Air Tank & Safety Valve

17. The tandem master has
A. two reservoirs and two outlets   
B. one reservoir and two outlets  
C. tow reservoir and one outlet  
D. one reservoir and one outlet

18. Which defects of brake drum cannot be corrected by turning?
A. taper   
B. over heating  
C. ovality   
D. scoring

19.The fluid pressure in a wheel cylinder can be increased by any one of the following methods
A. by changing dia of piston   
B. by changing dia of rubber cup  
C. by changing the spring   
D. by interchanging of brake shoes

20. Air tank is made of
A.steel  
B. copper   
C. plastic   
D. brass

21. Safety valve on air tank prevents
A. oil accumulation in air tank   
B. excess air reaching to brake valve  
C. bursting of air tank at high pressure   
D. vehicle to move when brake has failed

22.How many air tanks are used in dual air brake system
A. one   
B. two   
C. three   
D. four

23. The vehicle attains different speed by means of
A. gear box   
B. clutch   
C. differential   
D. rear axle & wheel

24. The clutch plate assembly has a centre steel disc riveted with springs for
A. strength   
B. flexibility   
C. less noise   
D. absorbing shocks

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