Correct
Incorrect
✅ The correct answer is option A.
Mechanical Engineering MCQs
During sensible heating of air, specific humidity remains constant.
Agree
Disagree
✅ The correct answer is option A.
When the weld is made from left to right, it is known as back-hand welding.
Agree
Disagree
✅ The correct answer is option A.
The rear teeth of a broach
perform burnishing operation
remove minimum metal
remove maximum metal
remove no metal
✅ The correct answer is option C.
In which of the following machine, the work is usually rotated while the drill is fed into work?
Sensitive drilling machine
Radial drilling machine
Gang drilling machine
Deep hole drilling mac
✅ The correct answer is option D.
A hemispherical tank of radius (R) containing liquid upto height (H1) has an orifice of cross-sectional area (a) at its bottom. The time required to lower the level of liquid from (H1) to (H2) will be
none of the above
✅ The correct answer is option C.
The compression ratio in petrol engines is kept low as compared to diesel engines because higher compression ratio in petrol engines would lead to pre-ignition of fuel.
Agree
Disagree
✅ The correct answer is option A.
Shear strength of the welded joint for double parallel fillet is (where τ = Allowable shear stress for weld metal)
0.5 s.l.τ
s.l.τ
2 s.l.τ
2.s.l.τ
✅ The correct answer is option C.
When a circular bar tapering uniformly from diameter d1, at one end to diameter d2 at the other end, is subjected to an increase in temperature (t), then the thermal stress induced is (where α = Coefficient of linear expansion, and E = Modulus of elasticity for the bar material)
✅ The correct answer is option A.