Specifications

150
QUESTIONS
Part - A
Choose the Correct Answer (1 Mark)
1. The diameter of the circle traced out by the extreme tips of the fan blades is called as
A) blade flange B) blade length C) blade sweep D) blade size
2. The type of motor used in electric fan is
A) capacitor start induction motor B) capacitor start and run induction motor
C) shaded pole induction motor D) universal motor
3. The fan used for venting out dusty foul air is called as
A) ceiling fan B) table fan C) pedestal fan D) exhaust fan
4. The protective screen in hair drier is to prevent hair drier from
A) over heating B) sucking outside things
C) electric shock D) sticking on hairs.
5. If there is open circuit in heating element of the hair drier,
A) the unit will not produce heat but motor will run.
B) the unit will produce heat but motor wont run
C) motor wont run and hence no heat is produced
D) motor will run but heating coil will burn
Part - B
Answer the following questions in one or two words (1 Mark)
1. State the function of electric fan.
2. What type of capacitor is used in electric ceiling and table fan?
3. The four blade fan gives more air circulation as compared to three blade fans. Say TRUE
or FALSE.
4. What will happen if there is open or short in capacitor used in electric fan?
5. What are the two basic parts of hair drier?
6. What safety part makes it difficult for other objects down the barrel of the hair dryer?