Steam Boilers Module 15 Session 11

Question 1

Pressure gauges are calibrated in pounds per \_\_\_\_\_\_\_\_\_\_\_\_.
A. Square foot
B. Cubic inch
C. Vertical foot
D. Square inch

Answer 1

D. Square inch

Question 2

Absolute pressure is equal to ____________.
A. Gauge pressure minus atmospheric pressure
B. Gauge pressure plus atmospheric pressure
C. Atmospheric pressure- gauge pressure
D. Gauge pressure plus steam pressure

Answer 2

B. Gauge pressure plus atmospheric pressure

Question 3

The boiler steam-pressure gauge must be connected to the \_\_\_\_\_\_\_\_\_\_\_\_ of the boiler.
A. Lowest part of the steam side
B. Lowest part of the water side
C. Highest part of the steam side
D. Highest part of the water side

Answer 3

C. Highest part of the steam side

Question 4

The boiler steam-pressure gauge is protected from high temperatures by \_\_\_\_\_\_\_\_\_\_\_\_.
A. A metal frame
B. Steam gauge guards
C. A blower
D. A siphon

Answer 4

D. A siphon

Question 5

Vacuum gauges are calibrated in inches of \_\_\_\_\_\_\_\_\_\_\_\_ atmospheric pressure.
A. Mercury below
B. Water below
C. Mercury above
D. Water above

Answer 5

A. Mercury below

Question 6

A primary reason for using thermocouples for measuring temperatures is to ____________.
A. Take advantage of economy of scale
B. Take and read the readings for remote plants centrally
C. Promote boiler efficiency
D. Promote plant efficiency

Answer 6

B. Take and read the readings for remote plants centrally

Question 7

Most thermometers used in a steam plant are calibrated in \_\_\_\_\_\_\_\_\_\_\_\_.
A. Psig
B. Psia
C. Degrees Fahrenheit
D. Degrees Kelvin

Answer 7

C. Degrees Fahrenheit

Question 8

Thermocouples measure \_\_\_\_\_\_\_\_\_\_\_\_.
A. Gauge pressure
B. Absolute pressure
C. Temperature
D. Heat

Answer 8

C. Temperature

Question 9

Liquids in a tank may be measured from a remote location using a
A. Pneumercator
B. Thermocouple
C. Pressure control
D. Tank chart

Answer 9

A. Pneumercator

Question 10

The rotameter flow meter consists of a \_\_\_\_\_\_\_\_\_\_\_\_.
A. Ball in a straight tube
 B. Ball in a tapered tube
 C. Straight tube
 D. Tapered tube

Answer 10

D. Tapered tube

Question 11

Which of the following represent two types of variable-area flow meters?
A. Rotameter and valve
B. Pressure and globe valve A
C. Temperature and pressure
D. Temperature and gate valve

Answer 11

A. Rotameter and valve

Question 12

Recorders are used to \_\_\_\_\_\_\_\_\_\_\_\_.
A. Regulate steam output
B. Regulate the air-to-fuel ratio
C. Give an overall view of the steam plant operation
D. Reduce plant maintenance

Answer 12

C. Give an overall view of the steam plant operation

Question 13

Modern steam plants use instrumentation to \_\_\_\_\_\_\_\_\_\_\_\_.
A. Decrease productivity
B. Promote safe and efficient operation
C. Reduce plant maintenance
D. Comply with insurance regulations

Answer 13

B. Promote safe and efficient operation

Question 14

Which of the following may utilize strip charts or circular charts?
A. Recorders
B. Pneumercators
C. Pressure gauges
D. Transducers

Answer 14

A. Recorders

Question 15

A Ringelmann chart is used to determine \_\_\_\_\_\_\_\_\_\_\_\_.
A. Atmospheric conditions
B. Smoke density
C. Combustion efficiency
D. Fuel oil density

Answer 15

B. Smoke density

Question 16

Light and a photoelectric cell are sometimes used to indicate \_\_\_\_\_\_\_\_\_\_\_\_.
A. A Ringelmann reading
B. Atmospheric conditions
C. Smoke density 
D. Draft conditions

Answer 16

C. Smoke density