P = W tan(α – φ)
P = W tan(α + φ)
P = W tan(φ – α)
P = W cos(α + φ)
✅ The correct answer is option B.
Mechanical Engineering MCQs
In which of the following conditions, the idle CO percentage should be measured with the vehicle ?
Headlights and other electrical devices are switched off.
Headlights and other electrical devices are switched on.
Headlights and other lights are switched off.
Headlights are switche
✅ The correct answer is option A.
The buttress threads have low frictional resistance characteristic of the square threads and have the same strength of V-threads.
Yes
No
✅ The correct answer is option A.
Highest useful compression ratio (HUCR) is the highest compression ratio at which the
engine can run
engine gives maximum output
engine is most efficient
fuel can be used in a
✅ The correct answer is option D.
When the end of a tap is tapered for about three or four threads, it is known as a
taper tap
bottoming tap
second tap
none of these
✅ The correct answer is option C.
The ratio of the temperature rise of cooling water to the vacuum temperature minus inlet cooling water temperature is called
condenser efficiency
vacuum efficiency
nozzle efficiency
boiler efficiency
✅ The correct answer is option A.
In designing a sleeve coupling, outer diameter of the sleeve is taken as (where d = Diameter of the shaft)
d + 17 mm
2 d + 13 mm
2 d + 20 mm
3.5 d
✅ The correct answer is option B.