1241: Dry ice is:
(a) Solid carbon dioxide
(b) Ice dust
(c) Liquified nitrogen
(d) Liquified hydrogen
1242: Consider the following pairs :
Tribe : State
1. Limboo (Limbu) : Sikkim
2. Karbi : Himachal
3. Dongaria Kondh : Odisha
4. Bonda : Tamil Nadu
Which of the above pairs are correctly matched?
(a) 1 and 3 only
(b) 2 and 4 only
(c) 1, 3 and 4 only
(d) 1, 2, 3 and 4
1243: Two ladies simultaneously leave cities A and B connected by a straight road and travel towards each other. The first lady travels 2 km/hr faster than the second lady and reaches B one hour before the second lady reaches A. The two cities A and B are 24 km apart. How many kilometers does each lady travel in one hour?
(a) 5 km, 3 km
(b) 7 km, 5 km
(c) 8 km, 6 km
(d) 16 km, 14 km
1244: What does the term Dolby B, or Dolby C printed on tape recorders and other sound system refer to?
(a) Frequency modulated system
(b) Amplitude modulated system
(c) Noise reduction circuit
(d) Both DC and AC power can be used.
1245: Very small-time intervals are accurately measured by the:
(a) Pulsars
(b) White dwarfs
(c) Atomic clocks
(d) Quartz clocks