The mass of carbon per kg of flue gas is given by

Question

The mass of carbon per kg of flue gas is given by

A. (11/3) CO₂ + (3/7) CO

B. (3/7) CO₂ + (11/3) CO

C. (7/3) CO₂ + (3/11) CO

D. (3/11) CO₂ + (7/3) CO

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The efficiency and work ratio of a simple gas turbine cycle are

A. Very low

B. Low

C. High

D. Very high

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The neutral axis of a transverse section of a beam passes through the centre of gravity of the section and is

A. In the vertical plane

B. In the horizontal plane

C. In the same plane in which the beam bends

D. At right angle to the plane in which the beam bends

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The ultimate analysis of coal consists of the determination of the percentage of

A. Carbon

B. Hydrogen and nitrogen

C. Sulphur and ash

D. All of these

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The general gas energy equation is (where Q1 - 2 = Heat supplied, dU = Change in internal energy, and W1 - 2 = Work done in heat units)

A. Q_{1 - 2} = dU + W_{1 - 2}

B. Q_{1 - 2} = dU - W_{1 - 2}

C. Q_{1 - 2} = dU/W_{1 - 2}

D. Q_{1 - 2} = dU × W_{1 - 2}

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A cantilever beam is one which is

A. Fixed at both ends

B. Fixed at one end and free at the other end

C. Supported at its ends

D. Supported on more than two supports

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The __________ states that change of internal energy of a perfect gas is directly proportional to the change of temperature.

A. Boyle's law

B. Charle's law

C. Gay-Lussac law

D. Joule's law

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Which of the following is the extensive property of a thermodynamic system?

A. Pressure

B. Volume

C. Temperature

D. Density

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In order to prevent crushing of masonry at the base of the dam, the maximum stress should be __________ the permissible stress of the soil.

A. Equal to

B. Less than

C. More than

D. None of these

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The efficiency of Ericsson cycle is __________ Carnot cycle.

A. Greater than

B. Less than

C. Equal to

D. None of these

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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

C. Absolute temperature

D. None of these

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The ratio of elongation in a prismatic bar due to its own weight (W) as compared to another similar bar carrying an additional weight (W) will be

A. 1 : 2

B. 1 : 3

C. 1 : 4

D. 1 : 2.5

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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

A. Cd⁴/D³n

B. Cd⁴/2D³n

C. Cd⁴/4D³n

D. Cd⁴/8D³n

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The gas constant (R) is equal to the __________ of two specific heats.

A. Sum

B. Difference

C. Product

D. Ratio

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Tensile strength of a material is obtained by dividing the maximum load during the test by the

A. Area at the time of fracture

B. Original cross-sectional area

C. Average of (A) and (B)

D. Minimum area after fracture

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In the below figure, the plastic range occurs

A. Before point A

B. Beyond point A

C. Between points A and D

D. Between points D and E

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An adiabatic process is one in which

A. No heat enters or leaves the gas

B. The temperature of the gas changes

C. The change in internal energy is equal to the mechanical workdone

D. All of the above

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Which of the following gas is mostly used in town for street and domestic lighting and heating?

A. Producer gas

B. Coal gas

C. Mond gas

D. Coke oven gas

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The assumption made in Euler's column theory is that

A. The failure of column occurs due to buckling alone

B. The length of column is very large as compared to its cross-sectional dimensions

C. The column material obeys Hooke's law

D. All of the above

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A closely-coiled helical spring is cut into two halves. The stiffness of the resulting spring will be

A. Same

B. Double

C. Half

D. One-fourth

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The variables which control the physical properties of a perfect gas are

A. Pressure exerted by the gas

B. Volume occupied by the gas

C. Temperature of the gas

D. All of these

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In a free expansion process,

A. W_{1 - 2} = 0

B. Q_{1 - 2} = 0

C. dU = 0

D. All of these

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In an irreversible process, there is a

A. Loss of heat

B. No loss of heat

C. Gain of heat

D. No gain of heat

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Within elastic limit, stress is

A. Inversely proportional to strain

B. Directly proportional to strain

C. Square root of strain

D. Equal to strain

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The maximum shear stress, in the given figure, is equal to __________ of the Mohr's circle.

A. Radius

B. Diameter

C. Circumference

D. Area

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In an ideal gas turbine plant, it is assumed that the compression and expansion processes are

A. Isothermal

B. Isentropic

C. Polytropic

D. None of these

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Slenderness of a column is zero when

A. Ends are firmly fixed

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

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The tensile strength of the welded joint for double fillet is (where s = Leg or size of the weld, l = Length of weld, and σt = Allowable tensile stress for weld metal)

A. 0.5 s.l.σ_t

B. s.l.σ_t

C. √2 s.l.σ_t

D. 2.s.l.σt

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For riveting, the size of hole drilled in plates is __________ shank diameter of rivet.

A. Equal to

B. Less than

C. Greater than

D. None of these

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In S. I. units, the value of the universal gas constant is

A. 8.314 J/kg mole-K

B. 83.14 J/kgmole-K

C. 831.4 J/kgmole-K

D. 8314 J/kgmole-K

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The efficiency of Diesel cycle approaches to Otto cycle efficiency when

A. Cut-off is increased

B. Cut-off is decreased

C. Cut-off is zero

D. Cut-off is constant

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Accepted Answer

A. (11/3) CO₂ + (3/7) CO

The mass of carbon per kg of flue gas is given by

Correct Answer :

Show all Strength of Materials MCQ

Related Questions

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