Exam (elaborations)
88M - Tractor Trailer and HEMTT Exam Questions and Answers
- Course
- Institution
88M - Tractor Trailer and HEMTT Exam Questions and Answers
[Show more]
Seller
Follow
millyphilip
Reviews received
Content preview
88M - Tractor Trailer and HEMTT ExamQuestions and Answers
During Operation the air pressure range for the M915 is what? - Answers -90-120 PSI
Once an M915 tractor and M872 trailer is couples, an operator should check the
connection by doing what? - Answers -Test brakes with Johnny Bar
During coupling procedures, when would an operator connect the air hoses and light
cables? - Answers -After backing under kingpin, before metallic click
During coupling procedures, an operator must wait a minimum of how many seconds to
ensure landing gear will support trailer weight? - Answers -5 seconds
What are 2 types of air pressure gauges? - Answers -Primary and secondary
What is the cruising range (in miles) on the M915 on a full tank? - Answers -400 miles
What action should the operator take if the voltmeter of the M915 is reading in the red
band? - Answers -Stop and call maintenance
What does the acronym CWS stand for? - Answers -Collision Warning system
On the M915 what is the purpose of the primary air pressure gauge? - Answers -Rear
truck brakes
What must and operator do prior to unlocking the inter-axle differential lock? - Answers -
Slow to 25mph or less
The M915 comes equipped with a ________volt utility outlet - Answers -12
On the M915, when would the low air pressure warning buzzer not sound when below
60psi? - Answers -When truck is set to blackout drive
On the M915, what must an operator take if the transmission oil temp goes into red
band? - Answers -Stop and investigate
What is the process for resetting the air cleaner restriction indicator gauge on M915? -
Answers -Service air cleaner, press yellow reset
, What must an operator do prior to locking the inter-axle differential lock? - Answers -
Come to complete stop
What is the purpose of the 5th wheel slide/switch? - Answers -allows changes to axle
loads or change total length
The M915 can maintain a speed of ___________ on level roads - Answers -65 mph
What is the maximum governed speed (in RPM)? - Answers -2100 RPMs
On the M915, what action should the operator take if the voltmeter is reading in the red
band? - Answers -Notify maintenance
What's the minimum temperature of the engines coolant for normal operation? -
Answers -190 degrees
How many braking functions does a M915 have? - Answers -3
On the M915, for heavy loads or hills, how many cylinders should you use to brake? -
Answers -4 or 6
Which of the following is NOT accomplished prior to coupling procedures - Answers -
back up until you hear click
Which of the following is the correct sequence for uncoupling the IV connectors on the
M915? - Answers -Closest to farthest
On the M915, how many bands are on the voltmeter? - Answers -4
What is the idle speed on the M915? - Answers -600 RPM
On the M915, what must an operator take if the transmission oil temp goes into yellow
band? - Answers -Stop and investigate
On the M915, low air pressure warning buzzer sounds when the air pressure in either
duel system falls below what? - Answers -65 PSI
On the M915, how many cylinders should you use when driving on level roads with light
loads? - Answers -2
On the M915, how many settings are on the engine brake selection switch? - Answers -
3
How far do you lower your landing gear with uncoupling a tractor trailer? - Answers -
Until there is space between the 5th wheel and the trailer
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through EFT, credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying this summary from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller millyphilip. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy this summary for R227,19. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
83662 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy summaries for 14 years now