Mechanical Engineering Mcqs
Kelvin Planck’s law deals with___________________?

A. Conservation of heat
B. Conservation of work
C. Conversion of heat into work
D. Conversion fo work into heat

Thermal power plant works on______________?

A. Carnot cycle
B. Joule cycle
C. Rankine cycle
D. Otto cycle

Otto cycle consists of following four processes____________________?

A. Two isothermals and two isentropics
B. Two isentropics and two constant volumes
C. Two isentropics, one constant volume and one constant pressure
D. Two isentropics and two constant pres-sures

For same compression ratio and for same heat added_________________?

A. Otto cycle is more efficient than diesel cycle
B. Diesel cycle is more efficient than otto cycle
C. Efficiency depends on other factors
D. Both otto and diesel cycles are equally efficient

Carnot cycle is__________________?

A. A reversible cycle (ft) an irreversible cycle
C. A semi-reversible cycle
D. A quasi static cycle
E. An adiabatic irreversible cycle

Brayton cycle consists’ of following four processes____________________?

A. Two isothermals and two isentropics
B. Two isentropics and two constant volumes
C. Two isentropics, one constant volume and one constant pressure
D. Two isentropics and two constant pres-sures