Which one of the following is independent of fuel constituents, combustion chamber design, temperature and pressure of compressed charge
A.Pinking
B.Pre-ignition
C.Knocking
D.none of the above
Category: Mechanical Engineering Mcqs
A 90 HP tractor dozer working on a dozing distance of about 60 m will give an output of about
A.4 cu-m/hr
B.40 cu-m/hr
C.400 cu-m/hr
D.4000 cu-m/hr
Addition of ethylene glycol into the water causes a depression in
A.freezing point
B.pour point
C.boiling point
D.none of the above
Balometers are used for the measurement of
A.Optical input
B.Pneumatic input
C.Thermal radiation
D.Electrical input
E.Temperature input
A designer would attempt to avoid bosses and pads in the casting because
A.it is difficult to incorporate in pattern
B.mould formation is difficult in pressence of boss
C.projections such as bosses and pads can not merge with thinner sections
D.they being thicker will take longer to solidify and hence will suffer from residual stresses and coarse grains
The effect of electric shock on human body depends on
A.Voltage
B.Current
C.Duration of contact
D.All of the above
E.None of the above
Flight conveyors are mainly used for conveying
A.grains
B.coal
C.bauxite
D.iron ore
Which of the following is an indirect pressure measuring device?
A.Bourdon tube
B.Flat diaphragm
C.Ionisation gauge
D.Manometer
E.Capsules
The falling drops of rain acquire spherical shape on account of
A.Viscosity
B.Surface tension
C.Compressibility
D.Buoyancy
E.Vapour pressure
The resultant upward pressure of a fluid on a floating body is equal to the wirght of the fluid displaced by the body. This is known as
A.Pascals law
B.Reynolds principle
C.Archimedes principle
D.Schmidt’s hypothesis
E.Bernoulli’s theorem
