API 1169 COMPREHENSIVE EXAM 2026/2027
QUESTIONS AND SOLUTIONS RATED A+
✔✔Specified minimum yield strength - ✔✔SMYS
✔✔Sweep locate, pot hole, one call - ✔✔Perform these before any mechanical ground
disturbance
✔✔In grid pattern - ✔✔Line locating crews should sweep _____________
✔✔90% - ✔✔Transportation, installation or repair of pipe shall not reduce the wall
thickness at any point to a thickness of less than________ of original
✔✔36 to 1 - ✔✔Calculate the OD t WT ratio of a pipeline. OD is 36". The WT is .750"
✔✔80 - ✔✔Hearing protection during a hydro test requirement state that the protection
must be adequate to reduce the noise to at least below ____ decibels.
✔✔Pipe facing - ✔✔Lacerations from shavings, burns from hot shavings and eye
injuries from shavings are hazards of what activity?
✔✔Does not - ✔✔A pipe _________ have to be wet down and grounded in order for a
jeeping inspection to work properly.
✔✔Impressed Current - ✔✔A type of cathodic protection
✔✔American Concrete Institute - ✔✔ACI
✔✔Anode - ✔✔A sacrificial material or electrode having low eletrolytic potential. Current
flows away from the __________, causing it to corrode.
✔✔Impressed Current - ✔✔The negative terminal of a power supply is connected to the
pipe to the protected, and the positive side of power supply is connected to a sacrificial
anode, buried in the ground. The positive side of a battery is also called an anode. The
pipe becomes the cathode, or the negative side of the battery. This describes what type
of CP?
✔✔A - ✔✔Cohesive soils with unconfined strenght of 1.5 ton per sq ft or greater
✔✔A - ✔✔Soil that is clay, silty clay, sandy clay, clay loam and silty clay loam and
sandy clay loam. Also Caliche or hardpan.
✔✔B - ✔✔Cohesive soil with an unconfined compressive state greater than .5 tsf but
less than 1.5 tons per sf
,✔✔B - ✔✔Granular cohesionless soils such as angular gravel, silt, silt loam, sandy loam
and silty clay loam and sandy clay loam.
✔✔C - ✔✔Cohesive soil with an unconfined compressive strength of .5 tsf or less
✔✔C - ✔✔Granular soils including gravel sand and loamy sand.
✔✔C - ✔✔Submerged soil from which water is freely seeping
✔✔C - ✔✔Submerged rock that is not stable.
✔✔Cohesive - ✔✔Soil that remains in clumps
✔✔granular - ✔✔Soil that breaks up easily
✔✔Distress - ✔✔Soil is in condition where cave-in is imminent or is likely to occur.
Evidence by fissures, slumps or loose material rolling down.
✔✔1 1/2H: 1 V - ✔✔Slope must be cut back to______where there are signs of soil
distress.
✔✔29 CFR 1926 Pg 103 - ✔✔Standards for slope based on soil type
✔✔20 - ✔✔All trenches greater than _______ ft need a protective plan approved by a
professional engineer
✔✔5 - ✔✔Any excavations greater than _______ ft must meet OSHA standards
✔✔Unconfined compressive state - ✔✔Pressure required for soil to fail under
compression
✔✔Visual, Plasticity (Pencil), Thumb penetration, Pocket penetrometer - ✔✔Soil can be
tested by
✔✔3/4:1 - ✔✔Trench ratio for soil type A
✔✔1:1 - ✔✔Trench ratio for soil type B
✔✔1 1/2: 1 - ✔✔Trench ratio for soil type C
✔✔A - ✔✔For type ______, the Top width = 1.5 x depth + bottom width
, ✔✔B - ✔✔For Type ______ soil, Top width = 2 x depth + bottom width.
✔✔C - ✔✔For type _______ soil, 3 x depth + bottom width
✔✔Tag or documents certifying it has been inspected - ✔✔What has to be present for a
shoring box to be usable.
✔✔Table C-1.1 of 29 CFR 1926 - ✔✔Timber Trench Shorting standards can be found in
_______
✔✔A - ✔✔Class ____ explosives possessing detonating hazard such as dynatime,
nitroglycerin, picric acid, lead azide, fulmite or of mercury, black powder, blasting caps
and detonating primers.
✔✔B - ✔✔Class ________ explosives -Possessing flammable hazards such as
propellant explosives, including some smokeless propellants.
✔✔C - ✔✔Class _____ explosives - Includes certain types of manufactured articles
which contain Class A or Class B explosives or both as components but in restricted
quantities.
✔✔Casing - ✔✔A transmission line crossing under a railroad must have _______.
✔✔Superimposed Loads - ✔✔Casing protecting a transmission line under a rail road
must withstand________.
✔✔Ends must be sealed - ✔✔If there is a possibility of water entering the casing for a
transmission line under a railroad then the _________.
✔✔72/SMYS - ✔✔If the ends of an unvented casing are sealed and the sealing is
strong enough to retain the MAOP, the casing must be designed to hold this pressure at
a stress level of not more than ________ % of________.
49 CFR 192.323
✔✔12 - ✔✔Each transmission line must have _________ inches of clearance from any
other underground utility not related to the transmission line.
✔✔The transmission line must be protected.
Subpart G 192.325 - ✔✔If 12 in clearance cannot be sustained between a transmission
line and other utilities then the _________
Standard?
QUESTIONS AND SOLUTIONS RATED A+
✔✔Specified minimum yield strength - ✔✔SMYS
✔✔Sweep locate, pot hole, one call - ✔✔Perform these before any mechanical ground
disturbance
✔✔In grid pattern - ✔✔Line locating crews should sweep _____________
✔✔90% - ✔✔Transportation, installation or repair of pipe shall not reduce the wall
thickness at any point to a thickness of less than________ of original
✔✔36 to 1 - ✔✔Calculate the OD t WT ratio of a pipeline. OD is 36". The WT is .750"
✔✔80 - ✔✔Hearing protection during a hydro test requirement state that the protection
must be adequate to reduce the noise to at least below ____ decibels.
✔✔Pipe facing - ✔✔Lacerations from shavings, burns from hot shavings and eye
injuries from shavings are hazards of what activity?
✔✔Does not - ✔✔A pipe _________ have to be wet down and grounded in order for a
jeeping inspection to work properly.
✔✔Impressed Current - ✔✔A type of cathodic protection
✔✔American Concrete Institute - ✔✔ACI
✔✔Anode - ✔✔A sacrificial material or electrode having low eletrolytic potential. Current
flows away from the __________, causing it to corrode.
✔✔Impressed Current - ✔✔The negative terminal of a power supply is connected to the
pipe to the protected, and the positive side of power supply is connected to a sacrificial
anode, buried in the ground. The positive side of a battery is also called an anode. The
pipe becomes the cathode, or the negative side of the battery. This describes what type
of CP?
✔✔A - ✔✔Cohesive soils with unconfined strenght of 1.5 ton per sq ft or greater
✔✔A - ✔✔Soil that is clay, silty clay, sandy clay, clay loam and silty clay loam and
sandy clay loam. Also Caliche or hardpan.
✔✔B - ✔✔Cohesive soil with an unconfined compressive state greater than .5 tsf but
less than 1.5 tons per sf
,✔✔B - ✔✔Granular cohesionless soils such as angular gravel, silt, silt loam, sandy loam
and silty clay loam and sandy clay loam.
✔✔C - ✔✔Cohesive soil with an unconfined compressive strength of .5 tsf or less
✔✔C - ✔✔Granular soils including gravel sand and loamy sand.
✔✔C - ✔✔Submerged soil from which water is freely seeping
✔✔C - ✔✔Submerged rock that is not stable.
✔✔Cohesive - ✔✔Soil that remains in clumps
✔✔granular - ✔✔Soil that breaks up easily
✔✔Distress - ✔✔Soil is in condition where cave-in is imminent or is likely to occur.
Evidence by fissures, slumps or loose material rolling down.
✔✔1 1/2H: 1 V - ✔✔Slope must be cut back to______where there are signs of soil
distress.
✔✔29 CFR 1926 Pg 103 - ✔✔Standards for slope based on soil type
✔✔20 - ✔✔All trenches greater than _______ ft need a protective plan approved by a
professional engineer
✔✔5 - ✔✔Any excavations greater than _______ ft must meet OSHA standards
✔✔Unconfined compressive state - ✔✔Pressure required for soil to fail under
compression
✔✔Visual, Plasticity (Pencil), Thumb penetration, Pocket penetrometer - ✔✔Soil can be
tested by
✔✔3/4:1 - ✔✔Trench ratio for soil type A
✔✔1:1 - ✔✔Trench ratio for soil type B
✔✔1 1/2: 1 - ✔✔Trench ratio for soil type C
✔✔A - ✔✔For type ______, the Top width = 1.5 x depth + bottom width
, ✔✔B - ✔✔For Type ______ soil, Top width = 2 x depth + bottom width.
✔✔C - ✔✔For type _______ soil, 3 x depth + bottom width
✔✔Tag or documents certifying it has been inspected - ✔✔What has to be present for a
shoring box to be usable.
✔✔Table C-1.1 of 29 CFR 1926 - ✔✔Timber Trench Shorting standards can be found in
_______
✔✔A - ✔✔Class ____ explosives possessing detonating hazard such as dynatime,
nitroglycerin, picric acid, lead azide, fulmite or of mercury, black powder, blasting caps
and detonating primers.
✔✔B - ✔✔Class ________ explosives -Possessing flammable hazards such as
propellant explosives, including some smokeless propellants.
✔✔C - ✔✔Class _____ explosives - Includes certain types of manufactured articles
which contain Class A or Class B explosives or both as components but in restricted
quantities.
✔✔Casing - ✔✔A transmission line crossing under a railroad must have _______.
✔✔Superimposed Loads - ✔✔Casing protecting a transmission line under a rail road
must withstand________.
✔✔Ends must be sealed - ✔✔If there is a possibility of water entering the casing for a
transmission line under a railroad then the _________.
✔✔72/SMYS - ✔✔If the ends of an unvented casing are sealed and the sealing is
strong enough to retain the MAOP, the casing must be designed to hold this pressure at
a stress level of not more than ________ % of________.
49 CFR 192.323
✔✔12 - ✔✔Each transmission line must have _________ inches of clearance from any
other underground utility not related to the transmission line.
✔✔The transmission line must be protected.
Subpart G 192.325 - ✔✔If 12 in clearance cannot be sustained between a transmission
line and other utilities then the _________
Standard?
