Chapter 99 Hydraulic Valves and Switches
Quiz by Matt Lobdell
Feel free to use or edit a copy
includes Teacher and Student dashboards
Measure skillsfrom any curriculum
Tag the questions with any skills you have. Your dashboard will track each student's mastery of each skill.
- edit the questions
- save a copy for later
- start a class game
- automatically assign follow-up activities based on students’ scores
- assign as homework
- share a link with colleagues
- print as a bubble sheet
- Q1
Technician A says a pull to the right during braking could be caused by a defective metering valve.
Technician B says a pull to the left could be caused by a defective proportioning valve. Which technician is correct?
Technician A only
Technician B only
Both technicians
Neither technician
30s - Q2
The rear brakes lock up during hard braking. Technician A says the metering valve could be the cause. Technician B says that a defective proportioning valve could be the cause. Which technician is correct?
Technician A only
Technician B only
Both technicians
Neither technician
30s - Q3
Technician A says the metering valve controls the flow of brake fluid to the front brakes. Technician B says that the proportioning valve is used to control the brake fluid pressure to the rear brakes. Which technician is correct?
Technician A only
Technician B only
Both technicians
Neither technician
30s - Q4
A combination valve could include________.
proportioning, metering, and pressure-differential valves
proportioning and pressure-differential valves
metering and proportioning valves
Any of the above depending on the make and model of the vehicle
30s - Q5
Which one of these sends an electrical signal to the antilock brake control module?
Pressure-differential switch
Residual check valve
Brake pedal position sensor
All of the above
30s - Q6
Technician A says that the red brake warning light can be turned on if a difference in pressure is detected by the pressure differential switch. Technician B says that the red brake warning light can be turned on if the brake fluid level sensor detected low brake fluid level. Which technician is correct?
Technician A only
Technician B only
Both technicians
Neither technician
30s - Q7
Which type of vehicles most often do not use metering valves?
Front-wheel drive
Rear-wheel drive
Four-wheel drive
All-wheel drive
30s - Q8
Technician A says that some proportioning valves have one control valve that controls both rear brakes. Technician B says that some proportioning valves have two control valves, one for each rear wheel brake. Which technician is correct?
Technician A only
Technician B only
Both technicians
Neither technician
30s - Q9
The button on the ________ valve should beheld when pressure bleeding the brakes.
pressure-differential
metering
proportioning
residual check
30s - Q10
A typical brake pedal position sensor/switch is electrically ________.
electrically normally open
electrically normally closed
checked using a special tester
checked using an ammeter
30s - Q11
Two technicians are discussing the metering valve in a front-disc, rear-drum braking system. Technician A says that the metering valve delays application of the front brakes. Technician B says that the metering valve delays the application of the rear brakes. Which technician is correct?
Technician A only
Technician B only
Both technicians
Neither technician
30s - Q12
When the brakes are applied in a panic situation, the rear brakes have a tendency to skid. The most likely cause is ________.
quick take-up valve in the master cylinder
compensation port clogged in the master cylinder
metering valve is faulty
proportioning valve is faulty
30s - Q13
A vehicle tends to lock up the front wheels when being driven on slippery road surfaces. Technician A says that the metering valve may be defective. Technician B says that the proportioning valve may be defective. Which technician is correct?
Technician A only
Technician B only
Both technicians
Neither technician
30s - Q14
The residual check valve maintains between20 and 60 psi in the brake lines.
falsetrueTrue or False30s - Q15
The metering valve delays front brake action.
truefalseTrue or False30s