CA DMV Permit Test—The 100 Hardest Questions

CA DMV Permit Test—The 100 Hardest Questions (2025 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 2025 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) Inside a roundabout you must travel:

2 / 100

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

3 / 100

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

4 / 100

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

5 / 100

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

6 / 100

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

7 / 100

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

8 / 100

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

9 / 100

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

10 / 100

10) Green curb:

11 / 100

11) In fog or heavy rain, use:

12 / 100

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

13 / 100

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

14 / 100

14) Minors may use a cell phone while driving:

15 / 100

15) When hydroplaning you should:

16 / 100

16) Speed limit in any alley:

17 / 100

17) Minimum safe following distance in ideal conditions:

18 / 100

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

19 / 100

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

20 / 100

20) Before entering a roundabout you must:

21 / 100

21) Headlights must be on from:

22 / 100

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

23 / 100

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

24 / 100

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

25 / 100

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

26 / 100

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

27 / 100

27) Blind intersection speed limit:

28 / 100

28) If brakes fail, one action is to:

29 / 100

29) Dumping animals on a highway is punishable by:

30 / 100

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

31 / 100

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

32 / 100

32) White curb indicates:

33 / 100

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

34 / 100

34) If your accelerator sticks, first:

35 / 100

35) Red curb means:

36 / 100

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

37 / 100

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

38 / 100

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

39 / 100

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

40 / 100

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

41 / 100

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

42 / 100

42) During a skid, steer:

43 / 100

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

44 / 100

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

45 / 100

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

46 / 100

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

47 / 100

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

48 / 100

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

49 / 100

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

50 / 100

50) Open alcoholic containers may be carried:

51 / 100

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

52 / 100

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

53 / 100

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

54 / 100

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

55 / 100

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

56 / 100

56) Uphill parking with no curb—turn wheels:

57 / 100

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

58 / 100

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

59 / 100

59) Large truck blind spots are called:

60 / 100

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

61 / 100

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

62 / 100

62) Yellow crosswalk lines appear mostly:

63 / 100

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

64 / 100

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

65 / 100

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

66 / 100

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

67 / 100

67) Parking on a bridge is allowed:

68 / 100

68) Blue curb means parking for:

69 / 100

69) A white diamond painted in a lane marks:

70 / 100

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

71 / 100

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

72 / 100

72) An orange diamond sign indicates:

73 / 100

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

74 / 100

74) Before driving, adjust mirrors to:

75 / 100

75) Avoid carbon-monoxide poisoning by:

76 / 100

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

77 / 100

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

78 / 100

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

79 / 100

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

80 / 100

80) Broken white lines separate lanes:

81 / 100

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

82 / 100

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

83 / 100

83) Drivers under 18 may use a mobile phone:

84 / 100

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

85 / 100

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

86 / 100

86) “RXR” painted on the pavement means:

87 / 100

87) Basic Speed Law says you must:

88 / 100

88) Motorcyclists are entitled to:

89 / 100

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

90 / 100

90) Broken yellow next to solid yellow means:

91 / 100

91) BAC limit for commercial (CDL) drivers:

92 / 100

92) When you leave a parked car you should:

93 / 100

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

94 / 100

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

95 / 100

95) Yellow curb:

96 / 100

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

97 / 100

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

98 / 100

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

99 / 100

99) Maximum speed on most California freeways when posted:

100 / 100

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

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.