Ref-B practice exam IFC (2025) QUESTIONS AND
ALL CORRECT ANSWERS 100% SOLVED AND
GUARANTEED SUCCESS!!
A 3 n copper bar is heated from 25'C to 175'C. After heating it increases in length
by 1.45 mm. What is the coefficient of linear expansion?
a) 0.0000032/'C
b) 0.0000256/'c
c) 0.0000012/'C
d) 0.0000025/'C - answer--A {delta length = length original * coefficient * delta
temperature}
Heat, whose application causes a ride in temperature, is called _____ - answer--
Sensible heat
The rate at which a system will remove heat from the refrigerated medium is
defined as ____ - answer--Refrigeration capacity or net refrigeration effect
One tonne or refrigeration is defined as
a) 13958 KJ per day
b) 100 KJ per minute
c) 233 kJ per minute
d) 13958 J per hour
e) 335 J per second - answer--C
,If chilled water at 2'C circulates through an evaporator and then is used in a
cooling coil to cool an air duct, you would expect the evaporator temperature to
be
a) less than 2'C
b) at 2'C
c) slightly higher than 2'C
d) much higher than 2'C
e) unknown - answer--A
The temperature at which a liquid refrigerant evaporates is dependent on the
_____ - answer--Temperature and pressure of the refrigerant in the evaporator
Latent heat may be defined further with respect to the states or the substance
changing phase. Name the type of latent heat required to change ice from a solid
state to a liquid state or from a liquid state to a solid state. - answer--Fusion
Explain how the temperature at which a refrigerant boils in a refrigeration system
is controlled. - answer--Controlled by having an expansion valve at the inlet of the
evaporator and a thermostat on the medium to be cooled. Based on the set point
of the thermostat, the slow rate through the expansion valve is controlled
What is a jurisdiction? - answer--Each province and territory is its own jurisdiction
Explain the intent of the regulation's governing the operation of boilers and
pressure equipment? - answer--To give the director or administrator of the
department or branch or government a means of evolving, within the framework
of the intent of the act, to meet changes in technology, concept, and the use of
those variables listed within the scope of the act.
,Is it more difficult to change an act or a regulation? - answer--The main or primary
document is an "act" which must be passed through the jurisdictional legislature.
The act then has "regulations" which are pursuant to the enforcement of the act.
These regulations are usually under the governance of an official of the
government rather than the actual legislature. As a result, it is much easier to
have changes made to a regulation than it is to have changes made to an act.
What jurisdictional item or legislation is most important to a person interning time
make power engineering a career choice? - answer--Power engineers acts and
regulations
What two Canadian national codes have been adopted by all jurisdictions -
answer--CSA B51 and CSA B52
List some of the penalties which may be applied to the holder of a certificate of
competency - answer--The regulation will also refer to penalties which may be
listed in the pertinent jurisdictional act. These can be fines, certificate
suspensions, certificate cancellations, imprisonment.
List types of pressure vessels discussed in the CSA B51 section entitled "pressure
vessels" - answer--Blowoff vessels, hot water tanks, hydropneumatic tanks, and
cushion tanks
Explain the two purposes of the CSA B52 code - answer--To provide for the safe
design, construction, installation, operation, and repair of refrigerating and air
conditioning equipment and systems, and related equipment. To promote uniform
requirements among the provinces and territories.
, Describe the purpose of ASME Section VI - recommended rules for the care and
operation of heating boilers and explain how this purpose is achieved. - answer--
This code contains rules that have been compiled to assist operators of heating
boilers in maintaining their plants in as safe a condition as possible. These rules
apply to the boiler proper and to pipe connections up to and including the value
of valves required by the ASME code. Rules are also given covering auxiliary
equipment in so far as safety is concerned
What recommended procedures are covered in ASME Section VI - recommended
rules for the care and operation of heating boilers pertaining to the treatment of
water in steam and hot water heating boilers? - answer--These recommended
procedures cover the treatment of water in steam and hot water boilers. They
cover boiler water troubles, chemicals used, function of chemicals, treatment
alternatives, blowdown, feeders, and procedures
Which of the following items are covered in the appendix or the ASME Boiler and
Pressure Vessel Code, Section IV - Heating Boilers?
a) approval of new materials under code
b) porosity charts for weld radiography
c) manufacturer's data report forms and guides
d) all of the above - answer--D
Which of the ASME codes deal with some conditions which are not encountered
in Section I - Power Boilers?
a) section VI
b) section IV
ALL CORRECT ANSWERS 100% SOLVED AND
GUARANTEED SUCCESS!!
A 3 n copper bar is heated from 25'C to 175'C. After heating it increases in length
by 1.45 mm. What is the coefficient of linear expansion?
a) 0.0000032/'C
b) 0.0000256/'c
c) 0.0000012/'C
d) 0.0000025/'C - answer--A {delta length = length original * coefficient * delta
temperature}
Heat, whose application causes a ride in temperature, is called _____ - answer--
Sensible heat
The rate at which a system will remove heat from the refrigerated medium is
defined as ____ - answer--Refrigeration capacity or net refrigeration effect
One tonne or refrigeration is defined as
a) 13958 KJ per day
b) 100 KJ per minute
c) 233 kJ per minute
d) 13958 J per hour
e) 335 J per second - answer--C
,If chilled water at 2'C circulates through an evaporator and then is used in a
cooling coil to cool an air duct, you would expect the evaporator temperature to
be
a) less than 2'C
b) at 2'C
c) slightly higher than 2'C
d) much higher than 2'C
e) unknown - answer--A
The temperature at which a liquid refrigerant evaporates is dependent on the
_____ - answer--Temperature and pressure of the refrigerant in the evaporator
Latent heat may be defined further with respect to the states or the substance
changing phase. Name the type of latent heat required to change ice from a solid
state to a liquid state or from a liquid state to a solid state. - answer--Fusion
Explain how the temperature at which a refrigerant boils in a refrigeration system
is controlled. - answer--Controlled by having an expansion valve at the inlet of the
evaporator and a thermostat on the medium to be cooled. Based on the set point
of the thermostat, the slow rate through the expansion valve is controlled
What is a jurisdiction? - answer--Each province and territory is its own jurisdiction
Explain the intent of the regulation's governing the operation of boilers and
pressure equipment? - answer--To give the director or administrator of the
department or branch or government a means of evolving, within the framework
of the intent of the act, to meet changes in technology, concept, and the use of
those variables listed within the scope of the act.
,Is it more difficult to change an act or a regulation? - answer--The main or primary
document is an "act" which must be passed through the jurisdictional legislature.
The act then has "regulations" which are pursuant to the enforcement of the act.
These regulations are usually under the governance of an official of the
government rather than the actual legislature. As a result, it is much easier to
have changes made to a regulation than it is to have changes made to an act.
What jurisdictional item or legislation is most important to a person interning time
make power engineering a career choice? - answer--Power engineers acts and
regulations
What two Canadian national codes have been adopted by all jurisdictions -
answer--CSA B51 and CSA B52
List some of the penalties which may be applied to the holder of a certificate of
competency - answer--The regulation will also refer to penalties which may be
listed in the pertinent jurisdictional act. These can be fines, certificate
suspensions, certificate cancellations, imprisonment.
List types of pressure vessels discussed in the CSA B51 section entitled "pressure
vessels" - answer--Blowoff vessels, hot water tanks, hydropneumatic tanks, and
cushion tanks
Explain the two purposes of the CSA B52 code - answer--To provide for the safe
design, construction, installation, operation, and repair of refrigerating and air
conditioning equipment and systems, and related equipment. To promote uniform
requirements among the provinces and territories.
, Describe the purpose of ASME Section VI - recommended rules for the care and
operation of heating boilers and explain how this purpose is achieved. - answer--
This code contains rules that have been compiled to assist operators of heating
boilers in maintaining their plants in as safe a condition as possible. These rules
apply to the boiler proper and to pipe connections up to and including the value
of valves required by the ASME code. Rules are also given covering auxiliary
equipment in so far as safety is concerned
What recommended procedures are covered in ASME Section VI - recommended
rules for the care and operation of heating boilers pertaining to the treatment of
water in steam and hot water heating boilers? - answer--These recommended
procedures cover the treatment of water in steam and hot water boilers. They
cover boiler water troubles, chemicals used, function of chemicals, treatment
alternatives, blowdown, feeders, and procedures
Which of the following items are covered in the appendix or the ASME Boiler and
Pressure Vessel Code, Section IV - Heating Boilers?
a) approval of new materials under code
b) porosity charts for weld radiography
c) manufacturer's data report forms and guides
d) all of the above - answer--D
Which of the ASME codes deal with some conditions which are not encountered
in Section I - Power Boilers?
a) section VI
b) section IV
