Correct
Incorrect
✅ The correct answer is option B.
Mechanical Engineering MCQs
The reflectivity of a reflector is defined as the fraction of neutrons entering the reflector which are returned to the core.
Agree
Disagree
✅ The correct answer is option A.
If the magnitude of direct stress and bending stress is equal, then there will be zero stress at one of the extreme ends of a column.
Agree
Disagree
✅ The correct answer is option A.
The mass of water vapour present in __________ is called absolute humidity.
1 m3 of wetair
1 m3 of dry air
1 kg of wet air
1 kg of dry air
✅ The correct answer is option B.
According to Indian standard specifications, 100 H6/g 5 means that.
basic size is 100 mm
actual size is 100 mm
difference between the actual size and basic size is 100 mm
none of the above
✅ The correct answer is option A.
The bell crank levers used in railway signalling arrangement are of third type levers.
TRUE
FALSE
✅ The correct answer is option B.
In a domestic vapour compression refrigerator, the refrigerant commonly used is
CO2
Ammonia
R-12
all of these
✅ The correct answer is option C.
Micromotion study is
analysis of one stage of motion chart
motion study, when seen on a time chart
subdivision of an operation into therbligs and their analysis
enlarged view of motio
✅ The correct answer is option C.
The refrigerant carbon dioxide is not widely used because of its __________ power require ments per tonne of refrigeration and high operating pressures.
low
high
✅ The correct answer is option B.
In electric resistance welding, pressure applied varies from
1 to 5 MPa
5 to 10 MPa
10 to 25 MPa
25 to 55 MPa
✅ The correct answer is option D.