Your car has functioning four-wheel ABS. During an emergency stop, the brake pedal pulses. What should you do?
Correct answer: Keep firm pressure on the brake pedal while steering as needed.
Pulsing can be normal ABS operation. Keep pressing the service brake; repeatedly releasing it interrupts the system’s ability to help you stop.
Source: Iowa Driver's Manual, MM1170 07/23/2026; printed page 41, physical PDF page 41; ABS — antilock braking system. Readable text only; no diagram interpretation used. ↗
Heavy rain begins and water collects on the road. What is a safer adjustment?
Correct answer: Reduce speed, increase space, and avoid abrupt inputs.
Water reduces tire grip and can cause hydroplaning. Lower speed, more room and smooth control reduce the risk of losing traction.
Source: Iowa Driver's Manual, MM1170 07/23/2026; printed page 60, physical PDF page 60; Wet or slippery roads. Readable text only; no diagram interpretation used. ↗
Dense fog reduces your view. Which headlight setting is appropriate?
Correct answer: Low beams, with speed reduced to fit visibility.
High beams reflect back from fog and can worsen glare. Use low beams, slow down, and leave additional room.
Source: Iowa Driver's Manual, MM1170 07/23/2026; printed page 60, physical PDF page 60; Driving in fog. Readable text only; no diagram interpretation used. ↗
Water covers a road and you cannot tell how deep it is or whether the pavement is intact. What should you do?
Correct answer: Turn around and use another safe route.
Do not drive into floodwater. Depth, current and washed-out pavement may be impossible to judge from the driver’s seat.
Source: Iowa Driver's Manual, MM1170 07/23/2026; printed page 60, physical PDF page 60; Flooded roads. Readable text only; no diagram interpretation used. ↗
The surrounding pavement looks wet on a freezing morning. Why should you be especially cautious on the bridge ahead?
Correct answer: A bridge can freeze before the adjoining roadway.
Bridges lose heat readily and may ice before nearby pavement. Reduce speed and avoid sudden braking or steering.
Source: Iowa Driver's Manual, MM1170 07/23/2026; printed page 61, physical PDF page 61; Winter driving. Readable text only; no diagram interpretation used. ↗
Snow or heavy rain makes traction uncertain. What should you do with cruise control?
Correct answer: Leave it off and manage speed yourself for the conditions.
The manual advises against cruise control in bad weather. Direct, smooth speed control is important when traction changes.
Source: Iowa Driver's Manual, MM1170 07/23/2026; printed page 59, physical PDF page 59; Weather conditions. Readable text only; no diagram interpretation used. ↗
A snowplow ahead creates a cloud that hides the road and its equipment. What should you do?
Correct answer: Stay well back until you have clear visibility and a safe opportunity.
Snowplows have limited visibility and equipment wider than the visible vehicle. Do not drive into the snow cloud or attempt a shoulder pass.
Source: Iowa Driver's Manual, MM1170 07/23/2026; printed page 61, physical PDF page 61; Sharing the road with snowplows. Readable text only; no diagram interpretation used. ↗
You leave a paved road and enter loose gravel. What should you change?
Correct answer: Slow down and make steering, acceleration and braking smoother.
Loose gravel reduces traction and can make abrupt inputs destabilize the vehicle. Slow down and allow more control margin.
Source: Iowa Driver's Manual, MM1170 07/23/2026; printed page 55, physical PDF page 55; Rural roads — gravel. Readable text only; no diagram interpretation used. ↗
Tall crops block your view of a rural intersection. You see no dust from another vehicle. What should you do?
Correct answer: Slow and approach cautiously; no dust does not prove the road is clear.
Vegetation and terrain can hide crossing traffic. The absence of a dust cloud is not reliable evidence that nobody is approaching.
Source: Iowa Driver's Manual, MM1170 07/23/2026; printed page 55, physical PDF page 55; Rural roads — restricted views. Readable text only; no diagram interpretation used. ↗
A deer suddenly enters the road and you cannot avoid it by stopping in your lane. What should you avoid doing?
Correct answer: Swerving sharply into oncoming traffic or off the road.
A sudden swerve can cause a more severe crash than the animal impact. Keep control, slow as safely as possible, and watch for additional animals.
Source: Iowa Driver's Manual, MM1170 07/23/2026; printed page 57, physical PDF page 57; Deer and other animals. Readable text only; no diagram interpretation used. ↗
A queue beyond a railroad crossing leaves no room for your entire car. The gates are up. What should you do?
Correct answer: Wait before the tracks until you can clear them completely.
Never enter a crossing unless there is room for the entire vehicle beyond it. A signal that allows crossing does not make the tracks a waiting area.
Source: Iowa Driver's Manual, MM1170 07/23/2026; printed page 12, physical PDF page 12; Railroad crossings. Readable text only; no diagram interpretation used. ↗
Your car becomes disabled on the tracks, even though no train is visible. What is the first priority?
Correct answer: Get everyone out and well away from the tracks, then call the posted railroad emergency number or 911.
Move people away from the crossing immediately. The blue emergency notification sign provides a railroad phone number and crossing identifier; use 911 if that information is unavailable.
Source: Iowa Driver's Manual, MM1170 07/23/2026; printed page 12, physical PDF page 12; Railroad crossing emergencies — ENS. Readable text only; no diagram interpretation used. ↗
