Unit 1 Review Self-Assessment Test Boiler Details Flashcards
- Cast-iron sectional boilers have flue gas passages which:
A. Are often termed “breeching”
B. Increase heat transfer
C. Receive radiant heat only
D. Act as boiler water legs
E. Are smooth to increase combustion gas flow
B. Increase heat transfer
2. The Locomotive boiler has a furnace that is: A. External B. Almost completely surrounded by water C. Partially surrounded by brickwork D. Called a firetube E. Not part of the pressure shell
B. Almost completely surrounded by water
- The lower tubes of the serpentine watertube boiler are exposed to the _____ heat from the fire.
A. Radiant
B. Convection
C. Conduction
D. Radiant and conduction
E. Convection and conduction
A. Radiant
- The advantages of “bent tube” boilers include:
- Bent tubes allowed for better heat transfer
- Much refractory was eliminated
- Limitations on design and configuration
- The tubes could form flue gas baffles
A. 1, 2
B. 2, 3, 4
C. 3, 4
D. 1, 2, 3, 4
E. 1, 2, 4
E. 1, 2, 4
- The “Steel plate heating boiler” is classified as a _____ pass boiler.
A. One
B. Two
C. Three
D. Four
E. Multi
A. One
Steel plate heating boiler is classified as a ONE pass boiler.
- The electrode type electric boiler consists of two cylindrical chambers:
A. The inner one forming the regulating compartment and the other the generating compartment
B. The inner one forming the generating compartment and the other the regulating compartment
C. The inner one forming the regulating compartment and the other the steam compartment
D. The inner one forming the steam compartment and the other the generating compartment
E. The inner one forming the fire compartment and the other the generating compartment
B. The inner one forming the generating compartment and the other the regulating compartment
- “Prior to the power being turned on” in an electrode type electric boiler the water levels in the two chambers would be:
A. Higher in the inner chamber
B. Higher in the outer chamber
C. The same in both chambers
D. Lower in the fire tubes
E. Lower in the water tubes
C. The same in both chambers
Note: “PRIOR TO THE POWER BEING TURNED ON”
- Cast-iron boiler sections maximize heat transfer by:
A. Using four push nipples per section
B. Vertical firing
C. Exposing as large a surface as possible to the hot gases
D. Utilizing an external furnace
E. Using a large economizer
C. Exposing as large a surface as possible to the hot gases
- Since pure water will not conduct electricity a predetermined amount of electrolyte (_____) is dissolved in the water.
A. NaOH
B. H2SO4
C. NaSO3
D. HCl
E. NaCl
E. NaCl
- The top of the furnace in a Locomotive boiler was termed the:
A. Uptake
B. Firebox
C. Barrel
D. Crown sheet
E. Smoke box
A. Uptake
- In order to reduce extensive heat losses from the externally fires furnace walls:
A. The furnace was made longer
B. The furnace was enlarged
C. More firetubes were added
D. The furnace grate was placed inside the enlarged return flue
E. The furnace walls were lined with refractory
D. The furnace grate was placed inside the ‘‘enlarged return flue’’
- At atmospheric conditions with the heat available 1 litre of water will produce _____ litres of steam.
A. 500
B. 1000
C. 1500
D. 1700
E. 2000
D. 1700
- The HRT boiler is classified as a _____ pass boiler.
A. One
B. Two
C. Three
D. Four
E. Multi
B. Two
HRT BOILER is a Two types Boiler
- The stampings on a packaged firetube boiler may indicate a Maximum Allowable Working Pressure (MAWP) of 1000 kPa (145 psi), but the applicable code or Certificate of Inspection may show a MAWP of:
A. 100 kPa (14.5 psi)
B. 103 kPa (14.7 psi)
C. 160 kPa (23.2 psi)
D. 1000 kPa (145 psi)
E. 1100 kPa (159.5 psi)
B. 103 kPa (14.7 psi)
- The types of construction used with packaged boilers are:
- “A”
- “B”
- “C”
- “D”
- “O”
A. 1, 2, 3
B. 2, 3, 4
C. 1, 4, 5
D. 1, 2, 4
E. 2, 3, 5
C. 1, 4, 5