CA DMV Permit Test—The 100 Hardest Questions

CA DMV Permit Test—The 100 Hardest Questions (2026 Update). Most first-time applicants fail the California knowledge exam because of numbers—exact feet, seconds, miles-per-hour, fines, and dates that sound alike but aren’t.

I reviewed the 2026 California Driver Handbook, recent DMV sample tests, and public pass-rate data to compile a list of the 100 questions people miss most often. Learn these and you’ll cruise through the real 36- or 46-question test.

Study in 25-minute bursts. Spaced repetition locks in the numbers. Take at least two full-length online simulators under a timer the night before.

CA DMV Permit Test—The 100 Hardest Questions

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CA DMV Permit Test—The 100 Hardest Questions

CA DMV Permit Test
Total Questions: 100
Difficulty Level: Hardest 
Passing Marks: 83%

1 / 100

1) You must stop – ft from the nearest rail when a train is coming.

2 / 100

2) Never pass another vehicle within ___ ft of a railroad crossing.

3 / 100

3) Signal at least ___ ft before turning on city streets.

4 / 100

4) A white diamond painted in a lane marks:

5 / 100

5) Provisional licensees may carry passengers under 20 only if:

6 / 100

6) You must stop for a school bus with flashing red lights unless you are on:

7 / 100

7) Parallel parking wheels must be within ___ inches of the curb.

8 / 100

8) At 55 mph your car needs about ___ ft to stop safely.

9 / 100

9) If you drift off pavement, you should NOT:

10 / 100

10) Two sets of solid double yellow lines 2 ft apart represent:

11 / 100

11) It is illegal to park within ___ ft of a railroad track.

12 / 100

12) Littering on a highway is punishable by a fine up to:

13 / 100

13) Minimum safe following distance in ideal conditions:

14 / 100

14) Maximum speed on most California freeways when posted:

15 / 100

15) “RXR” painted on the pavement means:

16 / 100

16) Orange triangle with red border on rear of vehicle means:

17 / 100

17) On a two-lane road with faster traffic behind you, you should:

18 / 100

18) Legal BAC limit for drivers 21 + in California:

19 / 100

19) Inside a roundabout you must travel:

20 / 100

20) Open alcoholic containers may be carried:

21 / 100

21) When hydroplaning you should:

22 / 100

22) Green curb:

23 / 100

23) On a steep, narrow road with only one passable lane, the vehicle facing ___ must yield by backing up.

24 / 100

24) When children are outside within 500–1,000 ft of a school, the speed limit is usually:

25 / 100

25) Before driving, adjust mirrors to:

26 / 100

26) Zero-tolerance BAC for drivers under 21 is:

27 / 100

27) When turning left from a one-way street onto a two-way street, start from:

28 / 100

28) Large truck blind spots are called:

29 / 100

29) Passing a cyclist requires either a 3-ft gap or:

30 / 100

30) Uphill parking with no curb—turn wheels:

31 / 100

31) During first 12 months, a provisional licensee may not drive between:

32 / 100

32) A first conviction for crawling over or through a railroad gate can cost:

33 / 100

33) Minimum legal tire-tread depth for passenger cars:

34 / 100

34) Use a ___-second gap to merge safely on the freeway.

35 / 100

35) You may cross double yellow lines to enter/exit a driveway:

36 / 100

36) When entering a freeway, you should match traffic speed:

37 / 100

37) Blue curb means parking for:

38 / 100

38) Driving too slowly and blocking normal traffic can result in:

39 / 100

39) You must dim high-beams for oncoming traffic within:

40 / 100

40) You must stop within ___ ft of a crosswalk if directed by a flagger in a work zone.

41 / 100

41) Blind intersection speed limit:

42 / 100

42) After one train passes a two-track crossing, you may proceed:

43 / 100

43) Approaching a railroad crossing within 100 ft when you can’t see 400 ft in both directions—you may drive no faster than:

44 / 100

44) Right turn on red from a dedicated right-turn lane requires you to:

45 / 100

45) Vehicles towing trailers on any two-lane undivided highway may not exceed:

46 / 100

46) Speed limit in any alley:

47 / 100

47) U-turns in residential districts are legal when you can see ___ ft in both directions.

48 / 100

48) BAC limit for commercial (CDL) drivers:

49 / 100

49) You may drive in a bicycle lane no more than ___ ft before a right turn.

50 / 100

50) Broken yellow next to solid yellow means:

51 / 100

51) Dim high-beams when you’re following another vehicle within:

52 / 100

52) Yellow crosswalk lines appear mostly:

53 / 100

53) Report any collision with injury or over $1,000 damage to DMV within:

54 / 100

54) Give bicyclists at least ___ ft of clearance when passing.

55 / 100

55) In fog or heavy rain, use:

56 / 100

56) Never park closer than ___ ft to a fire hydrant.

57 / 100

57) Replace tires when tread is worn to ___ in or less.

58 / 100

58) Stay at least ___ ft behind an emergency vehicle with lights and siren.

59 / 100

59) Dumping animals on a highway is punishable by:

60 / 100

60) If your accelerator sticks, first:

61 / 100

61) When you leave a parked car you should:

62 / 100

62) A negligent-operator hearing is triggered at ___ points in 12 months.

63 / 100

63) White curb indicates:

64 / 100

64) On freeway, signal ___ seconds before changing lanes.

65 / 100

65) A five-sided (pentagon) sign warns of a:

66 / 100

66) The maximum speed on a two-lane undivided highway is:

67 / 100

67) Yellow curb:

68 / 100

68) Refusing a chemical BAC test results in license suspension of at least:

69 / 100

69) Slow vehicles holding ___ or more cars must pull over when safe.

70 / 100

70) Two cars reach an uncontrolled intersection at the same moment. Who goes first?

71 / 100

71) Children under 8 yrs or under 4 ft 9 in must ride in:

72 / 100

72) Minors may use a cell phone while driving:

73 / 100

73) It is illegal to park in front of a sidewalk ramp for the disabled within:

74 / 100

74) You must dim interior lights to reduce glare when driving at night because:

75 / 100

75) At an uncontrolled T-intersection, the driver on the ___ road must yield.

76 / 100

76) When parking downhill with a curb, turn wheels:

77 / 100

77) Drivers under 18 may use a mobile phone:

78 / 100

78) When emergency vehicle approaches with siren, you must:

79 / 100

79) During a skid, steer:

80 / 100

80) Broken white lines separate lanes:

81 / 100

81) You may drive in a center left-turn lane for no more than ___ ft.

82 / 100

82) Smoking in a vehicle with anyone under 18 is:

83 / 100

83) Crashes with injury or death must be reported to police/CHP within:

84 / 100

84) Passing a streetcar, trolley, or bus at a safety zone—the limit is:

85 / 100

85) You must stop for a bus with flashing red lights:

86 / 100

86) Red curb means:

87 / 100

87) A flashing yellow arrow for a left turn means:

88 / 100

88) Basic Speed Law says you must:

89 / 100

89) Motorcyclists are entitled to:

90 / 100

90) Evading police causing serious injury can result in prison term up to:

91 / 100

91) Headlights must be on from:

92 / 100

92) An orange diamond sign indicates:

93 / 100

93) When a pedestrian starts to cross on a flashing “Don’t Walk,” you should:

94 / 100

94) As of 2025, the minimum liability insurance is:

95 / 100

95) Before entering a roundabout you must:

96 / 100

96) Parking on a bridge is allowed:

97 / 100

97) Avoid carbon-monoxide poisoning by:

98 / 100

98) Default business/residential speed (unless posted):

99 / 100

99) Blue curb without a placard can cost up to:

100 / 100

100) If brakes fail, one action is to:

Your score is

California DMV Practice Tests & Hard Sets
CA DMV Test 1 CA DMV Test 2 CA DMV Test 3 CA DMV Hard 1
CA DMV Test 4 CA DMV Test 5 CA DMV Test 6 CA DMV Hard 2
CA DMV Test 7 CA DMV Test 8 CA DMV Test 9 CA DMV Hard 3
CA DMV Test 10 CA DMV Test 11 CA Road‑Sign Test CA DMV Hard 4

Here’s how to prepare smartly:
🔹 Review the California Driver Handbook carefully, especially speed limits, distances, and right-of-way charts.
🔹 Take multiple online practice tests that cover these tricky topics repeatedly.
🔹 Don’t just guess—memorize the numbers! There’s no shortcut to knowing the difference between, say, 15 feet from a fire hydrant and 100 feet from a railroad crossing.