directly proportional to density of fluid
inversely proportional to density of fluid
directly proportional to (density)1/2 of fluid
inversely proportional
✅ The correct answer is option C.
Mechanical Engineering MCQs
In a Diesel engine, the function of a fuel injector is to
mix the fuel and air
ignite the air-fuel mixture
provide flame front for ignition
spray atomized fuel in
✅ The correct answer is option D.
Climb milling is chosen while machining because
the chip thickness increase gradually
it enables the cutter to dig in and start the cut
the specific power consumption is reduced
better surface finish
✅ The correct answer is option B.
A localised compressive stress at the area of contact between two members is known as
tensile stress
bending stress
bearing stress
shear stress
✅ The correct answer is option C.
In the calculation of induced shear stress in helical springs, the Wahl’s stress factor is used to take care of
combined effect of transverse shear stress and bending stress in the wire
combined effect of bending stress and curvature of the wire
combined effect of transverse shear stress and curvature of wire
combined effect of tor
✅ The correct answer is option B.
Special reactors, called breeder reactors, supply a net gain of fissionable material.
TRUE
FALSE
✅ The correct answer is option A.
The viscosity of water is __________ than that of mercury.
higher
lower
✅ The correct answer is option A.
The aluminium alloy made by melting aluminium with 2 to 10% magnesium and 1.75% copper is called
duralumin
Y-alloy
magnalium
hindalium
✅ The correct answer is option C.
A compound cylinder with inner radius 50 mm and outer radius 70 mm is made by shrinking one cylinder on to the other cylinder, The junction radius is 60 mm and the junction pressure is 1.1 N/mm2. The maximum hoop stress developed in the inner cylinder is
3.6 N/mm2 compression
3.6 N/mm2 tension
7.2 N/mm2 compression
7.2 N/mm2 tension
✅ The correct answer is option C.
In normalising process, the hypo-eutectiod steel is heated from 30° C to 50° C above the upper critical temperature and then cooled in still air.
TRUE
FALSE
✅ The correct answer is option A.