Related Questions
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The heating of a gas at constant pressure is governed by
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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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A hollow shaft of same cross-section area as compared to a solid shaft transmit
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For the same compression ratio, the efficiency of dual combustion cycle is
A. Greater than Diesel cycle and less than Otto cycle
B. Less than Diesel cycle and greater than Otto cycle
C. Greater than Diesel cycle
D. Less than Diesel cycle
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Which of the following has the highest calorific value?
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The absolute zero temperature is taken as
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Kerosene is distilled at
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The materials which exhibit the same elastic properties in all directions are called
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Brayton cycle consists' of following four processes
A. Two isothermals and two isentropic
B. Two isentropic and two constant volumes
C. Two isentropic, one constant volume and one constant pressure
D. Two isentropic and two constant pressures
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The maximum diameter of the hole that can be punched from a plate of maximum shear stress 1/4th of its maximum crushing stress of punch, is equal to (where t = Thickness of the plate)
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For riveting, the size of hole drilled in plates is __________ shank diameter of rivet.
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The work ratio of simple gas turbine cycle depends upon
A. Maximum cycle temperature
B. Minimum cycle temperature
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The maximum tangential stress in a thick cylindrical shell is always _________ the internal pressure acting on the shell.
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The stress at which extension of the material takes place more quickly as compared to the increase in load is called
A. Elastic point of the material
B. Plastic point of the material
C. Breaking point of the material
D. Yielding point of the material
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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 property of a working substance which increases or decreases as the heat is supplied or removed in a reversible manner, is known as
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In a free expansion process,
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The stress induced in a body, when suddenly loaded, is ________ the stress induced when the same load is applied gradually.
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A thin mild steel wire is loaded by adding loads in equal increments till it breaks. The extensions noted with increasing loads will behave as under
C. First increase and then decrease
D. Increase uniformly first and then increase rapidly
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The compression ratio for petrol engines is
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The pressure exerted by an ideal gas is ________ of the kinetic energy of all the molecules contained in a unit volume of gas.
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The ratio of the largest load in a test to the original cross-sectional area of the test piece is called
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The temperature at which the volume of a gas becomes zero is called
A. Absolute scale of temperature
B. Absolute zero temperature
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The efficiency of Diesel cycle increases with
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Elasticity of Mild Steel specimen is defined by
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One kg of carbon produces __________ kg of carbon dioxide.
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In a belt drive, the pulley diameter is doubled, the belt tension and pulley width remaining same. The changes required in key will be
D. Double all the dimensions
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The distance between the centres of the rivets in adjacent rows of zigzag riveted joint is known as
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If the value of n = 0 in the equation pvn = C, then the process is called
A. Constant volume process
C. Constant pressure process
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A cycle consisting of one constant pressure, one constant volume and two isentropic processes is known as