TRUE
FALSE
✅ The correct answer is option A.
Mechanical Engineering MCQs
If the value of coefficient of discharge increases, the discharge through the orifice decreases.
TRUE
FALSE
✅ The correct answer is option B.
Venturimeter is used to
measure the velocity of a flowing liquid
measure the pressure of a flowing liquid
measure the discharge of liquid flowing in a pipe
measure the pressure d
✅ The correct answer is option C.
The static tooth load should be __________ the dynamic load.
equal to
less than
greater than
✅ The correct answer is option C.
The velocity ratio for the first system of pulleys is(where n is the number of pulleys.)
n
n2
2n
2n – 1
✅ The correct answer is option C.
A fixed beam is one which is fixed at __________ of its ends.
one
both
✅ The correct answer is option B.
A definite area or a space where some thermodynamic process takes place is known as
thermodynamic system
thermodynamic cycle
thermodynamic process
thermodynamic law
✅ The correct answer is option A.
The pull required to tear off the plate per pitch length is (where p = Pitch of rivets, t = Thickness of plates, and σt, τ and σc = Permissible tensile, shearing and crushing stresses respectively)
(p – 2d)t x σc
(p – d)t x τ
(p – d)t x σt
(2p – d)t x σt
✅ The correct answer is option C.
The shear force at the centre of a simply supported beam with a gradually varying load from zero at both ends to w per metre at the centre, is
zero
wl/4
wl/2
wl2/2
✅ The correct answer is option A.