Question

1- In a system with outdoor air for ventilation:
(a) the load on coil is equal to the load on building
(b) the load on building is greater than the load on coil
(c) the load on building is less than the load on coil
(d) the Coil ADP is less than room ADP.
2- Evaporative cooling systems are:
(a) attractive for hot and humid climates
(b) attractive for hot and dry climates
(c) ideal for comfort applications
(d) ideal for several industrial applications
3- Selection of a suitable air conditioning system depends on:
(a) Type of the building
(b) Initial and running costs
(c) Reliability and serviceability
(d) All of the above
3- Match the following:
(a) A large precision laboratory a. Variable air volume system
(b) Perimeter zone of a building b. Constant air volume system
(c) Simultaneous cooling and heating c. Multiple zone, single duct system
(d) A large building complex d. Dual duct system
4- A dedicated outside air unit is used to pre-cool 2,500 CFM(1.18m3
/s) of outside air at
31 °C DB and 85% relative humidity to 15.5 °C DB, 14 °C WB. What is the quantity of
water removed by the coil in GPM?
(a) 0.29 ?PM
(b) 0.33 ?PM
(c) 2.9 ?PM
(d) 2.4 ?PM
5- Which of the following statements are TRUE?
(a) Compared to central systems, the initial cost of a unitary system is less
(b) Unitary systems can be installed quickly and their operation is relatively simple
(c) Unitary systems consume less power compared to central systems of same capacity
(d) Unitary systems are ideal for retrofitting applications
6-Unitary refrigerant based systems are:
(a) used for very small capacities only
(b) are available only for cooling applications
(c) couldnot factory assembled with a performance guaranteed by the manufacturer
(d) also called as package units.
7- State which of the following statements are TRUE?
(a) By improving the internal air movement, the energy consumption of the air
conditioning system can be reduced substantially
(b) By increasing air movement, the thermostat of the air conditioning system can be
set at a lower temperature

Answer 1