250 South Dakota Commercial Driver's License (CDL) Practice Test Questions

Obtaining a Commercial Driver's License (CDL) in South Dakota requires passing a comprehensive written test. To help you prepare for this crucial exam, we present a comprehensive collection of 250 practice questions designed to cover all key aspects of the test. By diligently working through these questions, you'll build confidence and increase your chances of passing the exam on your first attempt.

• Q1: What is the legal blood alcohol concentration (BAC) limit for CDL drivers?

  • (A) 0.02%
  • (B) 0.04%
  • (C) 0.08%
  • (D) 0.10%
  • Correct Answer: C

• Q2: Which of the following is required on a CDL?

  

  250 South Dakota CDL Practice Test Questions

  by Warren Ruppel

  5 out of 5

  Language	:	English
  File size	:	1176 KB
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  • (A) Endorsement
  • (B) Expiration date
  • (C) Photograph
  • (D) All of the above
  • Correct Answer: D

• Q3: What is the required stopping distance for a tractor-trailer traveling at 55 mph?

  • (A) 200 feet
  • (B) 300 feet
  • (C) 400 feet
  • (D) 500 feet
  • Correct Answer: B

• Q4: What component stores compressed air for the air brake system?

  • (A) Air compressor
  • (B) Air reservoir
  • (C) Air filter
  • (D) Air brake actuator
  • Correct Answer: B

• Q5: What is the purpose of the governor in an air brake system?

  • (A) To control the speed of the compressor
  • (B) To prevent overheating of the compressor
  • (C) To maintain the air pressure in the system
  • (D) To actuate the brakes
  • Correct Answer: A

• Q6: What is the legal maximum length for a combination vehicle in South Dakota?

  • (A) 60 feet
  • (B) 80 feet
  • (C) 100 feet
  • (D) 120 feet
  • Correct Answer: B

• Q7: When backing up a combination vehicle, where should you look?

  • (A) Through the trailer's mirrors
  • (B) Through the cab's windows
  • (C) Out the driver's side window
  • (D) Out the passenger's side window
  • Correct Answer: A

• Q8: What class of hazardous materials is explosive?

  • (A) Class 1
  • (B) Class 2
  • (C) Class 3
  • (D) Class 4
  • Correct Answer: A

• Q9: What is the purpose of a placard on a vehicle carrying hazardous materials?

  • (A) To identify the type of hazardous materials
  • (B) To indicate the quantity of hazardous materials
  • (C) To provide emergency responders with instructions
  • (D) All of the above
  • Correct Answer: D

• Q10: What is the maximum number of passengers allowed on a school bus in South Dakota?

  • (A) 20
  • (B) 30
  • (C) 40
  • (D) 50
  • Correct Answer: C

• Q11: When loading passengers on a bus, where should the driver position the bus?

  • (A) As close to the curb as possible
  • (B) At least 10 feet from the curb
  • (C) On the opposite side of the street
  • (D) In the middle of the road
  • Correct Answer: A

• Q12: What is the legal speed limit for a school bus in a school zone in South Dakota?

  • (A) 15 mph
  • (B) 20 mph
  • (C) 25 mph
  • (D) 30 mph
  • Correct Answer: A

• Q13: What does the yellow flashing light on a school bus indicate?

  • (A) The bus is preparing to stop
  • (B) The bus is stopped and passengers are loading or unloading
  • (C) The bus is about to make a turn
  • (D) The bus is experiencing mechanical problems
  • Correct Answer: B

• Q14: What is the maximum capacity of a tank vehicle that does not require an endorsement?

  • (A) 1,000 gallons
  • (B) 2,000 gallons
  • (C) 3,000 gallons
  • (D) 4,000 gallons
  • Correct Answer: B

• Q15: What is the purpose of a deflector shield on a tank vehicle?

  • (A) To prevent spills
  • (B) To deflect debris
  • (C) To protect the driver from fumes
  • (D) To provide additional stability
  • Correct Answer: B

• South Dakota Department of Public Safety CDL Handbook
• Federal Motor Carrier Safety Administration CDL Test Prep
• Commercial Driver's License (CDL) Practice Tests

By thoroughly reviewing these 250 practice questions, you will gain a comprehensive understanding of the key concepts tested on the South Dakota CDL written exam. Take advantage of this valuable resource to build confidence, identify areas needing improvement, and ultimately increase your likelihood of success on exam day. Remember to supplement your preparation with official study materials and seek guidance from experienced drivers or instructors as needed. Drive safely!

250 South Dakota CDL Practice Test Questions

by Warren Ruppel

5 out of 5

Language	:	English
File size	:	1176 KB
Text-to-Speech	:	Enabled
Screen Reader	:	Supported
Enhanced typesetting	:	Enabled
Word Wise	:	Enabled
Print length	:	130 pages
Lending	:	Enabled

FREE