33,

34,

35,

36,

37.

38,

39,

40,

41,

42,

A low side float valve maintains the level of refrigerant in :

(A) Condenser (B) Evaporator

(9) Baudelot cooler (D) Flooded evaporator

Boiling point of R 600a is :

(മ) -33% छ) -12°C © -77°C (D) —40°C

RF remote control with a range of roughly :
(^) 100 feet (B) 40 feet (ಲ) 20166 (D) 10 feet

Bush bearings are usually made of :
(ಹ) Nickel (8) Bronze (C) ‏كاك‎ (D) Platinum

The sediments which form as a coating on cooling coil will reduce the
(ಹ) Temperature (8) Heat transfer efficiency
(C) Suction pressure (D) Heat load on evaporator

The extinguisher used for electric fire is :
(5) Carbon tetrachloride extinguisher
(B) Carbon dioxide extinguisher

(C) Soda foam extinguisher

(D) Methyl bromide extinguisher

Cutting of sheet metal by two parallel cutting edge moving in opposite direction is
termed as :

(A) Drawing (B) Swaging (€) Shearing (D) ண்டி

Water is used as a refrigerant :
(ಹ) Vapour absorption cycle (8) Vapour compression cycle
(C) Steam jet refrigeration (D) Air cycle

The upcoming alternative refrigerant to be used in car air conditioning system is
(A) R134a (B) R 1234ze (© R1234yf (D) R764

Comfort cooling ducts are commonly fabricated out of :
കു യ (൫ ക്ജ്ഞ്ണ്മ്ന (9) 111 (D) All of these

7 067/2018
{P.T.O}