The two major functional components of an ecosystem are:
A.Energy flow and food chain
B.Mineral recycling and energy flow
C.Food chain and decomposers
D.Energy flow and decomposers
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The fluctuation of engine speed during a cycle depends upon:
A.Mass of flywheel
B.Mass of crankshaft
C.Speed of flywheel
D.Governor speed
With regard to nutrition Erysiphe is:
A.Ectoparasite
B.Endoparasite
C.None of the above
D.Predator
The connecting rod of an engine connects the crankshaft with:
A.Cylinder head
B.Piston
C.Piston pin
D.Cylinder liner
Bacterial cell surrounded by flagella is called:
A.Monotrichous
B.Lophotrichous
C.Amphitrichous
D.Peritrichous
Junker’s calorimeter is used for determining the calorific value of:
A.Liquid fuels
B.Solid fuels
C.Gaseous fuels
D.None of these
Lubrication oils are rated by:
A.Gravity
B.Visocsity
C.Density
D.All are correct
The calorific value of diesel oil is:
A.9400 Kcal/litre
B.10,000 Kcal/litre
C.11,000 Kcal/litre
D.12,000 Kcal/litre
Wilting of plant results from excessive:
A.Absorption
B.Photosynthesis
C.Respiration
D.Transpiration
Indicate, which represent the analogous group:
A.Wings of butterfly and birds
B.Fore leg of horse and arm of a man
C.Fore wings of moth and fins of fishes
D.Hind wings of butterfly and legs of birds
