Top 550+ Solved Thermal Engineering 2 MCQ Questions Answer
Q. Which of these can be used as a fluid in the bottoming fluid?
a. mercury
b. ammonia
c. calcium
d. sodium
Q. In case of Sodium-mercury-steam cycle, which is the topping fluid?
a. mercury
b. steam
c. sodium
d. cannot say
Q. In case of mercury-steam-sulphur dioxide cycle, which is the bottoming fluid?
a. mercury
b. steam
c. sulphur dioxide
d. cannot say
Q. The total loss in a tertiary cycle is?
a. sum of losses in the individual cycles
b. product of losses in the individual cycles
c. sum of products of individual losses
d. none of the mentioned
Q. Room air conditioners and packaged units are examples of _________
a. direct expansion systems
b. indirect expansion systems
c. chilled water systems
d. indirect contraction systems
Q. The process of extraction of the certain required amount of water from air is known as ___________
a. heating
b. cooling
c. humidification
d. dehumidification
Q. The reciprocal of thermal conductivity is known as __________
a. thermal conductance
b. surface resistance
c. specific conductance
d. thermal resistivity
Q. Condensers and evaporators together form a ____________
a. heat exchanger
b. refrigeration system
c. thermocouple
d. heating system
Q. In traditional Refrigerators in home appliances, what is the type of condenser used?
a. natural convection type
b. forced convection type
c. furnace type
d. rotary condensers
Q. In traditional Air conditioners in home appliances, what is the type of condenser used?
a. natural convection type
b. forced convection type
c. flash type
d. rotary condensers
Q. In evaporative condensers, ___________ used to extract heat from the condensing refrigerant.
a. air is
b. both air and water are
c. water is
d. either air or water is
Q. Evaporative condensers combine the features of a _____________ in a single unit.
a. cooling tower and water-cooled condenser
b. falling tower and water-cooled condenser
c. cooling tower and air condenser
d. rising film tower and water-cooled condenser
Q. Evaporative condensers are used in places where water is _________
a. scarce
b. plenty
c. moderately available
d. sufficient
Q. What is the meaning of heat rejection ratio (HRR) of a condenser?
a. ratio of heat rejected to the heat absorbed
b. ratio of heat absorbed to the heat rejected
c. ratio of heat required to the heat lost
d. ratio of heat wasted in a cycle to the heat absorbed