25. Water hammer is developed in a :
(A) Turbine (8) Penstock
(C) Draft tube (D) Surge tank

26. The time for half amount of radio active isotope to decay is known as :

(A) Half ‏تنا‎ (B) Radio active decay
(C) Rate of decay (D) Halving time
27. Acme thread has ——————— degree angle.
(ക) 45 degree (B) 60 degree
(C) 29 degree (D) 90 degree
28. Assteam expands in turbine :
(A) its specific volume increases (B) 10 pressure increases
) its boiling point increases (D) its temperature increases

29. pu" = constant, It is the relation for polytrophic process, if n = 0 then the process become :

(A) constant volume process (B) throttling process
(C) constant temperature process (D) constant pressure process

30. Which of the following enters to the super heater of a boiler?

(A) प्रण water (B) Super heated steam
(0) Wet steam (D) Cold water
‏21ھ‎ is reduced in turning operation.
(4) Length (B) Thickness
(C) Diameter and length (D) Diameter

32. A hydro electric power station is commonly constructed at :

(ಯ) Grass lands (B) Desert areas
(C) Swamps (D) Hilly areas
33. Morse test is conducted to find out the indicated power of :
(ಯ) multi cylinder engines (8) two stroke engines
(0) marine engines (D) low speed engine

34. “Intensity of pressure at a point in a fluid at rest is same in all directions”, this law is :
(ക Hydrostatic law (8) Pascal's law
(0) Archimedes law (D) Hagen-Poiseuille law

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