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.Management Sciences
Category: Mechanical Engineering Mcqs
Deposition of carbon in petrol engine cylinder would result in increase of__________________?
A. clearance volume
B. swept volume
C. compression ratio
D. volumetric efficiency
E. mean effective pressure
Freezing temperature of petrol is usually__________________?
A. 0°C
B. – 10°C
C. 10°C
D. less than – 30°C
E. less than – 273°C
Tensile strength of a material is obtained by dividing the maximum load during the test by the_________________?
A. area at the time of fracture
B. original cross-sectional area
C. average of A. and B.
D. minimum area after fracture
E. none of the above.
Isotropic materials are those which have the same ____________________?
A. elastic properties in all directions
B. stresses induced in all directions
C. thermal properties in all directions
D. electric and magnetic properties in all directions
E. density throughout
The upper surface of a weir over which water flows is known is_____________________?
A. crest
B. nappe
C. sill
D. weir top
E. contracta
The reason for supercharging in any engine is to________________?
A. increase efficiency
B. increase power
C. reduce weight and bulk for a given out-put
D. effect fuel economy
E. none of the above
First law of thermodynamics___________________?
A. enables to determine change in internal energy of the system
B. does not help to predict whether the system will or not undergo a change
C. does not enable to determine change in entropy
D. provides relationship between heat, work and internal energy
E. all of the above
Acceptance sampling is widely used in________________?
A. batch production
B. job production
C. mass production
D. all of the above
E. none of the above
Detonation is caused by the following unstable compounds______________________?
A. peroxides, aldehydes and ketones
B. peroxides, aldehydes, oxides and sul-phides
C. aldehydes, oxides and ketones
D. ketones and sulphur compounds
E. none of the above
A beam is loaded as cantilever. If the load at the end is increased, the failure will occur ___________________?
A. in the middle
B. at the tip below the load
C. at the support
D. anywhere
E. none of the above
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