A steel bar of 5 mm is heated from 25°C to 45°C and it is free to expand. The bar will induce
No stress
Shear stress
Tensile stress
Compressive stress
- Which of the following statement is wrong?
- For which material the Poisson's ratio is more than unity
- After reaching the yielding stage while testing a mild steel specimen, strain
- When the expansion or compression takes place according to the law pvn = C, the process is known as
- The lower layer of the beam as shown in the below figure, will be
- A boiler shell 200 cm diameter and plate thickness 1.5 cm is subjected to internal pressure of 1.5 MN/m,…
- The sum of internal energy (U) and the product of pressure and volume (p.v) is known as
- Shear stress induced in a shaft subjected to tension will be
- The strain energy stored in a solid circular shaft in torsion, subjected to shear stress (τ), is:…
- The gas turbine cycle with regenerator improves
- According to Kelvin-Planck's statement of second law of thermodynamics,
- The distance between the centres of the rivets in adjacent rows of zigzag riveted joint is known as
- One reversible heat engine operates between 1600 K and T2 K and another reversible heat engine operates…
- For the constant pressure and heat input, the air standard efficiency of gas power cycle is in the order
- Which of the following statement is wrong?
- The heat energy stored in the gas and used for raising the temperature of the gas is known as
- The distillation carried out in such a way that the liquid with the lowest boiling point is first evaporated…
- When the gas is cooled at constant pressure,
- The moment of resistance of a balanced reinforced concrete beam is based on the stresses in
- According to kinetic theory of gases, the velocity of molecules __________ with the increase in temperature.
- Energy can neither be created nor destroyed, but it can be transformed from one form to another. This…
- The heating of a gas at constant pressure is governed by
- According to Avogadro's law, the density of any two gases is __________ their molecular masses, if the…
- The maximum diameter of the hole that can be punched from a plate of maximum shear stress 1/4th of its…
- Strain energy is the
- The efficiency of Stirling cycle is __________ Carnot cycle.
- The strain energy stored in a body due to suddenly applied load compared to when it is applied gradually…
- The heat and work are mutually convertible. This statement is called __________ law of thermodynamics.
- One kg of carbon requires 4/3 kg of oxygen and produces __________ kg of carbon monoxide gas.
- When cut-off ratio is __________ the efficiency of Diesel cycle approaches to Otto cycle efficiency.