Part B ABSA UPDATED ACTUAL
Questions and CORRECT Answers
The pressure exerted at the base of a column of liquid, measured in metres - CORRECT
ANSWER - Static Head
The pressure produced by a column of liquid due to its height and density - CORRECT
ANSWER - Pressure Head
The pressure of pumping system that varies with changes in fluid velocity. This includes velocity
head and friction head - CORRECT ANSWER - Dynamic Head
The sum of tat; static head and dynamic head - CORRECT ANSWER - Total Dynamic
Head
The vertical distance between the liquid surface of the supply tank to the liquid surface in a
discharge tank - CORRECT ANSWER - Total Static Head
The activity of adding a previously previously non-operating piece of equipment, such as a
boiler, into a system that is already in operation - CORRECT ANSWER - Cutting In
Continuous formation of bubbles with sufficiently high surface tension, so they remain as
bubbles above the disengaging surface. This interferes with the natural steam disengagement
process and can result in priming - CORRECT ANSWER - Foaming
With regard to boiler operation, an undesirable condition, in which excess quantities of water are
carried along with the steam to the outlet - CORRECT ANSWER - Priming
A term used to describe the rotational movement of a fan or turbine that is not receiving power -
CORRECT ANSWER - Windmilling
,A measure of the resistance of a liquid to internal deformation or shear. It indicates the liquid's
ability to flow - CORRECT ANSWER - Viscosity
The viscosity index is a measurement of how much the viscosity of a certain oil changes with
temperature change - CORRECT ANSWER - Viscosity Index
The pour point of an oil is the lowest temperature at which the oil will flow - CORRECT
ANSWER - Pour Point
The temperature at which the oil will give off sufficient vapor to ignite momentarily when mixed
with air and exposed to a source of ignition - CORRECT ANSWER - Flash Point
The temperature at which enough vapor is given off to burn continuously - CORRECT
ANSWER - Fire Point
The temperature at which the wax in the oil will separate out - CORRECT ANSWER -
Floc Point
A pressure test on a boiler or vessel to test for leaks or strength. The vessel is completely filled
with water, and the pressure is raised to 1.5 times the maximum allowable working pressure -
CORRECT ANSWER - Hydrostatic Test
The entrainment of water droplets in the steam leaving the boiler drum - CORRECT
ANSWER - Carryover
The measure of the degree to which water loses its transparency due to the presence of
suspended particulates - CORRECT ANSWER - Turbidity
Refers to lubrication where the surfaces are separated by only a microscopic film thickness of the
lubricant - CORRECT ANSWER - Brinelling (also known as True Brinelling)
, Occurs in stationary bearings subjected to vibration. It produces indentations in the surfaces that
have contact with the balls or rollers and it resembles true brinelling - CORRECT
ANSWER - False Brinelling
A machine that converts a naturally occurring source of energy into mechanical energy -
CORRECT ANSWER - Prime Movers
A machine, or assembly of machinery, that converts heat energy to mechanical energy through a
series or repetitive thermodynamic operations, such as combustion, compression, expansion,
boiling, condensation and cooling - CORRECT ANSWER - Heat Engines
The part of a crankshaft to which the connecting rod is attached - CORRECT ANSWER -
Crank Pin
A rod that connects a piston to a crosshead, and transmits force to or from the piston and a
cylinder wall, to prevent leakage - CORRECT ANSWER - Piston Rod
A rod connecting a piston and a crankshaft in a prime mover, pump, or compressor - CORRECT
ANSWER - Connecting Rod
A mechanical device used to convert reciprocating motion to rotary motion or vice-versa -
CORRECT ANSWER - Crankshaft
A flat block between a piston rod and a connecting rod. It eliminates lateral force on the piston. It
is found in some reciprocating engines, pumps, and compressors - CORRECT ANSWER -
Crosshead
A mechanism affixed to a prime mover to control its power output in proportion to its
load(Speed Control) - CORRECT ANSWER - Governor
Questions and CORRECT Answers
The pressure exerted at the base of a column of liquid, measured in metres - CORRECT
ANSWER - Static Head
The pressure produced by a column of liquid due to its height and density - CORRECT
ANSWER - Pressure Head
The pressure of pumping system that varies with changes in fluid velocity. This includes velocity
head and friction head - CORRECT ANSWER - Dynamic Head
The sum of tat; static head and dynamic head - CORRECT ANSWER - Total Dynamic
Head
The vertical distance between the liquid surface of the supply tank to the liquid surface in a
discharge tank - CORRECT ANSWER - Total Static Head
The activity of adding a previously previously non-operating piece of equipment, such as a
boiler, into a system that is already in operation - CORRECT ANSWER - Cutting In
Continuous formation of bubbles with sufficiently high surface tension, so they remain as
bubbles above the disengaging surface. This interferes with the natural steam disengagement
process and can result in priming - CORRECT ANSWER - Foaming
With regard to boiler operation, an undesirable condition, in which excess quantities of water are
carried along with the steam to the outlet - CORRECT ANSWER - Priming
A term used to describe the rotational movement of a fan or turbine that is not receiving power -
CORRECT ANSWER - Windmilling
,A measure of the resistance of a liquid to internal deformation or shear. It indicates the liquid's
ability to flow - CORRECT ANSWER - Viscosity
The viscosity index is a measurement of how much the viscosity of a certain oil changes with
temperature change - CORRECT ANSWER - Viscosity Index
The pour point of an oil is the lowest temperature at which the oil will flow - CORRECT
ANSWER - Pour Point
The temperature at which the oil will give off sufficient vapor to ignite momentarily when mixed
with air and exposed to a source of ignition - CORRECT ANSWER - Flash Point
The temperature at which enough vapor is given off to burn continuously - CORRECT
ANSWER - Fire Point
The temperature at which the wax in the oil will separate out - CORRECT ANSWER -
Floc Point
A pressure test on a boiler or vessel to test for leaks or strength. The vessel is completely filled
with water, and the pressure is raised to 1.5 times the maximum allowable working pressure -
CORRECT ANSWER - Hydrostatic Test
The entrainment of water droplets in the steam leaving the boiler drum - CORRECT
ANSWER - Carryover
The measure of the degree to which water loses its transparency due to the presence of
suspended particulates - CORRECT ANSWER - Turbidity
Refers to lubrication where the surfaces are separated by only a microscopic film thickness of the
lubricant - CORRECT ANSWER - Brinelling (also known as True Brinelling)
, Occurs in stationary bearings subjected to vibration. It produces indentations in the surfaces that
have contact with the balls or rollers and it resembles true brinelling - CORRECT
ANSWER - False Brinelling
A machine that converts a naturally occurring source of energy into mechanical energy -
CORRECT ANSWER - Prime Movers
A machine, or assembly of machinery, that converts heat energy to mechanical energy through a
series or repetitive thermodynamic operations, such as combustion, compression, expansion,
boiling, condensation and cooling - CORRECT ANSWER - Heat Engines
The part of a crankshaft to which the connecting rod is attached - CORRECT ANSWER -
Crank Pin
A rod that connects a piston to a crosshead, and transmits force to or from the piston and a
cylinder wall, to prevent leakage - CORRECT ANSWER - Piston Rod
A rod connecting a piston and a crankshaft in a prime mover, pump, or compressor - CORRECT
ANSWER - Connecting Rod
A mechanical device used to convert reciprocating motion to rotary motion or vice-versa -
CORRECT ANSWER - Crankshaft
A flat block between a piston rod and a connecting rod. It eliminates lateral force on the piston. It
is found in some reciprocating engines, pumps, and compressors - CORRECT ANSWER -
Crosshead
A mechanism affixed to a prime mover to control its power output in proportion to its
load(Speed Control) - CORRECT ANSWER - Governor
