The outer walls of the firebox are most often ____.
A. common brick
B. natural stone
C. concrete
D. wood
Answer: A
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The national railroad strike of 1877 started when
A. President Hayes refused to use troops to keep the trains running. B. the four largest railroads cut salaries by 10 percent. C. working hours were cut back by the railroad companies. D. the railroad workers refused to cross the picket lines of cargo loaders. E. the railroads tried to hire Chinese workers.
Technician A says that a vehicle can fail a parking brake performance test if the linings are contaminated. Technician B says that worn-out base brakes will NOT affect parking brake performance. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B
Relative difficulty of machining with regard to tool life, surface finish and power consumption is called:
A) Machinability B) Surface finish rating C) Hardenability D) Metal removal index rating
Which of the following best describes how differential action takes place during cornering?
A. outside wheel rotates faster than the inside wheel B. outside wheel rotates slower than the inside wheel C. inside wheel is accelerated to the speed of the outside wheel D. outside wheel is braked to the speed of the inside wheel