Which of the following is the ductile material?
A.Silver
B.Brass
C.Stainless steel
D.Zinc
E.Aluminium
Category: Mechanical Engineering Mcqs
Graphitic cast iron is
A.hard
B.non-machinable
C.high in compressive strength
D.low in damping capacity
For extinguishing electrical fires
A.Water should be sprinkled
B.Conductors should be erthed
C.Rubber pieces should be thrown
D.Carbon tetrachloride fire extinguisher should be used
E.Carbondioxide fire extinguisher should be used
If air resistance is neglected, at the mid-point of its swing, the acceleration of the bob of a simple pendulum along its path is always
A.Zero
B.A minimum but not equal to zero
C.Increasing
D.Decreasing
For each ton of pig iron produced in a blast furnace, the amount of ore used is approximately.
A.1 ton
B.2 tons
C.5 tons
D.13 tons
E.12.5 tons
All elastic materials
A.Elongate on the application of load
B.Shrink on the application of load
C.Permanently deform under load
D.Do not deform under load
E.None of the above
Contraction allowance for grey cast iron is (in mm/m)
A.30
B.10.5
C.21
The length of mercury column at a place at an altitude will vary with respect to that at ground in a
A.Linear relation
B.Hyperbolic relation
C.Parabolic relation
D.Will remain constant
E.First slowly and then steeply
The value of universal gas constant in S.I. units is
A.8314 J/kg mole/?k
B.831.4 J/kg mole/?k
C.83.14 J/kg mole/?k
D.8.314 J/kg mole/?k
E.0.8314 J/kg mole/?k
The advertisement cost is included
A.In fixed cost
B.Sometimes in fixed cost and sometimes in variable costs
C.Always in variable costs
D.Never included in variable costs
E.It is a separate head of costs
