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.Management Sciences
Category: Mechanical Engineering Mcqs
In order to increase sensitivity of U-tube manometer, one leg is usually inclined by angle 9. Sensitivity of inclined tube to sensitivity of U-tube is equal to________________?
A. sin 9
B. sin 9
C. cas 9
D. cos 9
E. tan 9
The elastic stress strain behaviour of rubber is_____________________?
A. linear
B. non-linear
C. plastic
D. no fixed relationship
E. unpredictable behaviour
The ratio of heat utilised to produce steam and the heat liberated in furnace is known as___________________?
A. boiler effectiveness
B. boiler evaporative capacity
C. factor of evaporation
D. equivalent evaporation
E. boiler efficiency
Which place in hydraulic turbine is most susceptible for cavitation __________________?
A. inlet of draft rube
B. blade inlet
C. guide blade
D. penstock
E. draft tube exit
Fire tube boilers are those in which__________________?
A. flue gases pass through tubes and water around it
B. water passes through the tubes and flue gases around it
C. forced circulation takes place
D. tubes are laid vertically
E. none of the above
The overall efficiency of thermal power plant is________________?
A. boiler efficiency, turhine efficiecny, generator efficiency
B. all the three above plus gas cycle efficiency
C. carnot cycle efficiency
D. regenerative cycle efficiency
E. rankine cycle efficiency
Depending on the radiating properties, a body will be white when_________________?
A. p = 0, x = 0 and a = 1
B. p=l,T = 0anda = 0
C. p = 0, x = 1 and a = 0
D. x = 0, a + p = 1
E. a = 0, x + p = 1.
where a = absorptivity, p = reflectivity, x = transmissivity
Blast furnace produces following by reduction of iron ore_______________?
A. cast iron
B. pig iron
C. wrought iron
D. malleable iron
E. white iron
The type of pair formed by two elements which are so connected that one is constrained to turn or revolve about a fixed axis of another element is known as__________________?
A. turning pair
B. rolling pair
C. sliding pair
D. spherical pair
E. lower pair
Taper usually provided on cotter is_________________?
A. 1 in 5
B. 1 in 10
C. 1 in 24
D. 1 in 40
E. 1 in 50
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