Technician A says that the primary seal of the secondary piston is leaking if fluid is seen leaking from the rear of the master cylinder. Technician B says that air in the brake lines will cause a low brake pedal. Which technician is correct?
A) Technician A only B) Technician B only
C) Both technicians A and B D) Neither technician A nor B
B
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Describe ICF forms and how they are used.
What will be an ideal response?
Copper tubing that comes in rigid, straight lengths is called:
A) Tempered copper. B) Hard copper. C) Soft copper. D) ACR copper.
A 25 lb. is set 5' from the fulcrum. How far would a 10 lb. weight need to be set from the fulcrum to create a balance?
A. 12.5' B. 13.5' C. 14' D. 22'
Compressed gas tanks often have gage pressures of at least 1 MPa. Suppose you wished to use a manometer to measure the gage pressure of a compressed air tank whose pressure was at least 1 MPa. The manometer would be set up between the tank and the atmosphere. What is the minimum length of tube needed for such a measurement if the liquid in the manometer is (a) mercury (? = 13,500 kg/m3), (b) water (? = 1,000 kg/m3), and (c) engine oil (? = 880 kg/m3)? Do these seem to be practical devices for such a measurement?
Given: Pg = 1 MPa = 1,000,000 Pa Assume: g = 9.81 m/s2 What will be an ideal response?