Correct
Incorrect
✅ The correct answer is option A.
Mechanical Engineering MCQs
The product layout
lowers overall manufacturing time
requires less space for placing machines
utilises machine and labour better
all of these
✅ The correct answer is option D.
Killed steels
have minimum impurity level
are produced by L-D process
have almost zero percentage of phosphorus and sulphur
are free from oxygen
✅ The correct answer is option D.
The operation of producing cup shaped parts from flat sheet metal blanks by bending and plastic flow of metal, is known as
drawing
squeezing
coining
planishing
✅ The correct answer is option A.
The emissive power of a body depends upon its
temperature
physical nature
wave length
all of these
✅ The correct answer is option D.
Riddle is used for
smoothing and cleaning out depressions in the mould
cleaning the moulding sand
moistening the sand around the edge before removing pattern
reinforcement of sand
✅ The correct answer is option B.
The piston pin bearings in heavy duty diesel engines are
needle roller bearings
tapered rolierbearings
spherical roller bearings
cylindrical roller bea
✅ The correct answer is option A.
The operation of straightening a curved sheet metal, is known as
drawing
squeezing
coining
planishing
✅ The correct answer is option D.
A screw will be self locking, if
friction angle is less than helix angle
friction angle is more than helix angle
friction angle is equal to helix angle
efficiency of screw is
✅ The correct answer is option B.
When the lift is moving upwards with some acceleration, the pressure exerted by a man is __________ proportional to its acceleration.
directly
inversely
✅ The correct answer is option A.