSIA at 705.4°F

Front 7

One gallon of water weighs?

Back 7

8.33lbs

Front 8

Cylinder color of R -407C?

Back 8

Chocolate

Front 9

Cylinder color of R -404a?

Back 9

Orange

Front 10

How are particulates discharged into hoppers?

Back 10

Rappers

Front 11

First regulations of the clean air act?

Back 11

1963

Front 12

How many cubic inches of steam space is in a cylinder of an engine 10 " x 24 " with a stroke 2 / 3 of full travel?

Back 12

1243

Hint 12

almost in sequence

Front 13

Where is the flame-sensing device located?

Back 13

On the front of the furnace

Front 14

Oil cooler pumps should be maintained at?

Back 14

140-160°F

Front 15

What is fail-safe and cannot reclose its self?

Back 15

Rupture disc

Front 16

What controls the speed of the turbine?

Back 16

Control Speed governor

Front 17

What two elements produce the most heat in fuel?

Back 17

Hydrogen and carbon

Front 18

What removes non-condensable?

Back 18

Ejectors/Vaccum pumps

Front 19

Where would scale form?

Back 19

Below the water line

Front 20

What is Cold Junction?

Back 20

It is used as a reference point

Front 21

Where would you find downcomers?

Back 21

A water-tube boiler

Front 22

Chemical used to perform water treatment?

Back 22

Reagents

Front 23

What minerals cause scale?

Back 23

Calcium and Magnesium

Front 24

Process of introducing fresh air into a building?

Back 24

Ventilation

Front 25

A boiler requiring excessive amounts of oxgen scavenging chemicals could indicate?

Back 25

A malfunctioning DA

Front 26

Device that opens at 75% of the motors rated speed?

Back 26

Centrifugal Switch

Front 27

Bursting psi is 1200, allowable PSI is 200. Safety Factor?

Back 27

6.0

Front 28

Corrugated furnace used in vertical tubular or horizontal firebox boiler?

Back 28

Morrison

Front 29

Automatic valve with two valves and two dics?

Back 29

Balanced valve

Front 30

Corrugated furnace used primarily in horizontal furnaces?

Back 30

Adamson

Front 31

Transformers are rated in?

Back 31

VA

Front 32

Water expanding to steam has what ratio?

Back 32

1600:1

Front 33

Primary purpose of wet scrubbers?

Back 33

Remove flue gas particulates

Front 34

Technique used to control particulates from boilers?

Back 34

Fabric Filters

Front 35

What safety valve is set lower in pressure?

Back 35

Superheater Safety Valve

Front 36

Process of water softner?

Back 36

Backwash, brine, rinse, service.

Front 37

Advantage of an open feedwater heater?

Back 37

Removes oxgen faster

Front 38

Evaporator approach temperature of a 3 pass chiller?

Back 38

5 degrees

Front 39

Two main types of condensers?

Back 39

Direct contact and surface condenser

Front 40

Minimal amount of volume air changes in a purge cycle?

Back 40

4

Front 41

86,260LBS/HR equals how much BHP?

Back 41

2500

Front 42

What is a slaker?

Back 42

Method for introducing lime and water into flue gas.

Front 43

Controls NOx emissions in gas turbine plants?

Back 43

Selective catalystic reduction

Front 44

BTUs Required to turn 1lb of water into 1lb of steam?

Back 44

970.3

Front 45

Specific heat formula?

Back 45

Q= MC🔺T

Front 46

Controls the axial postion of the turbine?

Back 46

Thrust bearing

Front 47

Primary controlling device on a three-element feedwater regulator?

Back 47

Drum Level

Hint 47

2 Element: Steam Flow and Water Level.
3 Element: Steam Flow, Feedwater Flow and Drum Level

Front 48

Centrifugal pumps are classified as?

Back 48

Vertical, horizontal, volute and double suction.

Front 49

Vapor bubles forming and collapsing called?

Back 49

Cavitation

Hint 49

Parts of Teeth collapsing......

Front 50

Control sequence for air circulation?

Back 50

Sensor, controller, controlled device, control agent and control medium.

Front 51

Feedwater control valve control by?

Back 51

Water level, steam flow, and feedwater flow

Front 52

Hardness that can be reduced by boiling?

Back 52

Temporary

Front 53

Evaporator approach temperature of a four pass chiller?

Back 53

3-4

Front 54

Hardness that can be reduced by chemicals?

Back 54

Permanent

Front 55

Inches of Mercury -> PSI

Back 55

multiply by .491

Front 56

What is the pulley formula?

Back 56

Drive RPM × Drive Diameter = Driven RPM × Driven Diameter

Front 57

What tests the relieving capacity of a safety valve?

Back 57

Accumulation Test

Front 58

PSI -> Inches of mercury

Back 58

_______/.491

Front 59

Common chemical testing method?

Back 59

Titration

Front 60

Copper testing is used for?

Back 60

Heat exchanger and pump wear/

Front 61

What's pictured here?

Back 61

A vertical tubular boiler of the dry-top design

Front 62

What is pictured above?

Back 62

Baffles

Front 63

What should the temperature be when the water leaves the DA Tank?

Back 63

Within 3 to 5° of steam temperature

Front 64

What is the normal operating temperature in a DA?

Back 64

213

Front 65

The water level is slowly decreasing, what should you do?

Back 65

Immediately secure boiler.