DOT question bank QUESTIONS AND WELL DETAILED ANSWERS 2026/2027
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1. What minimum PaO2 level is necessary if the driver has an ABG due to a
chronic respiratory disorder? a. 70 mm Hg b. 55 mm Hg c. 60 mm Hg d. 65
mmHgANSWER Correct answer is "D". To be qualified, the driver should meet a minimum
arterial blood gas (PaO2)
greater than 65.
2. A driver first perceives a whispered voice at 5 feet in his right ear and 4 feet
in his left ear. All other aspects of his physical examination are unremarkable.
The examinershouldANSWER a. Permanently disqualify the driver because he "failed"
the whispered voice test. b. Certify the driver for 2 years. c. Certify the driver
for 1 year. d. Require an audiometric test to determine the extent of hearing
loss in his leftear.ANSWER Correct answer is "B". The driver is qualified to drive without
restriction as long as he is
able to perceive a whispered voice at 5 feet in 1 ear.
3. A driver reports for an examination 6 weeks after suffering a mild heart
attack and presents a note from his cardiologist stating that he is able to
return to work immediately without restriction. Included within the note,
the cardiologist provides recent testing information showing that the driver
had an ETT that showed he was able to reach 12 METS during the test. His
echocardiogram showed an ejection fraction of 65%. The examination of the
driver is unremarkable. The examiner shouldANSWER a. Temporarily disqualify the
driver. b. Qualify the driver for 1 year. c. Qualify the driver for 2 years. d. Consult
with the cardiologist to determine if the driver suffers from anginaANSWER Correct answer
is "A". The driver has not completed the required 2-monthwaiting period, but all other
requirements for medical
clearance and required testing have been met. The driver would be certified for 1 year at the
completion of the
,DOT question bank QUESTIONS AND WELL DETAILED ANSWERS 2026/2027
waiting period. The date of the certification would be from the date of the original examination.
4. A driver provides an audiometric test documenting the followingANSWER 1. 500
HzANSWER 35 Right ear; 40 Left ear 2. 1000 HZANSWER 40 Right ear; 45 Leftear 3. 2000
HZANSWER
40 Right ear; 45 Leftear 4. 4000 HzANSWER 50 Right ear; 50 Left ear The medical
examinershouldANSWER a. Disqualify the driver because he does not meet minimum
hearing requirementsto drive. b. Certify the driver for 2years. c. Certify the
driver for 1 year. d. Require the driver to obtain a hearing exemptionANSWER Correct
answer is "B". The examiner would average the results from 500 Hz, 1000 Hz and 2000 Hz. This
average is 38.33 in
the Right and 43.33 in the Left ear. A driver must have an average hearing loss of less than or
equal to 40 in the better
ear. This does not have to be met in both ears.
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5. During the examination of a commercial driver, the examiner notices that
the driver's peripheral vision is 70 degrees to the left and 80 degrees to the
right. The examiner shouldANSWER a. Qualify the driver for 2years. b. Require the
driver to obtain a vision exemption because of the limitation in the driver's
left peripheral field. c. Disqualify the driver. d. Have the driver consult with
an Ophthalmologist to determine if the driver's peripheral vision meets min
imum standards.ANSWER Correct answer is "A". A driver must exhibit a minimum peripheral
vision of 70 degrees
bilaterally.
6. During examination, the medical examiner notices that the driver is distant,
lacks eye contact and shows absolutely no emotional response during the
,DOT question bank QUESTIONS AND WELL DETAILED ANSWERS 2026/2027
exam. The examiner's best response should beANSWER a. Provide the driver with a
"CAGE" questionnaire to determine if he suffers from alcoholism. b. Disqualify
the driver and refer him to a mental health professional prior to consideration
for certification. c. Certify the driver with a 1-time, 3-month certificate to
determine if there is any effect on the driver's ability to drive a CMV. d. Require
a skill performance evaluation to ascertain if the driver has any limitations
with driving.ANSWER Correct answer is "B". The driver exhibits what may be considered a "flat
affect" which is seen in
schizophrenia and in severe depression. The driver should be evaluated by a mental health
expert to make a diagnosis
prior to certification.
7. A driver admits to the use of marijuana for the treatment of his glaucoma,
which is legal in the State in which he lives. He provides medical documenta
tion for the glaucoma indicating he is able todrive a truck. He began using
the marijuana about three months ago. His current medical card has no
limitations listed and is for 2 years. His certification examination is within
normal limits. The medical examinershouldANSWERANSWER Disqualify the driver. b. Perform a
urine drug
collection and provide the release from the testing provider. c. Certify the driver for 1 year. d.
Certify the driver for 2
years. Correct answer is "A". Use of marijuana is prohibited by Federal law while driving a CMV
and trumps State law
in this matter.
8. A driver has a blood pressure of 136/92 mm Hg. This isANSWER a. Within normal
limits and would not affect the driver's certification. b. Stage 1Hypertension.
c. Stage 2Hypertension. d. Stage 3Hypertension.ANSWER Correct answer is "B". This is Stage 1
Hypertension, which is defined as 140-159/90 - 99.
, DOT question bank QUESTIONS AND WELL DETAILED ANSWERS 2026/2027
DOT question bank
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9. A driver is taking Celexa for the treatment of what he calls a "mild depres
sion." He reports he has not considered or attempted suicide. The examiner
should? a. Temporarily disqualify the driver until he obtains written clearance
for the depression and the medication from the treating provider. b. Certify
the driver for a period of 1 year. c. Certify the driver for a period of 2 years.
d. Disqualify the driver until he is no longer requiring medication for the
treatmentof depression.ANSWER Correct answer is "A". Medical clearance is required for all
mental health
disorders. Celexa is an SSRI or 2nd Generation anti-depressant and is acceptable.
10. A driver reports that he had a hunting accident wherein he suffered a left
orbital fracture. He presents a note at the time of the examination from an
ophthalmologist stating "may drive". His exam is unremarkable except for
a limitation in peripheral vision in his left eye, which was inconclusive. His
distance vision was 20/20 right and 20/40 left. The medical examinershould? a.
Council the driver on the need for a vision exemption. b. Disqualify the driver
pending vision exam to determine ifit meets peripheral vision requirements.
c. Certify the driver for 1 year. d. Certify the driver for 2 years.ANSWER Correct answer is "B".
The driver must have a peripheral vision of 70 degrees bilaterally to certify to drive a CMV.
11. What minimum PaO2 level on an ABG performed for a chronic respiratory
disorder is necessary to certify a commercial driver? a. 55 mm Hg. b. 60 mm
Hg. c. 65 mm Hg. d. 70 mm HgANSWER Correct answer is "C". Blood oxygen saturation must be
a minimum
of 65 mm Hg for the driver to certify.
12. A driver is taking Topamax for the treatment of migraine headaches. He
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1. What minimum PaO2 level is necessary if the driver has an ABG due to a
chronic respiratory disorder? a. 70 mm Hg b. 55 mm Hg c. 60 mm Hg d. 65
mmHgANSWER Correct answer is "D". To be qualified, the driver should meet a minimum
arterial blood gas (PaO2)
greater than 65.
2. A driver first perceives a whispered voice at 5 feet in his right ear and 4 feet
in his left ear. All other aspects of his physical examination are unremarkable.
The examinershouldANSWER a. Permanently disqualify the driver because he "failed"
the whispered voice test. b. Certify the driver for 2 years. c. Certify the driver
for 1 year. d. Require an audiometric test to determine the extent of hearing
loss in his leftear.ANSWER Correct answer is "B". The driver is qualified to drive without
restriction as long as he is
able to perceive a whispered voice at 5 feet in 1 ear.
3. A driver reports for an examination 6 weeks after suffering a mild heart
attack and presents a note from his cardiologist stating that he is able to
return to work immediately without restriction. Included within the note,
the cardiologist provides recent testing information showing that the driver
had an ETT that showed he was able to reach 12 METS during the test. His
echocardiogram showed an ejection fraction of 65%. The examination of the
driver is unremarkable. The examiner shouldANSWER a. Temporarily disqualify the
driver. b. Qualify the driver for 1 year. c. Qualify the driver for 2 years. d. Consult
with the cardiologist to determine if the driver suffers from anginaANSWER Correct answer
is "A". The driver has not completed the required 2-monthwaiting period, but all other
requirements for medical
clearance and required testing have been met. The driver would be certified for 1 year at the
completion of the
,DOT question bank QUESTIONS AND WELL DETAILED ANSWERS 2026/2027
waiting period. The date of the certification would be from the date of the original examination.
4. A driver provides an audiometric test documenting the followingANSWER 1. 500
HzANSWER 35 Right ear; 40 Left ear 2. 1000 HZANSWER 40 Right ear; 45 Leftear 3. 2000
HZANSWER
40 Right ear; 45 Leftear 4. 4000 HzANSWER 50 Right ear; 50 Left ear The medical
examinershouldANSWER a. Disqualify the driver because he does not meet minimum
hearing requirementsto drive. b. Certify the driver for 2years. c. Certify the
driver for 1 year. d. Require the driver to obtain a hearing exemptionANSWER Correct
answer is "B". The examiner would average the results from 500 Hz, 1000 Hz and 2000 Hz. This
average is 38.33 in
the Right and 43.33 in the Left ear. A driver must have an average hearing loss of less than or
equal to 40 in the better
ear. This does not have to be met in both ears.
DOT question bank
Study online at httpsquizlet.com/_cw3e2p
5. During the examination of a commercial driver, the examiner notices that
the driver's peripheral vision is 70 degrees to the left and 80 degrees to the
right. The examiner shouldANSWER a. Qualify the driver for 2years. b. Require the
driver to obtain a vision exemption because of the limitation in the driver's
left peripheral field. c. Disqualify the driver. d. Have the driver consult with
an Ophthalmologist to determine if the driver's peripheral vision meets min
imum standards.ANSWER Correct answer is "A". A driver must exhibit a minimum peripheral
vision of 70 degrees
bilaterally.
6. During examination, the medical examiner notices that the driver is distant,
lacks eye contact and shows absolutely no emotional response during the
,DOT question bank QUESTIONS AND WELL DETAILED ANSWERS 2026/2027
exam. The examiner's best response should beANSWER a. Provide the driver with a
"CAGE" questionnaire to determine if he suffers from alcoholism. b. Disqualify
the driver and refer him to a mental health professional prior to consideration
for certification. c. Certify the driver with a 1-time, 3-month certificate to
determine if there is any effect on the driver's ability to drive a CMV. d. Require
a skill performance evaluation to ascertain if the driver has any limitations
with driving.ANSWER Correct answer is "B". The driver exhibits what may be considered a "flat
affect" which is seen in
schizophrenia and in severe depression. The driver should be evaluated by a mental health
expert to make a diagnosis
prior to certification.
7. A driver admits to the use of marijuana for the treatment of his glaucoma,
which is legal in the State in which he lives. He provides medical documenta
tion for the glaucoma indicating he is able todrive a truck. He began using
the marijuana about three months ago. His current medical card has no
limitations listed and is for 2 years. His certification examination is within
normal limits. The medical examinershouldANSWERANSWER Disqualify the driver. b. Perform a
urine drug
collection and provide the release from the testing provider. c. Certify the driver for 1 year. d.
Certify the driver for 2
years. Correct answer is "A". Use of marijuana is prohibited by Federal law while driving a CMV
and trumps State law
in this matter.
8. A driver has a blood pressure of 136/92 mm Hg. This isANSWER a. Within normal
limits and would not affect the driver's certification. b. Stage 1Hypertension.
c. Stage 2Hypertension. d. Stage 3Hypertension.ANSWER Correct answer is "B". This is Stage 1
Hypertension, which is defined as 140-159/90 - 99.
, DOT question bank QUESTIONS AND WELL DETAILED ANSWERS 2026/2027
DOT question bank
Study online at htt//quizlet.com/_cw3e2p
9. A driver is taking Celexa for the treatment of what he calls a "mild depres
sion." He reports he has not considered or attempted suicide. The examiner
should? a. Temporarily disqualify the driver until he obtains written clearance
for the depression and the medication from the treating provider. b. Certify
the driver for a period of 1 year. c. Certify the driver for a period of 2 years.
d. Disqualify the driver until he is no longer requiring medication for the
treatmentof depression.ANSWER Correct answer is "A". Medical clearance is required for all
mental health
disorders. Celexa is an SSRI or 2nd Generation anti-depressant and is acceptable.
10. A driver reports that he had a hunting accident wherein he suffered a left
orbital fracture. He presents a note at the time of the examination from an
ophthalmologist stating "may drive". His exam is unremarkable except for
a limitation in peripheral vision in his left eye, which was inconclusive. His
distance vision was 20/20 right and 20/40 left. The medical examinershould? a.
Council the driver on the need for a vision exemption. b. Disqualify the driver
pending vision exam to determine ifit meets peripheral vision requirements.
c. Certify the driver for 1 year. d. Certify the driver for 2 years.ANSWER Correct answer is "B".
The driver must have a peripheral vision of 70 degrees bilaterally to certify to drive a CMV.
11. What minimum PaO2 level on an ABG performed for a chronic respiratory
disorder is necessary to certify a commercial driver? a. 55 mm Hg. b. 60 mm
Hg. c. 65 mm Hg. d. 70 mm HgANSWER Correct answer is "C". Blood oxygen saturation must be
a minimum
of 65 mm Hg for the driver to certify.
12. A driver is taking Topamax for the treatment of migraine headaches. He
