A. increase
B. decrease
C. remain same
D. unpredictable
E. depend on other factors
Mechanical Engineering Mcqs
Two plates spaced 150 mm apart are maintained at 1000°C and 70°C. The heat transfer will take place mainly by ___________________?
A. convection
B. free convection
C. forced convection
D. radiation
E. radiation and convection
A compressor at high altitude will draw________________?
A. more power
B. less power
C. same power
D. more/less power depending on other factors
E. none of the above
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
E. conservation of mass
The main disadvantage of line organisation is_________________?
A. top level executives have to do excessive work
B. structure is rigid
C. communication delays occur
D. all of the above
E. none of the above
The pressure’of a gas in terms of its mean kinetic energy per unit volume E is equal to________________?
A. E/3
B. E/2
C. 3E/4
D. 2E/3
E. 5E/4
Diesel engine can work on very lean air fuel ratio of the order of 30 : 1. A petrol engine can also work on such a lean ratio provided__________________?
A. it is properly designed
B. best quality fuel is used
C. can not work as it is impossible
D. flywheel size is proper
E. engine cooling is stopped
The maximum strain energy that can be stored in a body is known as________________?
A. impact energy
B. resilience
C. proof resilience
D. modulus of resilience
E. toughness
The units of moment of inertia of mass are ________________?
A. kg m2
B. m4
C. kg/m2
D. kg/m
E. m2/kg
The specific heat of air increases with increase in __________________?
A. temperature
B. pressure
C. both pressure and temperature
D. variation of its constituents
E. air flow
