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
Related Mcqs:
- In a diesel engine, injection pressure developed by injector is of the order of______________?
A. 10 kg/cm2
B. 100 kg/cm2
C. 500 kg/cm2
D. 1400 kg/cm2 - The function of injector used in small steam plants is to________________?
A. create vacuum in furnace
B. create vacuum at turbine exhaust
C. pump feed water
D. dose chemicals in feed water
E. control steam temperature by injecting water - The function of injector used in small capacity boilers is to____________________?
A. create vacuum
B. inject chemical solution in feed pump
C. pump water, similar to boiler feed pump
D. add make up water in the system
E. none of the above - In order to prevent knock in the S.I. engines, the charge away from the spark plug should have___________________?
A. low temperature
B. low density
C. long ignition delay
D. rich mixture
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 - The percentage of carbon in low carbon steel is__________________?
A. 0.05%
B. 0.15%
C. 0.3%
D. 0.5%
E. 0.7%. - High carbon steel carries carbon %age c_________________?
A. 0.1 to 0.3%
B. 0.3 to 0.6%
C. 0.6 to 0.8%
D. 0.8 to 1.5%
E. 1.5 to 2.5%. - The knocking in diesel engines for given fuel, will be__________________?
A. enhanced by increasing compression ratio
B. enhanced by decreasing compression ratio
C. unaflected by compression ratio
D. first enhanced by increasig compression ratio upto a limit beyond which it will be suppressed
E. dependent on other factors - Drop forging dies contain carbon of the order of_________________?
A. 0.1 to 0.2%
B. 0.25 to 0.5%
C. 0.6 to 0.7%
D. 0.7 to 0.9%
E. 1.0 to 1.2%. - Heavy duty leaf and coil spring* contain carbon of the following order ________________?
A. 0.2%
B. 0.5%
C. 0.8%
D. 1.0%
E. 1.5%.
