higher
lower
✅ The correct answer is option A.
Engineering MCQs
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.
A three way catalytic converter
recirculates exhaust gasses
burns fuel vapaour gasses
reduces N2, H2O, and CO2 emission levels
removes CO, HC, and NO
✅ The correct answer is option D.
In the austempering process of heat treatment, austenite changes into
martensite
troostite
sorbite
bainite
✅ The correct answer is option D.
A bottoming tap has
its end tapered for about three or four threads
its end tapered for about eight or ten threads
full threads for the whole of its length
none of the above
✅ The correct answer is option C.
The oxidising flame is similar to neutral flame but the inner cone is less luminous and shorter.
Yes
No
✅ The correct answer is option A.
The time taken by a particle for one complete oscillation is known as periodic time.
Agree
Disagree
✅ The correct answer is option A.
The load required to produce a unit deflection in a spring is called
flexural rigidity
torsional rigidity
spring stiffness
Young’s modulus
✅ The correct answer is option C.