Two isothermal and two isentropic
Two isentropic and two constant volumes
Two isentropic, one constant volume and one constant pressure
Two isentropic and two constant pressures
C. Two isentropic, one constant volume and one constant pressure
Carnot cycle
Rankine cycle
Brayton cycle
Bell Coleman cycle
0°C
273°C
273 K
None of these
2/3
3/4
1
9/8
One right angled triangle
Two right angled triangles
One equilateral triangle
Two equilateral triangles
Same
Twice
Four times
Eight times
11/7
9/7
4/7
All of the above
65° to 220°C
220° to 345°C
345° to 470°C
470° to 550°C
Volumetric stress and volumetric strain
Lateral stress and lateral strain
Longitudinal stress and longitudinal strain
Shear stress to shear strain
Hard coke
Soft coke
Pulverised coal
Bituminous coal
When coal is first dried and then crushed to a fine powder by pulverising machine
From the finely ground coal by moulding under pressure with or without a binding material
When coal is strongly heated continuously for 42 to 48 hours in the absence of air in a closed vessel
By heating wood with a limited supply of air to a temperature not less than 280°C
Element
Compound
Atom
Molecule
50 %
25 %
0 %
15 %
Very low
Low
High
Very high
8.314 J/kg mole-K
83.14 J/kgmole-K
831.4 J/kgmole-K
8314 J/kgmole-K
τ²/ 2G × Volume of shaft
τ/ 2G × Volume of shaft
τ²/ 4G × Volume of shaft
τ/ 4G × Volume of shaft
Th > Ts
Th < Ts
Th = Ts
None of these
Breaking stress
Fracture stress
Yield point stress
Ultimate tensile stress
Shear modulus
Section modulus
Polar modulus
None of these
Otto cycle is more efficient than Diesel cycle
Diesel cycle is more efficient than Otto cycle
Dual cycle is more efficient than Otto and Diesel cycles
Dual cycle is less efficient than Otto and Diesel cycles
0°
30°
45°
90°
Its length is very small
Its cross-sectional area is small
The ratio of its length to the least radius of gyration is less than 80
The ratio of its length to the least radius of gyration is more than 80
1
1.4
1.45
2.3
Straight line formula
Eulers formula
Rankines formula
Secant formula
No heat enters or leaves the gas
The temperature of the gas changes
The change in internal energy is equal to the mechanical workdone
All of the above
Tensile stress
Compressive stress
Shear stress
Strain
Reversible process
Irreversible process
Reversible or irreversible process
None of these
Low
Very low
High
Very high
Homogeneous
Inelastic
Isotropic
Isentropic
Same
More
Less
Unpredictable
0.224 litres
2.24 litres
22.4 litres
224 litres