Engineering - Mechanical Engineering

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1.

A beam is loaded as cantilever. If the load at the end is increased, the failure will occur                        
A. in the middle B. at the tip below the load
C. at the support D. anywhere



2.

A boiler shell 200 cm diameter and plate thickness 1.5 cm is subjected to internal pressure of 1.5 MN/m , then the hoop stress will be                        
A. 30 MN/m2 B. 50 MN/m2
C. 100 MN/m2 D. 200 MN/m2



3.

A key is subjected to side pressure as well at shearing forces. These pressures are called                        
A. bearing stresses B. fatigue stresses
C. crushing stresses D. resultant stresses




4.

A material capable of absorbing large amount of energy before fracture is known as                        
A. ductility B. toughness
C. resilience D. shock proof



5.

A non-yielding support implies that the                        
A. support is frictionless B. support can take any amount of reaction
C. support holds member firmly D. slope of the beam at the support is zero



6.

A riveted joint in which every rivet of a row is opposite to other rivet of the outer row, is known as                        
A. chain riveted joint B. diamond riveted joint
C. cross-cross riveted joint D. zig-zag riveted joint



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