their algebraic sum is zero
their lines of action are at equal distances
the algebraic sum of their moments about any point in their plane is zero
the algebraic sum of t
✅ The correct answer is option C.
Engineering MCQs
The centre of percussion is below the centre of gravity of the body and is at a distance equal to
h/kG
h2/kG
kG2/h
h x kG
✅ The correct answer is option C.
The two rolls in a two high rolling mills are of __________ size.
equal
different
✅ The correct answer is option A.
A gas engine has a swept volume of 300 cm3 and clearance volume of 25 cm3. Its volumetric efficiency is 0.88 and mechanical efficiency is 0.90. The volume of the mixture taken in per stroke is
248 cm3
252 cm3
264 cm3
286 cm3
✅ The correct answer is option C.
Surface tension force is the product of surface tension per unit length and cross-sectional area of flow.
Correct
Incorrect
✅ The correct answer is option B.
Whenever some external system of forces acts on a body, it undergoes some deformation. As the body undergoes some deformation, it sets up some resistance to the deformation. This resistance per unit area to deformation, is called
strain
stress
pressure
modulus of elasticity
✅ The correct answer is option B.
The action of a centrifugal pump is that of a reversed reaction turbine.
Correct
Incorrect
✅ The correct answer is option A.
The problems caused by the wheel imbalance are
hard steering and hard ride
poor acceleration and hard steering
steering wheel vibrations and uneven tyre wear
poor acceleration and
✅ The correct answer is option C.
When one plate overlaps the other and the two plates are riveted together with two rows of rivets, the joint is known as
single riveted lap joint
double riveted lap joint
double riveted single cover butt joint
double riveted double
✅ The correct answer is option B.
The scavenging efficiency of a four stroke cycle diesel engine is
below 50%
between 50 and 85%
between 85 and 95%
between 95 and 100%
✅ The correct answer is option D.