A. cast iron
B. high speed steel
C. all non-ferrous materials
D. all of the above
E. none of the above
Related Mcqs:
- The essential equipment for producing high vlotage for sparking in petrol engines with battery is_______________?
A. ignition coil
B. ignition coil and distributor
C. ignition coil and condenser
D. ignition coil and contact breaker
E. ignition coil, contact breaker and con-denser - Stress relaxation is- the phenomenon ___________________?
A. in which parts are not loaded
B. in which stress remains constant on in-creasing load
C. in which deformation tends to loosen the joint and produces a stress reduced
D. stress reduces on increasing load
E. none of the above - The unique property of cast iron is its high ___________________?
A. malleability
B. ductility
C. surface finish
D. damping characteristics
E. hardness - The composition of silver solder is ___________________?
A. silver, copper, zinc
B. silver, tin, nickel
C. silver, lead, zinc
D. silver, copper, aluminium
E. silver, lead, tin - Which is false statement about properties of aluminium ___________________?
A. modulus of elasticity is fairly low
B. wear resistance is very good
C. fatigue strength is not high
D. creep strength limits its use to fairly low temperatures
E. corrosion resistance is good - The reasons which are basically responsible for the formation of a queue should be that ___________________?
A. the average service rate Hess than the average arrival rate
B. output rate is linearly proportional to input
C. output rate is constant and the input varies in a random manner
D. all of the above
E. none of the above - Ratio of inertia force to surface Jension is known as ___________________?
A. Mach number
B. Froude number
C. Reynold’s number
D. Weber’s number
E. none of the above - The centre of gravity of the volume of the liquid displaced by an immersed body is called ___________________?
A. centre of gravity
B. centre of pressure
C. metacentre
D. centre of buoyancy
E. centroid - Bomb calorimeter is used to determine ___________________?
A. Higher calorific value at constant volume
B. Lower calorific value at constant volume ,
C. Higher calorific value at constant pressure
D. Lower calorific value at constant pressure
E. None of the above - Boiler parameters are expressed by ___________________?
A. tonnes/hr. of steam
B. pressure of steam in kg/cm2
C. temperature of steam in °C
D. all of the above
E. none of the above
