POWER ENGINEERING 4TH CLASS -
I
UNIT B5 REVIEW COMPLETE DETAILED
CASE STUDY
R4B05-03-02-01 A steam boiler that is to be shut down for a long period of time should be:
Select one:
a. Drained, thoroughly dried, have desiccant placed inside, and closed up
b. Left with the water at normal working level but opened up to atmosphere
c. Left with the water at normal working level and pressurized with air to 50 kPa
d. Filled completely with water and the vent left open to atmosphere for expansion - a
R4B05-04-01-03 When shutting down a boiler for internal cleaning:
Select one:
a. Shut down the boiler, then fill it completely with chemically treated water
b. Shut off the fire. Then, drain the boiler while it is hot, open it up, and flush it
c. Allow the boiler to cool. Then drain it, open it up, and flush it
d. Let it stand for a couple of days, then drain it - c
R4B05-02-01-01 A single-pole scaffold:
Select one:
a. Is prohibited from use by Workplace Safety and Health
b. Is often referred to as the pogo platform
c. Is partially supported by a building
d. Need not be plumb, but must be level - c
R4B05-01-01-05 A type of file which is always a single cut file is the:
,Select one:
a. Half round file
b. Mill file
c. Square file
d. Pillar file - b
R4B05-04-01-01 Prior to a worker entering the steam drum of an off-line boiler that is connected to a
common, pressurized steam header, the
Select one:
a. Header must be shut down and depressurized
b. Boiler Inspector must be informed before any work occurs
c. Main steam, blowdown and feedwater valves must be closed, locked and tagged
d. Drum must be vented, the safety valve must be gagged, and all ash and soot removed from the firebox
-c
R4B05-01-04-01 In order to check the trueness of a flat surface, one would use a:
Select one:
a. Hermaphrodite divider
b. Surface plate
c. Layout bench
d. Machinist's square - b
R4B05-04-04-02 Which of the following are chemicals used for boiler cleaning and treatment, that
require careful control and vigilant monitoring?
Select one:
a. Chelants
b. Phosphates
c. Sulfites
d. Sulfates - a
, R4B05-02-04-08 When joining two ropes of different diameters we use a:
Select one:
a. Braiding
b. Sheet bend
c. Figure eight knot
d. Sheep shank - b
R4B05-02-02-02 Safe rigging practice dictates that weight estimates of objects to be lifted, when the
objects are relatively lightweight, should be accurate within plus or minus _____.
Select one:
a. 500 lbs
b. 100 kg
c. 20%
d. 50% - c
R4B05-02-01-03 Ladders that are used in the workplace should comply with:
Select one:
a. CSA Standards for Scaffolding
b. Common industry practice
c. ASME/ANSI ladder material specifications
d. WCB regulations and CSA standards - d
R4B05-04-02-01 What pressure is applied to a boiler during a hydrostatic test?
Select one:
a. 1.5 times the setting of the safety valve.
b. 1.5 times the maximum allowable working pressure.
c. Design pressure.
d. 2 times the setting of the lowest set safety valve. - b
I
UNIT B5 REVIEW COMPLETE DETAILED
CASE STUDY
R4B05-03-02-01 A steam boiler that is to be shut down for a long period of time should be:
Select one:
a. Drained, thoroughly dried, have desiccant placed inside, and closed up
b. Left with the water at normal working level but opened up to atmosphere
c. Left with the water at normal working level and pressurized with air to 50 kPa
d. Filled completely with water and the vent left open to atmosphere for expansion - a
R4B05-04-01-03 When shutting down a boiler for internal cleaning:
Select one:
a. Shut down the boiler, then fill it completely with chemically treated water
b. Shut off the fire. Then, drain the boiler while it is hot, open it up, and flush it
c. Allow the boiler to cool. Then drain it, open it up, and flush it
d. Let it stand for a couple of days, then drain it - c
R4B05-02-01-01 A single-pole scaffold:
Select one:
a. Is prohibited from use by Workplace Safety and Health
b. Is often referred to as the pogo platform
c. Is partially supported by a building
d. Need not be plumb, but must be level - c
R4B05-01-01-05 A type of file which is always a single cut file is the:
,Select one:
a. Half round file
b. Mill file
c. Square file
d. Pillar file - b
R4B05-04-01-01 Prior to a worker entering the steam drum of an off-line boiler that is connected to a
common, pressurized steam header, the
Select one:
a. Header must be shut down and depressurized
b. Boiler Inspector must be informed before any work occurs
c. Main steam, blowdown and feedwater valves must be closed, locked and tagged
d. Drum must be vented, the safety valve must be gagged, and all ash and soot removed from the firebox
-c
R4B05-01-04-01 In order to check the trueness of a flat surface, one would use a:
Select one:
a. Hermaphrodite divider
b. Surface plate
c. Layout bench
d. Machinist's square - b
R4B05-04-04-02 Which of the following are chemicals used for boiler cleaning and treatment, that
require careful control and vigilant monitoring?
Select one:
a. Chelants
b. Phosphates
c. Sulfites
d. Sulfates - a
, R4B05-02-04-08 When joining two ropes of different diameters we use a:
Select one:
a. Braiding
b. Sheet bend
c. Figure eight knot
d. Sheep shank - b
R4B05-02-02-02 Safe rigging practice dictates that weight estimates of objects to be lifted, when the
objects are relatively lightweight, should be accurate within plus or minus _____.
Select one:
a. 500 lbs
b. 100 kg
c. 20%
d. 50% - c
R4B05-02-01-03 Ladders that are used in the workplace should comply with:
Select one:
a. CSA Standards for Scaffolding
b. Common industry practice
c. ASME/ANSI ladder material specifications
d. WCB regulations and CSA standards - d
R4B05-04-02-01 What pressure is applied to a boiler during a hydrostatic test?
Select one:
a. 1.5 times the setting of the safety valve.
b. 1.5 times the maximum allowable working pressure.
c. Design pressure.
d. 2 times the setting of the lowest set safety valve. - b
