Anti-knock for compression ignition engines is
A.Amyl nitrate
B.Tetra ethyl lead
C.Trimethyl pentane
D.Hexadecane
E.Aromatics
Category: Engineeeing Mcqs
Which one of the following is not included in the combinations set?
A.A rule
B.Square
C.A centre head
D.A protector
E.Short rule
When the higher temperature is fixed, the COP of a refrigerating machine can be improved by
A.Operating the machine at higher speeds
B.Operating the machine at lower speeds
C.Raising the higher temperature
D.Lowering the higher temperature
E.None of the above
An automobile gear box has
A.Simple gear train
B.Compound gear train
C.Epicycle gear train
D.Compound epicyclic gear train
E.None of the above
While designing a warm and a worm wheel the sign should be governed by
A.Worm
B.Worm wheel
C.Any one of the two
D.Standards designs should be followed
E.None of the above
In which operation the horse power required to remove one cubic centimetre of material (soft steel) per minute under average conditions will be maximum
A.Turning
B.Shaping
C.Drilling
D.Milling
E.Grinding
A pyrheliometer is an instrument which measures
A.beam radiation
B.diffuse radiation
C.global radiation
D.duration of bright sunshine
Which of the following pipe will corrode easily?
A.Stainless steel pipe
B.Lead pipe
C.Copper pipe
D.ERW pipe
E.GI pipe
The angle between the cord and the centre line of the tread is called
A.tread angle
B.side wall angle
C.crown angle
D.none of the above
p-type silicon is formed by adding a minute amounts of elements with
A.three valence electrons
B.four valence electrons
C.five valence electrons
D.six valence electrons
