A. the average service rate Hess than the average arrival rate
B. output rate is linearly proportional to input
C. output rate is constant and the input varies in a random manner
D. all of the above
E. none of the above
Related Mcqs:
- In order to prevent formation of carbon on the injector, the temperature of nozzle tip should be__________________?
A. less than 100°C
B. between 100-250°C
C. between 250 – 300°C
D. between 400 – 500°C
E. between 500 – 1000°C - Stress relaxation is- the phenomenon ___________________?
A. in which parts are not loaded
B. in which stress remains constant on in-creasing load
C. in which deformation tends to loosen the joint and produces a stress reduced
D. stress reduces on increasing load
E. none of the above - The composition of silver solder is ___________________?
A. silver, copper, zinc
B. silver, tin, nickel
C. silver, lead, zinc
D. silver, copper, aluminium
E. silver, lead, tin - If the surface of liquid is convex, men ___________________?
A. cohesion pressure is negligible
B. cohesion pressure is decreased
C. cohesion pressure is increased
D. there is no cohesion pressure
E. none of the above - Uniform flow occurs when ___________________?
A. the flow is steady
B. the flow is streamline
C. size and shape of the cross section in a particular length remain constant
D. size and cross section change uniformly along length
E. flow occurs at constant fate - For manometer, a better liquid combination is one having ___________________?
A. higher surface tension
B. lower surface tension
C. surface tension is no criterion
D. high density and viscosity
E. low density and viscosity - If no resistance is encountered by displacement, such a substance is known as ___________________?
A. fluid
B. water
C. gas
D. perfect solid
E. ideal fluid - A fusible plug is fitted in small boilers in order to ___________________?
A. avoid excessive build up of pressure
B. avoid explosion
C. extinguish fire if water level in the boiler falls below alarming limit
D. control steam dome
E. remove molten aslj - Heating value of fuel used is as on fired basis. If it is reported for dry or moisture free fuel, then latter should be multiplied by the following factor to correct for as fired value ___________________?
A. (1- moisture content)
B. (1 + moisture content)
C. 1 + moisture content
D. 1 – moisture content - Which is not correct statement about effect of sulphur in fuel ___________________?
A. it has heating value
B. it helps in electrostatic precipitation of ash in flue-gases
C. it leads to corrosion of air heaters, ducting, etc. if flue gas exit temperature is low
D. it erodes furnace walls
E. none of the above
