Related Questions
What is the correct answer?
4
The efficiency of the dual combustion cycle for the same compression ratio is __________ Diesel cycle.
What is the correct answer?
4
When a gas is heated, change takes place in
What is the correct answer?
4
Which of the following is a proper sequence?
A. Proportional limit, elastic limit, yielding, failure
B. Elastic limit, proportional limit, yielding, failure
C. Yielding, proportional limit, elastic limit, failure
What is the correct answer?
4
The compression ratio for petrol engines is
What is the correct answer?
4
The value of 1 mm of Hg is equal to
What is the correct answer?
4
According to Regnault's law, the specific heat at constant pressure (cp) and specific heat at constant volume (cv) _________ with the change in pressure and temperature of the gas.
What is the correct answer?
4
The stress developed in a material at breaking point in extension is called
D. Ultimate tensile stress
What is the correct answer?
4
The ratio of the largest load in a test to the original cross-sectional area of the test piece is called
What is the correct answer?
4
In case of an under-reinforced beam, the depth of actual neutral axis is __________ that of the critical neutral axis.
What is the correct answer?
4
In a uniform bar, supported at one end in position, the maximum stress under self weight of bar shall occur at the
What is the correct answer?
4
When shear force at a point is zero, then bending moment is _________ at that point.
What is the correct answer?
4
When wood is heated with a limited supply of air to a temperature not less than 280°C, the resulting fuel is
What is the correct answer?
4
When a closely-coiled helical spring of mean diameter (D) is subjected to an axial load (W), the stiffness of the spring is given by
What is the correct answer?
4
Workdone during adiabatic expansion is given by (where p1 v1, T1 = Pressure, volume and temperature for the initial condition of gas, p2, v2, T2 = Corresponding values for the final condition of gas, R = Gas constant, and γ = Ratio of specific heats)
A. (p1 v1 - p2 v2)/(γ - 1)
B. [m R (T1 - T2)] /(γ - 1)
C. [m R T1/(γ - 1)][1 - (p2 v2 /p1 v1)]
What is the correct answer?
4
Which of the following is an irreversible cycle?
What is the correct answer?
4
The maximum bending moment for the beam shown in the below figure, is
What is the correct answer?
4
The root mean square velocity of the gas molecules is given by (where k = Boltzmann's constant, T = Absolute temperature, and m = Mass of one molecule of a gas)
What is the correct answer?
4
When a thin cylindrical shell is subjected to an internal pressure, the volumetric strain is (where ε₁ = Hoop strain, and ε₂ = Longitudinal strain)
What is the correct answer?
4
A composite bar made up of steel and copper bars of equal lengths are heated through 100°C. The stresses developed shall be
A. Tensile in both the material
B. Tensile in steel and compressive in copper
C. Compressive in steel and tensile in copper
D. Compressive in both the materials
What is the correct answer?
4
The behaviour of a perfect gas, undergoing any change in the variables which control physical properties, is governed by
What is the correct answer?
4
If the radius of wire stretched by a load is doubled, then its Youngs modulus will be
What is the correct answer?
4
Stirling and Ericsson cycles are
C. Semi-reversible cycles
What is the correct answer?
4
One kg of carbon monoxide requires _______kg of oxygen to produce 11/7 kg of carbon dioxide gas.
What is the correct answer?
4
The standard value of atmospheric pressure taken at sea level is
What is the correct answer?
4
The change of entropy, when heat is absorbed by the gas, is
What is the correct answer?
4
The value of cp/cv for air is
What is the correct answer?
4
Otto cycle is also known as
A. Constant pressure cycle
C. Constant temperature cycle
D. Constant temperature and pressure cycle
What is the correct answer?
4
Slenderness of a column is zero when
B. Column is supported on all sides throughout the length
C. Length is equal to radius of gyration
D. Length is twice the radius of gyration
What is the correct answer?
4
If Th is the torque resisting capacity of a hollow shaft and Ts is that of a solid shaft, of the same material, length and weight. Then,
What is the correct answer?
4
According to Avogadro's law, the density of any two gases is __________ their molecular masses, if the gases are at the same temperature and pressure.
B. Directly proportional to
C. Inversely proportional to