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Engineering :: Machine Design

341.  Braking system on earth moving machinery is
A. Vacuum braking B. Hydraulic braking
C. Pneumatic braking D. Mechanical braking
E. Regenerative braking    
342.  Braking system used on aircraft is
A. Mechanical B. Plugging
C. Regenerative D. Hydraulic
E. Pneumatic    
343.  Taper roller bearings are used in automobiles for
A. Wheels B. Gear box
C. Engine crankshaft D. Small end of connecting rod
E. Differential    
344.  Bearings provided on passenger coaches in railway are
A. Bush bearings B. Cast iron bearings
C. Ball bearings D. Roller bearings
E. Any of the above    
345.  Which cam profile is preferred for minimum jerks?
A. Flat B. Involute
C. Cycloidal D. Simple harmonic
E. Any of the above    
346.  An eye bolt is generally provided on
A. Furnaces B. Bench vices
C. Electric motors D. Overhead cranes
E. All of the above    
347.  A ball bearing cannot be provided for
A. Low speed shafts B. Variable speed shafts
C. Variable load shafts D. Automobile gear shafts
E. Big ends of connecting rods for I.C. engines    
348.  In case the diameter of a shaft is doubled, its torque transmitting capacity will increase by
A. 2 times B. 8 times
C. 4 times D. 16 times
349.  Which type of coupling will be preferred for connecting two shafts having relative speed?
A. Flange coupling B. Flexible flange coupling
C. Muff coupling D. Fluid coupling
E. Any of the above    
350.  Which of the following is a positive drive?
A. Rope drive B. Flat belt drive
C. Gear drive D. V-belt drive
E. None of the above    

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