For a given compression ratio, both Otto and Diesel cycles have the same efficiency.
For a given compression ratio, Otto cycle is more efficient than Diesel cycle.
For a given compression ratio, Diesel cycle is more efficient than Otto cycle.
The efficiency of Otto or Diesel cycle has nothing to do with compression ratio.
B. For a given compression ratio, Otto cycle is more efficient than Diesel cycle.
The stress is the pressure per unit area
The strain is expressed in mm
Hook's law holds good upto the breaking point
Stress is directly proportional to strain within elastic limit
Measure shear strain
Measure linear strain
Measure volumetric strain
Relieve strain
Principal stresses
Normal stresses on planes at 45°
Shear stresses on planes at 45°
Normal and shear stresses on a plane
Mild steel
Cast iron
Concrete
Bone of these
No stress
Shear stress
Tensile stress
Compressive stress
Half
Same amount
Double
One-fourth
From maximum at the centre to zero at the circumference
From zero at the centre to maximum at the circumference
From maximum at the centre to minimum at the circumference
From minimum at the centre to maximum at the circumference
-140 kJ
-80 kJ
-40 kJ
+60 kJ
Sum of two principal stresses
Difference of two principal stresses
Half the sum of two principal stresses
Half the difference of two principal stresses
Ideal materials
Uniform materials
Isotropic materials
Piratical materials
wl/4
wl/2
wl
wl²/2
Sum
Difference
Product
Ratio
Volumetric stress and volumetric strain
Lateral stress and lateral strain
Longitudinal stress and longitudinal strain
Shear stress to shear strain
Less than
Equal to
More than
None of these
Carnot
Ericsson
Stirling
None of the above
Atomisation
Carbonisation
Combustion
None of these
2.1 × 10⁵ kg/cm²
2.1 × 10⁶ kg/cm²
2.1 × 10⁷ kg/cm²
0.1 × 10⁶ kg/cm²
3p/E × (2/m - 1)
3p/E × (2 - m)
3p/E × (1 - 2/m)
E/3p × (2/m - 1)
300° to 500°C
500° to 700°C
700° to 900°C
900° to 1100°C
Carnot cycle
Rankine cycle
Brayton cycle
Bell Coleman cycle
Hookes law
Yield point
Plastic flow
Proof stress
(p - 2d) t × σc
(p - d) t × τ
(p - d) t × σt
(2p - d) t × σt
Brayton cycle
Joule cycle
Carnot cycle
Reversed Brayton cycle
Heat
Work
Internal energy
Entropy
No stress
Shear stress
Tensile stress
Compressive stress
Producer gas
Coal gas
Mond gas
Coke oven gas
Chain riveted joint
Diamond riveted joint
Crisscross riveted joint
Zigzag riveted joint
Carbon
Hydrogen and nitrogen
Sulphur and ash
All of these
Cd⁴/D3n
Cd⁴/2D3n
Cd⁴/4D3n
Cd⁴/8D3n
Increase
Decrease
Remain unchanged
Increase/decrease depending on application