Category: Mechanical Engineering Mcqs
Which of the following is not the unit of energy_________________?
A. kg m
B. kcal
C. wattr
D. watt hours
E. kg m x (m/sec)2
The theoretically correct mixture of air and petrol is approximately ________________?
A. 0.334027778
B. 0.500694444
C. 0.625694444
D. 0.834027778
Which of the following can be regarded as gas so that gas laws could be applicable, within the commonly encountered temperature limits ?
A. 02, N2, steam, C02
B. Oz, N2, water vapour
C. S02, NH3, C02, moisture
D. 02, N2, H2, air
E. steam vapours, H2, C02
Aluminium bronze contains__________________?
A. 94% aluminium, 4% copper and 0.5% Mn, Mg, Si and Fe
B. 92.5% aluminium, 4% copper, 2% nickel, and 1.5% Mg
C. 10% aluminium and 90% copper
D. 90% magnesium and 9% aluminium with some copper
E. 10% aluminium and 90% tin
The sense of Corioli’s component is such that it_________________?
A. leads the sliding velocity vector by 90°
B. lags the sliding velocity vector by 90°
C. is along the sliding velocity vector
D. leads the sliding velocity vector by 180°
E. none of the above
In triggering fission, the following types of neutrons are desirable_________________?
A. fast moving
B. slow moving
C. critical neutrons
D. neutrons at rest
E. none of the above
The efficiency of I.C. engines normally is of the order of_________________?
A. 15-20%
B. 20-25%
C. 25-30%
D. 30-35%
E. 35-50%
Guide angle as per the aerofoil theory of Kaplan turbine blade design is defined as the angle between_________________?
A. lift and resultant force
B. drag and resultant force
C. lift and tangential force
D. lift and drag
E. resultant force and tangential force
The fuel consumption in gas turbines is accounted for by___________________?
A. low.er heating value
B. higher heating value
C. heating value
D. higher calorific value
E. highest calorific value
Properties of substances like pressure, temperature and density, in thermodynamic coordinates are__________________?
A. path functions
B. point functions
C. cyclic functions
D. real functions
E. thermodynamic functions
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