A. drooping characteristic
B. lihear characterisstic
C. rising characteristic
D. flat characteristic
E. none of the above
Related Mcqs:
- The safety valve on boiler drum compared to safety valve on super heater is set at ________________?
A. same value
B. higher value
C. lower value
D. lower/higher depending on steam flow
E. unpredicatble - The steam temperature with increase in load in case of a boiler fitted with radiation super heater________________?
A. increases
B. decreases
C. remains unaffected
D. first increases and then decreases
E. unpredictable - The critical activity has____________________?
A. maximum float
B. minimum float
C. zero float,
D. average float
E. none of these - Chilled cast iron has____________________?
A. no graphite
B. a very high percentage of graphite
C. a low percentage of graphite
D. graphite as its basic constituent of composition
E. none of the above is true - Nodular iron has____________________?
A. high maehinability
B. low melting point
C. high tensile strength
D. good fluidity
E. all of the above - The temperature of flue gases at air heater outlet should be__________________?
A. 100°C
B. above dew-point temperature of flue gases
C. below dew-point temperature of flue gases
D. less than wet bulb temperature of flue gases
E. above wet bulb temperature of flue gases - With increase in load, convection superheater has_______________________?
A. drooping characteristic
B. linear characterisstic
C. rising characteristic
D. flat characteristic
C. none of the above - The specific fuel consumption for a petrol engine first decreases with increase in fuel air ratio and then increases with further increase in fuel air ratio. The minimum value occurs in the range of__________________?
A. lean mixture
B. chemically correct mixture
C. rich mixture
D. unpredictable
E. none of the above - Auto-ignition reaction time for petrol engine first decreases with increase in fuel air ratio, reaches a minimum value and then increases with subsequent increase in fuel air ratio. The minimum value occurs in the region of________________?
A. Lean mixture
B. Chemically correct fuel air ratio
C. Rich mixture
D. Unpredictable - Super conduction by metals is observed in the temperature range of_________________?
A. below 10°K
B. above 100°K
C. around 0°C
D. around 100°C
E. above 1000°C
