Red Seal Practice Exam Questions Flashcards
During a PM inspection a broken radiator fan shroud is found. Which of the following could cause this damage?
A)loose fan belts
B) a failed hub clutch
C) a broken engine mount
D) an out of balance fan assembly
C) a broken engine mount will allow the engine to lift during operation, allowing the rotating fan to come in contact with the fan shroud
During a PM inspection the steering wheel binds when turned. What could cause this condition?
A)excessive sector gear to ball nut clearance
B) worn king pin
C) worn steering shaft universal joints
D) worn tie rod ends
C) worn steering universal joints can produce binding as they operate through there different angles. All other worn components listed will allow steering looseness and vechical wander
Although any loose or missing bolts should be tightened or replaced when noticed, what percentage of fifth wheel mounting bracket to frame fasteners can be loose or missing before the tractor must be placed out of service
A) 10%
B) 20%
C)30%
D)40%
B) out of service regulations allow for up to 20% of fifth wheel mounting bracket bolts to be missing or ineffective before the tractor must be removed from service
What type of tubing must be used in hydraulic brake system?
A) single wall thickness steel tubing
B) double wall thickness steel tubing
C) single wall thickness copper tubing
D) double wall thickness copper tubing
B) hydraulic brake line tubing is double wall thickness steel tubing in order to handle the pressures developed within a hydraulic brake system
Which of the following tools can be used to cut new external threads A) a die B) a tap C) a thread pitch gauge D) a thread chaser
A) a die; a die is shaped to cut new threads in the outside of a steel or aluminum rod, can also be used to try and repair threads
When cutting with an oxy-acetylene torch, what should you see in the steel before depressing the cutting lever A) a small liquid puddle B) a change in steel colour to black C) a change I steel colour to red D) a change in flame colour to red
A) a small liquid puddle; before depressing a oxygen lever on a cutting torch, a small puddle of molten steel should appear at the point being heated
What tool should be used to measured the air filter restriction?
A) a water manometer
B) a murmurs manometer
C) a vacuum gauge
D) a pressure gauge
A) a water manometer is the correct tool to accurately measure the pressure difference between the ambient air pressure and the pressure of the air flow in the air intake ducting
