4TH CLASS ABSA EXAM PART A PRACTICE EXAM 2026 | ACTUAL EXAM QUESTIONS AND CORRECT ANSWERS | VERIFIED ANSWERS | UPDATED VERSION

8/26/26, 11:50 AM 4TH CLASS ABSA EXAM PART A PRACTICE EXAM 2026 | ACTUAL EXAM QUESTIONS AND CORRECT ANSWERS | VERIFIE…




4TH CLASS ABSA EXAM PART A PRACTICE EXAM
2026 | ACTUAL EXAM QUESTIONS AND
CORRECT ANSWERS | VERIFIED ANSWERS |
UPDATED VERSION




Terms in this set (1032)



Which of the following pump designs 5. volute pump
has a spiral casing with an increasing
cross sectional area?
1. rotary pump
2. rotary gear pump
3. rotary lobe pump
4. reciprocating pump
5. volute pump


A clear line of sight to the flame is 1. Flame scanner
required by a(n):
1. Flame scanner
2. Thermopile
3. Flame rod
4. Thermocouple
5. All of the above




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A ____ is installed to start a large 5. compressed air starting motor
diesel engine.
1. electric starting motor
2. induced oil pump
3. forced oil pump
4. jacking oil pump
5. compressed air starting motor




The ____ is installed in an absorption 5. generator (concentrator)
system to increase the absorption
limit of the lithium bromide solution.
1. absorber
2. condenser
3. generator pump
4. evaporator
5. generator (concentrator)


Steam heating boilers with minimal 5. weekly
makeup water needs, require the
boiler gauge glass to be tested ____.
1. quarterly
2. every shift
3. daily
4. annually
5. weekly



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To prime a pump you would: 2. fill the pump casing with the product to be
1. verify that the suction valve is pumped to vent the entrapped air out of the pump
closed casing prior to start up
2. fill the pump casing with the
product to be pumped to vent the
entrapped air out of the pump
casing prior to start up
3. verify that the breaker is open
4. vent the entrapped liquid out of
the pump casing to fill it with air.
5. verify that the discharge valve is
open


Air receivers are required ____. 1. to have a safety valve installed
1. to have a safety valve installed
2. to have a sentinel valve installed
3. to have a surge valve installed
4. to have a rupture disc installed
5. to have a dewpoint analyzer
installed


The machinist's hammer is also 4. ball peen hammer
referred to as a ____.
1. thread hammer
2. precision hammer
3. flute hammer
4. ball peen hammer
5. micrometer




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A ____ is a device installed on a pump 3. slinger
to protect bearings from stuffing
box water leakage.
1. sorbent
2. shaft sleeve
3. slinger
4. coupling
5. lantern ring


____ in pumps is when the pressure in 5. Cavitation
the suction line to the pump drops
below the vapour pressure of the
liquid.
1. Purging
2. Priming
3. Surging
4. Hammering
5. Cavitation


Plant fire suppression systems have 1. fire pumps
____ installed.
1. fire pumps
2. circulating water pumps
3. circulating oil pumps
4. chemical feed pumps


Maintaining minimal usage of make- 5. low concentrations of oxygen
up water is the most effective way to
keep ____ within the boiler.
1. swell and shrinkage from occurring
2. high concentrations of oxygen
3. carryover
4. high water levels
5. low concentrations of oxygen



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