1. The remote control is based on,
(A) Both A & B
(B) Magnetic
(C) Electronic
(D) None of These
2. The remote control has a transmitter, which transmits the
(A) Light Waves
(B) Infra-red waves
(C) Both A & B
(D) None of These
3. The receiver detects the infra-red waves and produce specific;
(A) None of These
(B) Light Signal
(C) Both A & B
(D) Electronic Signal
4. The remote control uses frequencies;
(A) None of These
(B) VHF Range
(C) Both A & B
(D) Infra-red range
5. The range of operation of remote control
(A) 15 to 20 meters
(B) 10 to 15 meters
(C) 20 to 30 meters
(D) None of These
6. Most of the remote control use IC to perform all the functions
(A) None of These
(B) Double
(C) No use any IC
(D) Single
7. The contacts of the keys of the remote control use;
(A) Copper material
(B) Carbon material
(C) Silver Material
(D) None of These