Naphthenes
A.are unsaturated cyclic compounds
B.are straight chain saturated compounds
C.are saturated cyclic compounds
D.and paraffins have the same general formula CnH2n+2
Category: Engineeeing Mcqs
The power factor of a 3 phase induction motor near full load is expected to be around
A.0.8 leading
B.0.8 lagging
C.0.5 lagging
D.0.5 leading
E.0.1 lagging
In the coupling rod mechanism of a locomotive each of the four pairs is a
A.sliding pair
B.Rolling pair
C.screw pair
D.Turning pair
In a nuclear explosion the energy is released in the form of
A.electrical energy
B.thermal energy
C.kinetic energy
D.potential energy
The steam engine used on steam locomotive is
A.condensing, variable speed type
B.condensing, constant speed type
C.non-condensing, variable speed type
D.non-condensing, constant speed type
Deuterium atom has
A.2 electrons in the outermost orbit
B.two protons in the nucleus
C.two neutrons in the nucleus
D.one proton and one neutron in the nucleus
Which one does not fit with rest in the following?
A.Reamer
B.Pipe cutter
C.Drill
D.Tapping
E.Jaw chuck
The necessary condition of equilibrium of a body is
A.The algebraic sum of horizontal components of all forces must be zero
B.The algebraic sum of vertical components of all forces must be zero
C.The algebraic sum of forces about a point must be zero
D.All the above
E.None of the above
Excessive application of synthetic fertilizers often causes shrivelling of the roots and wilting of the plant. This is because
A.the soil becomes too acidic
B.the soil becomes too alkaline
C.the osmotic pressure of the soil water becomes higher than that of the plant sap
D.the osmotic pressure of the soil water becomes less than that of the plant sap
Capacity of a cupola is expressed in terms of
A.Diameter of drum
B.Height of drum
C.Tons of castings it can produce in one charge
D.Tons of coke it can take in one charge
E.None of the above
