N-m/s2
N-s/m2
poise
stoke
✅ The correct answer is option B.
Mechanical Engineering MCQs
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 a screw jack, the effort required to lift the load W is given by (where α = Helix angle, and φ = Angle of friction)
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.
The tool life in case of a grinding wheel is the time
between two successive regrinds of the wheel
taken for the wheel to be balanced
taken between two successive wheel dressings
taken for a wear of 1
✅ The correct answer is option C.
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.
In low carbon steels, presence of small quantities of sulphur improves
weldability
formability
machinability
hardenability
✅ The correct answer is option C.
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.