Related Mcqs:

1. According to thermodynamic Fahrenheit scale, the fundamental interval between ice point to steam point is__________________?

   A. 180°
   B. 212°
   C. 32°
   D. 273°

2. ‘Ice point’ is designated on Fahrenheit temperature scale by__________________?

   A. 0°
   B. 32°
   C. 62°
   D. 212°

3. Boiler tube size is specified by its thickness and _____________________ diameter ?

   A. Outside
   B. Inside
   C. Mean
   D. None of these

4. Cementite is in the lamellar form in the _____________________ phase of steel ?

   A. Martenistic
   B. Bainitic
   C. Pearlitic
   D. Ferritic

5. To improve the machinability of steel, it is generally subjected to _____________________?

   A. Spheroidising
   B. Tempering
   C. Normalising
   D. Annealing

6. Water-tube boiler is the one, in which _____________________?

   A. Water passes through tubes and flue gases around it
   B. Tube carrying hot flue gases are immersed in a pool of water
   C. Tubes are placed in vertical position
   D. None of these
   Answer: Option A

7. Addition of _____________________ to steel does not impart hardness?

   A. Nickel
   B. Copper
   C. Chromium
   D. Silicon

8. _____________________ of grey cast iron produces white cast iron?

   A. Tempering
   B. Rapid heating
   C. Rapid cooling
   D. Slow cooling

9. A high pressure boiler generates steam at a pressure greater than _____________________ kg/cm2 ?

   A. 10
   B. 30
   C. 50
   D. 80

10. Photographic plates are coated with _____________________?

    A. Silver nitrate
    B. Silver halide
    C. Calcium silicate
    D. Metallic silver