a single plane
two planes
three planes
four planes
✅ The correct answer is option B.
Mechanical Engineering MCQs
Which of the following statement is correct relating to rocket engines ?
The combustion chamber in a rocket engine is directly analogous to the reservoir of a super sonic wind tunnel
The stagnation conditions exist at the combustion chamber
The exit velocities of exhaust gases are much higher than those in jet engine
all of the above
✅ The correct answer is option D.
For a given dry bulb temperature, as the relative humidity __________ the wet bulb temperature will increase.
increases
decreases
✅ The correct answer is option B.
The three basic cylinder arrangements for automotive engines are
flat, radial, and V
in a row, in line, and opposed
in line, V, and opposed
V, double row, and opp
✅ The correct answer is option C.
The main function of the brake fluid is
lubrication
power transmission
cooling
none of these
✅ The correct answer is option B.
The loud pulsating noise heard within the cylinder of an internal combustion engine is known as
detonation
turbulence
pre-ignition
supercharging
✅ The correct answer is option A.
The flow in a pipe or channel is said to be non-uniform when
the liquid particles at all sections have the same velocities
the liquid particles at different sections have different velocities
the quantity of liquid flowing per second is constant
each liquid particle h
✅ The correct answer is option B.
Hydrogen is used in electrolux refrigeration system so as to __________ the rate of evaporation of the liquid ammonia passing through the evaporator.
equalise
reduce
increase
✅ The correct answer is option C.
When the piston is at T.D.C, the volume above the piston in the combustion chamber is the
clearance volume
cylinder volume
exhaust volume
none of these
✅ The correct answer is option A.