0°C
40°C
60°C
100°C
✅ The correct answer is option D.
Mechanical Engineering MCQs
A closed cycle gas turbine consists of a
compressor
heating chamber
cooling chamber
all of these
✅ The correct answer is option D.
Scheduling
prescribes the sequence of operations to be followed
determines the programme for the operations
is concerned with starting of processes
regulates the progress
✅ The correct answer is option B.
The cutting force in up milling __________ per tooth movement of the cutter.
is zero
is maximum
decreases from maximum to zero
increases from zero to
✅ The correct answer is option D.
Larger than 15° side cutting edge angle
increases tool life
decreases tool life
produces chipping and decreases tool life
results in excessive s
✅ The correct answer is option C.
In the below figure, PC is the connecting rod and OC is the crank making an angle θ with the line of stroke PO and rotates with uniform angular velocity at ω rad/s. The Klien’s acceleration diagram for determining the acceleration of the piston P is shown by quadrilateral C Q NO. The acceleration of the piston P with respect to the crankpin C is given by
ω2 x NO
ω2 x CO
ω2 x CN
ω2 x QN
✅ The correct answer is option C.
The fuel used in a blast furnace is
coal
coke
wood
producer gas
✅ The correct answer is option B.
The specific gravity has no units.
Agree
Disagree
✅ The correct answer is option A.
A Pelton wheel working under a constant head and discharge, has maximum efficiency when the speed ratio is
0.26
0.36
0, 46
0.56
✅ The correct answer is option C.
The cracks in helical springs used in railway carriages usually start on the inner side of the coil because of the fact that
it is subjected to a higher stress than the outer side
it is subjected to a higher cyclic loading than the outer side
it is more stretched than the outer side during the manufacturing process
it has a lower curvatu
✅ The correct answer is option B.