[A].
[B].
[C].
[D].
✅ The correct answer is option C.
Engineering MCQs
The object of supercharging the engine is
[A]. to reduce mass ofthe engine per brake power
[B]. to reduce space occupied by the engine
[C]. to increase the power output of an engine when greater power is required
[D]. all ofthe above
✅ The correct answer is option D.
According to Avogadro’s law, the density of any two gases is __________ their molecular masses, if the gases are at the same temperature and pressure.
[A]. equal to
[B]. directly proportional to
[C]. inversely proportional to
null
✅ The correct answer is option B.
The path of the projectile is a parabola.
[A]. True
[B]. False
null
null
✅ The correct answer is option A.
The velocity of steam leaving the nozzle (V) is given by (where K = Nozzle coefficient or nozzle efficiency, and hd = Enthalpy or heat drop during expansion of steam in a nozzle)
[A]. V = 44.72 hd K
[B]. V = 44.72 K hd
[C]. V = 44.72 K hd
[D]. V = 44.72 K hd
✅ The correct answer is option C.
In a De-Laval nozzle expanding superheated steam from 10 bar to 0.1 bar, the pressure at the minimum cross-section (i. e. pressure at throat, p2) will be
[A]. 3.3 bar
[B]. 5.46 bar
[C]. 8.2 bar
[D]. 9.9 bar
✅ The correct answer is option B.
The tolerance produced by shell moulding process of casting is
[A]. +0.05 mm
[B]. ±0.2 mm
[C]. +0.5 mm
[D]. ±1 mm
✅ The correct answer is option B.
In order to avoid excessive multiplication of facilities, the layout preferred is
[A]. product layout
[B]. process layout
[C]. group layout
[D]. static layout
✅ The correct answer is option B.
Euler’s equation in the differential form for the motion of liquids is given by
[A].
[B].
[C]. ρ.dp + g.dz + v.dv = 0
[D]. ρ.dp – g.dz + v.dv = 0
✅ The correct answer is option A.
String diagram is used
[A]. for checking the relative values of various layouts
[B]. when a group of workers are working at a place
[C]. where processes require the operator to be moved from one work place to another
[D]. all of the above
✅ The correct answer is option D.