Related Questions
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When a body is subjected to a direct tensile stress (σx) in one plane accompanied by a simple shear stress (τxy), the maximum normal stress i
A. (σx/2) + (1/2) × √(σx² + 4 τ²xy)
B. (σx/2) - (1/2) × √(σx² + 4 τ²xy)
C. (σx/2) + (1/2) × √(σx² - 4 τ²xy)
D. (1/2) × √(σx² + 4 τ²xy)
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In a free expansion process,
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A process of heating crude oil to a high temperature under a very high pressure to increase the yield of lighter distillates, is known as
C. Fractional distillation
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The compression ratio for Diesel engines is
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Which of the following gas is mostly used in town for street and domestic lighting and heating?
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The shear force at the centre of a simply supported beam with a gradually varying load from zero at both ends to w per metre at the centre, is
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Which of the following statement is wrong?
A. The closed cycle gas turbine plants are external combustion plants.
B. In the closed cycle gas turbine, the pressure range depends upon the atmospheric pressure.
C. The advantage of efficient internal combustion is eliminated as the closed cycle has an external surface.
D. In open cycle gas turbine, atmosphere acts as a sink and no coolant is required.
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4
The moment of resistance of a balanced reinforced concrete beam is based on the stresses in
C. Steel and concrete both
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The efficiency of a Carnot engine depends on
D. Temperatures of source and sink
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For the beam shown in the below figure, the shear force diagram between A and B is
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A shaft revolving at ω rad/s transmits torque (T) in Nm. The power developed is
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The reading of the pressure gauge fitted on a vessel is 25 bar. The atmospheric pressure is 1.03 bar and the value of 'g' is 9.81 m/s2. The absolute pressure in the vessel is
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The bending moment of a cantilever beam of length l and carrying a uniformly distributed load of w per unit length is __________ at the fixed end.
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When a body is subjected to three mutually perpendicular stresses, of equal intensity, the ratio of direct stress to the corresponding volumetric strain is known as
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Which of the following cycles has maximum efficiency?
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If the radius of wire stretched by a load is doubled, then its Youngs modulus will be
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The amount of heat required to raise the temperature of 1 kg of water through one Kelvin is called
A. Specific heat at constant volume
B. Specific heat at constant pressure
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When the gas is heated at constant volume, the heat supplied
A. Increases the internal energy of the gas and increases the temperature of the gas
B. Does some external work during expansion
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The gas constant (R) is equal to the __________ of two specific heats.
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The ultimate analysis of coal consists of the determination of the percentage of
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When both ends of a column are fixed, the effective length is
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A path 1-2-3 is given. A system absorbs 100 kJ as heat and does 60 kJ of work while along the path 1-4-3, it does 20 kJ of work. The heat absorbed during the cycle 1-4-3 is
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The efficiency of Stirling cycle is __________ Carnot cycle.
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The specific heat at constant volume is
A. The amount of heat required to raise the temperature of unit mass of gas through one degree, at constant pressure
B. The amount of heat required to raise the temperature of unit mass of gas through one degree, at constant volume
C. The amount of heat required to raise the temperature of 1 kg of water through one degree
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Which of the following is the extensive property of a thermodynamic system?
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The efficiency of the Carnot cycle may be increased by
A. Increasing the highest temperature
B. Decreasing the highest temperature
C. Increasing the lowest temperature
D. Keeping the lowest temperature constant
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A material obeys hooks law up to
D. Limit of proportionality
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A process, in which the gas is heated or expanded in such a way that the product of its pressure and volume remains constant, is called
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The intensity of stress which causes unit strain is called
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The state of a substance whose evaporation from its liquid state is complete, is known as