Backward curved blades has poor efficiency
Backward curved blades lead to stable performance
Forward curved blades has higher efficiency
Forward curved blades
✅ The correct answer is option D.
Engineering MCQs
The water tube boilers produce steam at a __________ pressure than that of fire tube boilers.
lower
higher
✅ The correct answer is option B.
The unit of strain is
N-mm
N/mm
mm
no unit
✅ The correct answer is option D.
A flow in which each liquid particle does not have a definite path and the paths of individual particles also cross each other, is called turbulent flow.
Agree
Disagree
✅ The correct answer is option A.
The power absorbed (in watts) in overcoming the viscous resistance of a footstep bearing is
✅ The correct answer is option B.
A column with maximum equivalent length has
both ends hinged
both ends fixed
one end fixed and the other end hinged
one end fixed and the
✅ The correct answer is option D.
The time taken by a trained worker to perform an operation, while working a steady pace, is known as
standard time
normal time
representative time
none of these
✅ The correct answer is option A.
The electron beam welding can be carried out in
open air
a shielded gas environment
vacuum
a pressurised inert ga
✅ The correct answer is option C.
Which of the following is a reversible non-flow process?
Isochoric process
Isobaric process
Hyperbolic process
all of these
✅ The correct answer is option D.
The virtual or equivalent eccentric for the Meyer’s expansion valve is defined as an eccentric having such a length and angle of advance that will cause cut-off to take place at the same position, as is caused by the combined effect of main eccentric and expansion eccentric.
Right
Wrong
✅ The correct answer is option A.