Wl3 / 48EI

5Wl3 / 384EI

Wl3 / 392EI

Wl3 / 384EI

A. Wl3 / 48EI

Temperature limits

Pressure ratio

Volume compression ratio

Cut-off ratio and compression ratio

π /4 × τ × D³

π /16 × τ × D³

π /32 × τ × D³

π /64 × τ × D³

Increases the internal energy of the gas

Increases the temperature of the gas

Does some external work during expansion

Both (B) and (C)

Otto cycle is more efficient than Diesel cycle

Diesel cycle is more efficient than Otto cycle

Efficiency depends on other factors

Both Otto and Diesel cycles are equally efficient

2

4

8

16

Specific heat at constant volume

Specific heat at constant pressure

kilo-Joule

None of these

Carbon

Hydrogen and nitrogen

Sulphur and ash

All of these

Temperature limits

Pressure ratio

Compression ratio

Cut-off ratio and compression ratio

1 : 2

1 : 3

1 : 4

1 : 2.5

Increases the internal energy of the gas and increases the temperature of the gas

Does some external work during expansion

Both (A) and (B)

None of these

The product of the gas constant and the molecular mass of an ideal gas is constant

The sum of partial pressure of the mixture of two gases is sum of the two

Equal volumes of all gases, at the same temperature and pressure, contain equal number of molecules

All of the above

One-half

One-third

Two-third

Three-fourth

Increase

Decrease

Remain same

Increase initially and then decrease

Heat and work crosses the boundary of the system, but the mass of the working substance does not crosses the boundary of the system

Mass of the working substance crosses the boundary of the system but the heat and work does not crosses the boundary of the system

Both the heat and work as well as mass of the working substance crosses the boundary of the system

Neither the heat and work nor the mass of the working substance crosses the boundary of the system

Thermodynamic law

Thermodynamic process

Thermodynamic cycle

None of these

Reversible cycles

Irreversible cycles

Semi-reversible cycles

Adiabatic irreversible cycles

Chain riveted joint

Diamond riveted joint

Crisscross riveted joint

Zigzag riveted joint

Its length is very small

Its cross-sectional area is small

The ratio of its length to the least radius of gyration is less than 80

The ratio of its length to the least radius of gyration is more than 80

Law of equipartition of energy

Law of conservation of energy

Law of degradation of energy

None of these

Wood charcoal

Bituminous coal

Briquetted coal

None of these

Tensile stress

Compressive stress

Shear stress

Strain

A Joule cycle consists of two constant volume and two isentropic processes.

An Otto cycle consists of two constant volume and two isentropic processes.

An Ericsson cycle consists of two constant pressure and two isothermal processes.

All of the above

0.287 J/kgK

2.87 J/kgK

28.7 J/kgK

287 J/kgK

Absolute pressure = Gauge pressure + Atmospheric pressure

Gauge pressure = Absolute pressure + Atmospheric pressure

Atmospheric pressure = Absolute pressure + Gauge pressure

Absolute pressure = Gauge pressure - Atmospheric pressure

Two constant volume and two isentropic

Two constant pressure and two isentropic

Two constant volume and two isothermal

One constant pressure, one constant volume and two isentropic

Increase

Decrease

Remain unchanged

Increase/decrease depending on application

Change the shape of the beam

Effect the saving in material

Equalise the strength in tension and compression

Increase the cross-section of the beam

The material A is more ductile than material B

The material B is more ductile than material A

The ductility of material A and B is equal

The material A is brittle and material B is ductile

l/δl

δl/l

l.δl

l + δl

0.086

1.086

1.086

4.086