Assuming a Major Air Leak in Tractor-Trailer Combination That Will

question 19

Multiple Choice

Assuming a major air leak in tractor-trailer combination that will result in complete system air pressure loss,which of the following sequence of events will occur FIRST?

• A) trailer supply button pops out
• B) tractor protection valve trips to OFF
• C) spring brakes start to apply when hold-off air drops below 60 psi (4 bar)
• D) tractor inversion valve actuates

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Definitions:

Interest Compounded

The process whereby interest is added to the principal sum, so that from that moment on, the added interest also earns interest, leading to exponential growth.

Annuity Growth Rate

The rate at which the value of an annuity investment increases over time due to interest and investment income.

Present Value

The current estimation of a future financial sum or series of payments, when discounted at a specific rate of return.

Discount Rate

The interest rate charged to commercial banks and other depository institutions for loans received from the central bank's discount window; also used in discounted cash flow (DCF) analysis to present value future cash flows.