Parking emergency brakes of trucks and buses can be legally held on by _____ pressure.

a. Spring
b. Fluid
c. Air.


a. Spring

Trades & Technology

You might also like to view...

Three pieces of steel weigh 14.19 pounds, 21.085 pounds, and 1.4 pounds. What is the total weight if there are five orders for these three pieces? Round the answer to two decimal places.

What will be an ideal response?

Trades & Technology

Metric micrometers are being discussed. Technician A says the hub is graduated in millimeters and half millimeters. Technician B says each revolution of the thimble equals one millimeter on the hub. Which technician is right?

A. Technician A B. Technician B C. Both technicians D. Neither technician

Trades & Technology

A Natural Attenuation landfill is safe for the disposal of what kinds of MSW?

What will be an ideal response?

Trades & Technology

The first companion animal to be domesticated was the

A. Cat B. Guinea pig C. Rabbit D. Ferret E. Dog

Trades & Technology