Malleability
Ductility
Plasticity
Elasticity
A. Malleability
All the reversible engines have the same efficiency.
All the reversible and irreversible engines have the same efficiency.
Irreversible engines have maximum efficiency.
All engines are designed as reversible in order to obtain maximum efficiency.
mR (T2 - T1)
mcv (T2 - T1)
mcp (T2 - T1)
mcp (T2 + T1)
Isothermal process
Hyperbolic process
Adiabatic process
Polytropic process
Maximum at periphery and zero at center
Maximum at center
Uniform throughout
None of the above
Maximum shear stress
No shear stress
Minimum shear stress
None of the above
Mild steel
Cast iron
Concrete
Bone of these
65° to 220°C
220° to 345°C
345° to 470°C
470° to 550°C
Wood charcoal
Bituminous coke
Pulverised coal
Coke
Carnot cycle
Otto cycle
Joule's cycle
Stirling cycle
Dual cycle, Diesel cycle, Otto cycle
Otto cycle, Diesel cycle, Dual cycle
Dual cycle, Otto cycle, Diesel cycle
Diesel cycle, Otto cycle, Dual cycle
More
Less
Same
More/less depending on composition
2/3
3/4
1
9/8
Proportional limit, elastic limit, yielding, failure
Elastic limit, proportional limit, yielding, failure
Yielding, proportional limit, elastic limit, failure
None of the above
8.314 J/kg mole-K
83.14 J/kgmole-K
831.4 J/kgmole-K
8314 J/kgmole-K
Dual combustion cycle
Diesel cycle
Atkinson cycle
Rankine cycle
50 %
25 %
20 %
30 %
M/I = σ/y = E/R
T/J = τ/R = Cθ/l
M/R = T/J = Cθ/l
T/l= τ/J = R/Cθ
Tensile
Compressive
Shear
Zero
1 - rγ - 1
1 + rγ - 1
1 - (1/ rγ - 1)
1 + (1/ rγ - 1)
Swept volume to total volume
Total volume to swept volume
Swept volume to clearance volume
Total volume to clearance volume
Fixed at both ends
Fixed at one end and free at the other end
Supported on more than two supports
Extending beyond the supports
Not deform
Be safest
Stretch
Not stretch
Equal to
Less than
Greater than
None of these
Radius
Diameter
Circumference
Area
When molecular momentum of the system becomes zero
At sea level
At the temperature of - 273 K
At the centre of the earth
Zeroth
First
Second
Third
Element
Compound
Atom
Molecule
Equal to one
Less than one
Greater than one
None of these
1/27th
1/93th
1/173th
1/273th
Energy stored in a body when strained within elastic limits
Energy stored in a body when strained up to the breaking of the specimen maximum strain
Energy which can be stored in a body
None of the above