Drop forging dies contain carbon of the order of_________________?

Related Mcqs:

1. Taps, dies and drills contain carbon________________?

   A. below 0.5%
   B. below 1%
   C. above 1%
   D. above 2.2%
   E. nil

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%.

3. Cold rolled steel sheets contain carbon of the following order___________________?

   A. 0.1%
   B. 0.2%
   C. 0.4%
   D. 0.6%
   E. 0.8%

4. Large forgings, crank shafts, axles normally contain carbon up to________________?

   A. 0.05 to 0.20%
   B. 0.20 to 0.45%
   C. 0.45 to 0.55%
   D. 0.55 to 1.0%
   E. 1.0 to 1.2%.

5. The percentage of carbon in low carbon steel is__________________?

   A. 0.05%
   B. 0.15%
   C. 0.3%
   D. 0.5%
   E. 0.7%.

6. 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%.

7. The efficiency of I.C. engines normally is of the order of_________________?

   A. 15-20%
   B. 20-25%
   C. 25-30%
   D. 30-35%
   E. 35-50%

8. The thermal efficiency of a diesel engine is of the order of_________________?

   A. 92%
   B. 68%
   C. 52%
   D. 34%
   E. 25%.

9. 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

10. Which of the following alloys does not contain tin_________________?

    A. white metal
    B. solder admiralty
    C. fusible metal
    D. phosphor bronze
    E. gun metal