Technician A says engine cooling fans are only necessary when the vehicle is moving slowly or stopped. Technician B says modern aerodynamic shapes have increased the need for operating the cooling fan. Who is correct?

A. Technician A
B. Technician B
C. Both A and B
D. Neither A nor B


Answer: B

Trades & Technology

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Which of the following statements about work for a quasi-equilibrium process is wrong?

A) Work is the area under the curve on the T-V diagram B) The differential of work is inexact C) Work is energy crossing a boundary D) Work is a path function

Trades & Technology

Find the inverse of each ratio.

Fill in the blank(s) with the appropriate word(s).

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The purpose of the HOQ’s Roof (Correlation Matrix) is to graphically show which product technical requirements support, and which impede, the others.