-140 kJ
-80 kJ
-40 kJ
+60 kJ
D. +60 kJ
Steel only
Concrete only
Steel and concrete both
None of these
Area at the time of fracture
Original cross-sectional area
Average of (A) and (B)
Minimum area after fracture
65° to 220°C
220° to 345°C
345° to 470°C
470° to 550°C
Tensile strain increases more quickly
Tensile strain decreases more quickly
Tensile strain increases in proportion to the stress
Tensile strain decreases in proportion to the stress
Increase in availability of energy
Increase in temperature
Decrease in pressure
Degradation of energy
Isothermal process
Adiabatic process
Hyperbolic process
Polytropic process
More than 50 %
25-50 %
10-25 %
Negligible
Lap joint
Butt joint
Single riveted single cover butt joint
Double riveted double cover butt joint
Greater than Diesel cycle and less than Otto cycle
Less than Diesel cycle and greater than Otto cycle
Greater than Diesel cycle
Less than Diesel cycle
Pressure and temperature
Temperature and volume
Heat and work
All of these
Elastic point of the material
Plastic point of the material
Breaking point of the material
Yielding point of the material
Boyle's law
Charles' law
Gay-Lussac law
Avogadro's law
Tensile
Compressive
Shear
Zero
Partial combustion of coal, coke, anthracite coal or charcoal in a mixed air steam blast
Carbonisation of bituminous coal
Passing steam over incandescent coke
Passing air and a large amount of steam over waste coal at about 650°C
Tensile stress
Compressive stress
Shear stress
Thermal stress
Workdone
Entropy
Enthalpy
None of these
Change in volume to original volume
Change in length to original length
Change in cross-sectional area to original cross-sectional area
Any one of the above
Shear force changes sign
Bending moment changes sign
Shear force is maximum
Bending moment is maximum
The deformation of the bar per unit length in the direction of the force is called linear strain.
The Poisson's ratio is the ratio of lateral strain to the linear strain.
The ratio of change in volume to the original volume is called volumetric strain.
The bulk modulus is the ratio of linear stress to the linear strain.
2ε₁ - ε₂
2ε₁ + ε₂
2ε₂ - ε₁
2ε₂ + ε₁
Law of equipartition of energy
Law of conservation of energy
Law of degradation of energy
None of these
K₁ K₂
(K₁ + K₂)/ 2
(K₁ + K₂)/ K₁ K₂
K₁ K₂/ (K₁ + K₂)
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.
Maximum cycle temperature
Minimum cycle temperature
Pressure ratio
All of these
Loss of heat
No loss of heat
Gain of heat
No gain of heat
Sum
Difference
Multiplication
None of the above
Carnot cycle
Stirling cycle
Otto cycle
Diesel cycle
1 : 2
1 : 3
1 : 4
1 : 2.5
Boyle's law
Charles' law
Gay-Lussac law
Joule's law
Same
Lower
Higher
None of these