helix angle
pressure angle
pitch lead angle
none of these
✅ The correct answer is option A.
Mechanical Engineering MCQs
The polytropic index (n) is given by
✅ The correct answer is option B.
For large tonnage (more than 200 TR) air-conditioning applications, the compressor recommended is
reciprocating
rotating
centrifugal
screw
✅ The correct answer is option C.
When compared to the rod of the same diameter and material, a wire rope
is less flexible
has a much smaller load carrying capacity
does not provide much warning before failure
provides much greater
✅ The correct answer is option B.
The operation of lifts, rams and pumps make use of compressed air.
Yes
No
✅ The correct answer is option A.
In process layout
handling and back-tracking of materials is too much
production control is more difficult and costly
routing and scheduling is more difficult
all of the above
✅ The correct answer is option D.
The capillary tube, as an expansion device, is used in
domestic refrigerators
water coolers
room air conditioners
all of these
✅ The correct answer is option D.
The method of grinding used to produce internal cylindrical holes and tapers, is
internal cylindrical grinding
form grinding
external cylindrical grinding
surface grinding
✅ The correct answer is option A.
The Klein’s diagram is used when
crank has uniform angular velocity
crank has non-uniform angular velocity
crank has uniform angular accleration
crank has non-uniform
✅ The correct answer is option A.
Which of the following bearing is preferred for oscillating conditions?
Double row roller bearing
Taper roller bearing
Angular contact single row ball bearing
Needle roller bearing
✅ The correct answer is option D.