Which of the following defect may occur due to improper design of gating system?
A.Cold shuts
B.Rough surfaces
C.Misruns
D.any of the above
Category: Mechanical Engineering Mcqs
Mycotoxins are poisonous chemicals produced by
A.bacteria
B.virus
C.molds
D.algae
A square type engine
A.Has geometrical shape as square
B.Has two cylinders horizontal and two cylinders vertical
C.Has operating speed as 64, 81, 100, 121, 144, 169, 196 rpm or the like
D.Has cylinder bore equal to stroke length
E.Has four cylinders with phase shift of 90? between any two consecutive cylinders
The motions of crane-hoisting, trolley traversing and bridging may be powered by
A.electric motors
B.air motors
C.hydraulic units
D.Any of the above
The fuel consumption of a diesel engine per BHP per hour is nearly
A.100 cc
B.200 cc
C.300 cc
D.400 cc
The hardness of martensite in quenched plain carbon steels reaches almost a saturation value of carbon of about
A.0.20%
B.0.40%
C.0.60%
D.1.40%
E.None of the above
In case of tractors the springs provided on rear wheel are
A.Leaf type
B.Helical
C.ombination of helical and leaft spring
D.Depend on the design
E.No spring is provided
Free air is air at
A.Atmospheric conditions at any specific location
B.1 kg/cm2 and atmospheric temperature
C.1 kg/cm2 and 0?C
D.1 kg/cm2 and 20?C
E.1 kg/cm2 and 27?C
Stainless steel Bourdon tube pressure gauge joints are usually
A.Soldered
B.Brazed
C.Welded
D.Screwed
E.Adhesive jointed
