Mechanical Engineering MCQs

A. Drooping characteristic
B. Lihear characterisstic
C. Rising characteristic
D. Flat characteristic

A. Longitudinally
B. Circumferentially
C. On dished end
D. Anywhere

A. Prevent flat surfaces under pressure from tearing apart
B. Take care of failure in shear
C. Take care of failure in compression
D. Provide support for boiler

A. Mean diameter and thickness
B. Inside diameter and thickness
C. Outside diameter and thickness
D. Outside diameter and inside diameter

A. vertical fire tube type
B. horizontal fire tube type
C. horizontal water tube type
D. vertical water tube type

A. Can be raised rapidly
B. Is raisd at slower rate
C. Is raised at same rate
D. Could be raised at fast/slow rate depending on design

A. Pulverised fuel fired boiler
B. Cochran boiler
C. Lancashire boiler
D. Babcock and wilcox boiler

A. Heating takes place at bottom and the water supplied at bottom gets converted into the mixture of stdam bubbles and hot water which rise to durm
B. Water is supplied in drum and through downcomers” located in atmospheric conditon it passes to the water wall and rises to durm in the from of mixture of water and steam
C. Feed pump is employed to supplement natural circulation in water wall type furnace
E. Water is converted into steam in one pass without any recirculation

A. Bismuth
B. Copper
C. Aluminium
D. Nickel

A. Heating takes place at bottom and the water supplied at bottom gets converted into the mixture of steam bubbles and hot water which rise to drum
B. Water is supplied in drum and through down-comers located in atmospheric condition it passes to the water wall and rises to drum in the form of mixture of water and steam
C. Feed pump is employed to supplement natural circulation in water wall type furnace
D. Water is converted into steam in one pass without any recirculation