✅ The correct answer is option C.
Engineering MCQs
The energy released during the fission of one atom of Uranium – 235 in million electron volts is about
100
200
300
400
✅ The correct answer is option B.
The efficiency of a jet engine is higher at
low speeds
high speeds
low altitudes
high altitudes
✅ The correct answer is option D.
Where reactor operation is designed with fast neutrons such as in reactors using highly enriched fuel, the moderator used is
heavy water
graphite
carbon dioxide
no moderator is needed
✅ The correct answer is option D.
Stress concentration is caused due to
variations in load acting on a member
variations in properties of materials in a member
abrupt change of cross-section
all of these
✅ The correct answer is option C.
Cast iron during machining produces
continuous chips
discontinuous chips
continuous chips with built-up-edge
none of these
✅ The correct answer is option B.
The optimum effective temperature for human comfort is
higher in winter than in summer
lower in winter than in summer
same in winter and summer
not dependent on season
✅ The correct answer is option B.
If a number of forces are acting at a point, theirresultant will be inclined at an angle θ with the horizontal, such that
tan θ = ∑H/∑V
tan θ = ∑V/∑H
tan θ = ∑Vx∑H
✅ The correct answer is option B.
In a four stroke cycle petrol engine, the inlet valve
opens at top dead centre and closes at bottom dead centre
opens at 20° before top dead centre and closes at 40° after bottom dead centre
opens at 20° after top dead centre and closes at 20° before bottom dead centre id) may open or close anywhere
✅ The correct answer is option B.
The maximum number of jets, generally, employed in an impulse turbine without jet interference are
two
four
six
eight
✅ The correct answer is option C.