Steel
Copper
Aluminium
None of the above
D. None of the above
Doubled
Halved
Becomes four times
None of the above
In tension
In compression
Neither in tension nor in compression
None of these
E = 3K.C/(3K + C)
E = 6K.C/(3K + C)
E = 9K.C/(3K + C)
E = 12K.C/(3K + C)
The pressure and temperature of the working substance must not differ, appreciably, from those of the surroundings at any stage in the process
All the processes, taking place in the cycle of operation, must be extremely slow
The working parts of the engine must be friction free
All of the above
Before point A
Beyond point A
Between points A and D
Between points D and E
√(KT/m)
√(2KT/m)
√(3KT/m)
√(5KT/m)
Thermal stresses
Tensile stress
Bending
No stress
Young's modulus
Bulk modulus
Modulus of rigidity
Poisson's ratio
Wood
Coke
Anthracite coal
Pulverised coal
50 %
25 %
20 %
30 %
Frequent heat treatment
Fatigue
Creep
Shock loading
Increase in availability of energy
Increase in temperature
Decrease in pressure
Degradation of energy
Absolute scale of temperature
Absolute zero temperature
Absolute temperature
None of these
Wood charcoal
Bituminous coke
Pulverised coal
Coke
3/7
7/3
11/3
3/11
Pressure exerted by the gas
Volume occupied by the gas
Temperature of the gas
All of these
τ²/ 2G × Volume of shaft
τ/ 2G × Volume of shaft
τ²/ 4G × Volume of shaft
τ/ 4G × Volume of shaft
L = l/2
L = l/√2
L = l
L = 2l
Greater than
Less than
Equal to
None of these
Elastic limit
Yield stress
Ultimate stress
Breaking stress
Molecular mass of the gas and the specific heat at constant volume
Atomic mass of the gas and the gas constant
Molecular mass of the gas and the gas constant
None of the above
mm/mm
kg/cm
Kg
kg/cm²
Uniform throughout
Increase uniformly
First increase and then decrease
Increase uniformly first and then increase rapidly
Bending moment (i.e. M)
Bending moment² (i.e. M²)
Bending moment³ (i.e. M³)
Bending moment⁴ (i.e. M⁴)
(σx + σy)/2 + (1/2) × √[(σx - σy)² + 4 τ²xy]
(σx + σy)/2 - (1/2) × √[(σx - σy)² + 4 τ²xy]
(σx - σy)/2 + (1/2) × √[(σx + σy)² + 4 τ²xy]
(σx - σy)/2 - (1/2) × √[(σx + σy)² + 4 τ²xy]
Considerably greater than that necessary to continue it
Considerably lesser than that necessary to continue it
Greater than that necessary to stop it
Lesser than that necessary to stop it
There is no change in temperature
There is no change in enthalpy
There is no change in internal energy
All of these
0.224 litres
2.24 litres
22.4 litres
224 litres
Its temperature increases but volume decreases
Its volume increases but temperature decreases
Both temperature and volume increases
Both temperature and volume decreases
The first row
The second row
The central row
One rivet hole of the end row