CHILLER SYSTEM - Practice Mode

1) Which tool is used to straighten the deformed fins of air cooled condenser?

Blower Fin comb Wire brush Brass brush

Correct Answer: Fin comb

2) Which refrigerant spreads the pungent odour if it leaks from ice plant system?

H<sub>2</sub>O SO<sub>2</sub> CO<sub>2</sub> NH<sub>3</sub>

Correct Answer: NH<sub>3</sub>

3) Which device ensures correct flow of chilled water supply in chiller AC plant?

Sight glass Leaf switch Level master control Pressure relief valve

Correct Answer: Leaf switch

4) Which safety control stops the compressor motor if there is leakage of refrigerant?

LP cut out HP cut out Thermostat Oil pressure cut out

Correct Answer: LP cut out

Explanation:

Maroon is the colour painted on the acetylene gas cylinders.

5) How the pH of water is checked for acidic or alkaline?

By hydro meter By hygro meter Using litmus paper Pressure relief valve

Correct Answer: Using litmus paper

Explanation:

Black is the colour of oxygen hose pipe in oxy - acetylene welding set.

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