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.Management Sciences
Category: Mechanical Engineering Mcqs
A tap bolt_____________________?
A. has a head on one end and a nut fitted to the other
B. has head at one end and other end fits into a tapped hole in the other part o be joined
C. has both the ends threaded
D. has pointed threads
E. requires locking devices
For maximum power generation, the air fuel ratio for a petrol engine for vehicles, is of the order of _________________?
A. 9 : 1
B. 12 : 1
C. 15 : 1
D. 18 : 1
E. 20: 1
Size of boiler tubes is specified by___________________?
A. mean diameter and thickness
B. inside diameter and thickness
C. outside diameter and thickness
D. outside diameter and inside diameter
E. outside diameter alone
If three forces acting in one plane upon a rigid body, keep it in equilibrium, then they must either___________________?
A. meet in a point
B. be all parallel
C. at least two of them must meet
D. all the above are correct
E. none of the above
Pick up the correct statement about relationship between various floats______________________?
A. free float = total float
B. independent float = total float
C. independent float > free float
D. free float > total float
E. independent float < free float
An important property of high silicon (12 – 18%) cast iron is the high__________________?
A. tenacity
B. brittleness
C. plasticity
D. corrosion resistance
E. hardness
The C.G. of a plane lamina will not be at its geometrical centre in the case of a__________________?
A. right angled triangle
B. equilateral triangle
C. square
D. circle
E. rectangle
Work done in a free expansion process is___________________?
A. + ve
B. -ve
C. zero
D. maximum
E. minimum
The fire tubes in, a Coarran and Scotish marine boiler are_________________?
A. horizontal
B. vertical
C. inclined
D. both horizontal and vertical
E. horizontal and inclined
Absorptivity of a body will be equal to its emissivity___________________?
A. at all temperatures
B. at one particular temperature
C. when system is under thermal equi-librium
D. at critical temperature
E. for a polished body
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