B-05: Energy Plant Maintenance Flashcards
(20 cards)
R4B05-01-03 A screwdriver with a square tip is called a ______ screwdriver.
A. A slot
B. An Allen
C. A Robertson
D. A Phillips
C. A Robertson
Which of the following valves is locked or tagged open preparing a boiler for internal inspection?
A. Header isolation
B. Continuous blowdown
C. Bottom blow off
D. Non-return drain
D. Non return drain
R4B05-02-02-01 A common way to determine the mass of an object to be hoisted is by determining its:
A. Density and volume
B. Size and shape
C. Centre of gravity
D. Specific gravity and centripetal force
A. Density and volume
R4B05-02-01-09 Workers should not expect any higher than ______ steps from the top of an extension ladder.
A. Three
B. Two
C. One
D. Four
A. Three
R4B05-01-05-03 A dressing tool is used to:
A. Square the edges of a grinding wheel
B. Clean the measuring contact surfaces of a micrometer
C. Clean the grooves of a file
D. Fit a new handle into a hammer head
A. Square the edges of a grinding wheel
R4B05-03-01-01 The packing gland of a hot water boiler circulating pump should have some leakage:
A. To prevent the packing from drying out
B. So that the shaft sleeve will wear instead of the shaft
C. To allow air to exit the pump, so the pump does not lose its prime
D. So the operator can tell if the sealing water is turned on
A. To prevent the packing from drying out
R4B05-01-02-02 Channels or flutes are:
A. Types of wrenches
B. Parts of a die
C. Types of punches
D. Gaps in a tap for chips
D. Gaps in a tap for chips
R4B05-01-04-02 Chalk or ______ may be used to rub on the surface of rough castings as a marking material.
A. Wax
B. Layout ink
C. Soap stone
D. Blue vitriol
C. Soap stone
R4B05-03-01-02 It is recommended that a new boiler be shut down, drained, opened up, flushed out and inspected after the first _______ of operating.
A. Two weeks
B. Three months
C. Six days
D. Three days
B. Three months
R4B05-01-04-4 Copper sulphate may be used:
A. As a thread cutting fluid
B. For lubricating very fine threads such as those in a micrometer
C. Costing tools to prevent rusting
D. As a marking or layout material
D. As a marking or layout material
When is a wet layup of a boiler useful?
A. In locations where freezing temperatures are expected
B. When the standby boilers required for service at short notice
C. When the boiler will be out of service for extended periods of time
D. Even if it is practical to employ a dry storage procedure
B. When the standby boiler is required for service at short notice
R4B05-02-03-01 Chain hoists are designed:
A. For horizontal use
B. With the top hooks as the strongest
C. With a very low mechanical advantage
D. For use when “choking” the load to be lifted
B. With the top hooks as the strongest
R4B05-03-04-01 The final step when replacing a firetube is:
A. Re-expansion
B. Hydrostatic test
C. Seal welding
D. Annealing the tube ends
B. Hydrostatic test
R4B05-02-01-08 When using a step ladder, it is best to:
A. Not work higher than the top three lungs
B. Tie off while standing on the top platform
C. Have two co-workers hold the ladder steady
D. Secure the ladder with a rope
A. Not work higher than the top three rungs
R4B05-04-04-01 Smaller boilers are not often cleaned chemically because:
A. Most small boilers are firetube designs, which are best cleaned mechanically
B. Small boilers have thin metal, and may be damaged by cleaning chemicals
C. Small boilers develop little waterside scale, because of their low steaming rates
D. The expense of chemicals, complex piping, and pumping systems may not be justified for cleaning smaller boilers
D. The expense of chemicals, complex piping, and pumping systems may not be justified for cleaning smaller boilers.
R4B05-04-01-05 When a boiler is removed from service, it can be drained once the temperature reaches approximately:
A. Room temperature
B. 50 C
C. 90’C
D. 70 C
C. 90 C
R4B05-02-01-01 A single-pile scaffold:
A. Is prohibited from use by Workplace Safety and Health
B. Is often referred to as the pogo platform
C. Is partially supposed by a building
D. Need not be plumb, but must be level
C. Is partially supported by a building
R4B05-02-01-03 Ladders that are used in the workplace should comply with:
A. CSA standards and scaffolding
B. Common industry practices
C. ASME/ANSI ladder material specifications
WCB regulations and CSA standards
D. WCB regulations and CSA standards
R4B05-02-04-02 An eye that is made in a rope, using the proper number and spacing of wire rope clips, will be _______ as strong as the rope itself.
A. 80%
B. Twice
C. Half
D. Equity
A. 80%
R4B05-04-04-02 which of the following chemicals used for boiler cleaning and treatment, that require careful control and vigilant monitoring?
A. Chelants
B. Phosphates
C. Sulfites
D. Sulfates
A. Chelants
