manometric efficiency
mechanical efficiency
overall efficiency
volumetric efficiency
✅ The correct answer is option D.
Mechanical Engineering MCQs
A resultant force is a single force which produces the same effect as produced by all the given forces acting on a body.
TRUE
FALSE
✅ The correct answer is option A.
The blank diameter used in thread rolling will be
equal to minor diameter of the thread
equal to pitch diameter of the thread
a little larger than the minor diameter of the thread
a little larger than the pitch diameter of the thread
✅ The correct answer is option C.
A transmission shaft includes
counter shaft
line shaft
over head shaft
all of these
✅ The correct answer is option D.
The power produced by the reaction turbine is __________ to the head of water.
directly proportional
inversely proportional
✅ The correct answer is option A.
Which of the following statement is wrong ?
The factor of evaporation for all boilers is always greater than unity.
The amount of water evaporated in kg per kg of fuel burnt is called equivalent evaporation from and at 100° C.
The ratio of heat actually used in producing the steam to the heat liberated in the furnace is called boiler efficiency.
none of the above
✅ The correct answer is option D.
A column is known as a long column if the slenderness ratio is
40
50
70
100
✅ The correct answer is option D.
Discharge of a centrifugal pump is
directly proportional to diameter of its impeller
inversely proportional to diameter of its impeller
directly proportional to (diameter)2 of its impeller
inversely proportional to (diameter)2 of its impeller
✅ The correct answer is option C.
Moment of inertia of a hollow circular section, as shown in the below figure about X-axis, is
✅ The correct answer is option D.
Thread rolling is restricted to
ferrous materials
ductile materials
hard materials
none of these
✅ The correct answer is option B.