ABSA B1 Study Bank |425 Questions with accurate
answers
_____ storage is preferable for boilers that are out of service for an
extended period of time or in locations where freezing temperatures.
a. Dry
b. Short
c. Wet
d. Long Ans✓✓✓ a
______ is particularly harmful as it forms a very hard deposit on turbine
blades.
a. Carryover
b. mist
c,. silica
d. phosphate Ans✓✓✓ c
_______ makes use of short wave length radiations such as x-rays and
gamma rays to penetrate the weld.
a. Ultrasonic inspection
b. Radiographic inspection
c. Tensile testing
d. Dye penetrant testing
e. Binding testing Ans✓✓✓ b
,________ happens when the pressure, at any point inside a centrifugal
pump, drops below the vapour pressure of the liquid, vapour bubbles
will form, creating cavities in the liquid flow.
a. Cavitation
b. Surging
c. priming
d. chirping Ans✓✓✓ a
________ is the result of dissolved air or oxygen in the feedwater.
a. Scale
b. Pitting
c. Cracking
d. Bulging Ans✓✓✓ b
________ welding keeps the atmosphere from the weld bead by a
blanket of granular flux.
a. Fusion
b. Shielded metal arc
c. Machine
d. Submerged arc
e. Manual Ans✓✓✓ d
_________ explosions, occur when a pressure part of the boiler, such as
the steam drum, fails due to steam pressure, or a structural weakening of
the metal.
,a. Furnace
b. Pressure
c. Gas
d. water Ans✓✓✓ b
_________ is an excess of deposit metal, which is not fused to the base
metal.
a. Fusion
b. undercut
c. overlap
d. underfill Ans✓✓✓ c
_________ is any solid, liquid or vaporous contaminants that leaves the
boiler with the steam.
a. Carryover
b. Blowdown
c. Feedwater
d. Mist Ans✓✓✓ a
_________ testing involves the pressurization of a vessel with a
compressible gas, such as air or nitrogen, to determine if any leaks are
present.
a. Hydrostatic
b. Pneumatic
, c. Radiography
d. Magparticle Ans✓✓✓ b
__________ _______ are leak proof containers that have an internal or
external operating pressure.
a. Pressure vessels
b. Fired boilers
c. Fractionation towers
d. Milk cartons Ans✓✓✓ a
__________ are chemicals, which cause the fine particles to gather
together into a larger mass, which will settle out much more readily.
a. Caustic
b. Coagulants
c. Acids
d. Dissolvers Ans✓✓✓ b
__________ boilers must be built Or put together in the field [field
erected]
A recovery
B sectional
C larger
D Package Ans✓✓✓ C
answers
_____ storage is preferable for boilers that are out of service for an
extended period of time or in locations where freezing temperatures.
a. Dry
b. Short
c. Wet
d. Long Ans✓✓✓ a
______ is particularly harmful as it forms a very hard deposit on turbine
blades.
a. Carryover
b. mist
c,. silica
d. phosphate Ans✓✓✓ c
_______ makes use of short wave length radiations such as x-rays and
gamma rays to penetrate the weld.
a. Ultrasonic inspection
b. Radiographic inspection
c. Tensile testing
d. Dye penetrant testing
e. Binding testing Ans✓✓✓ b
,________ happens when the pressure, at any point inside a centrifugal
pump, drops below the vapour pressure of the liquid, vapour bubbles
will form, creating cavities in the liquid flow.
a. Cavitation
b. Surging
c. priming
d. chirping Ans✓✓✓ a
________ is the result of dissolved air or oxygen in the feedwater.
a. Scale
b. Pitting
c. Cracking
d. Bulging Ans✓✓✓ b
________ welding keeps the atmosphere from the weld bead by a
blanket of granular flux.
a. Fusion
b. Shielded metal arc
c. Machine
d. Submerged arc
e. Manual Ans✓✓✓ d
_________ explosions, occur when a pressure part of the boiler, such as
the steam drum, fails due to steam pressure, or a structural weakening of
the metal.
,a. Furnace
b. Pressure
c. Gas
d. water Ans✓✓✓ b
_________ is an excess of deposit metal, which is not fused to the base
metal.
a. Fusion
b. undercut
c. overlap
d. underfill Ans✓✓✓ c
_________ is any solid, liquid or vaporous contaminants that leaves the
boiler with the steam.
a. Carryover
b. Blowdown
c. Feedwater
d. Mist Ans✓✓✓ a
_________ testing involves the pressurization of a vessel with a
compressible gas, such as air or nitrogen, to determine if any leaks are
present.
a. Hydrostatic
b. Pneumatic
, c. Radiography
d. Magparticle Ans✓✓✓ b
__________ _______ are leak proof containers that have an internal or
external operating pressure.
a. Pressure vessels
b. Fired boilers
c. Fractionation towers
d. Milk cartons Ans✓✓✓ a
__________ are chemicals, which cause the fine particles to gather
together into a larger mass, which will settle out much more readily.
a. Caustic
b. Coagulants
c. Acids
d. Dissolvers Ans✓✓✓ b
__________ boilers must be built Or put together in the field [field
erected]
A recovery
B sectional
C larger
D Package Ans✓✓✓ C
