861: Vinegar is an aqueous solution of
(a) oxalic acid
(b) citric acid
(c) acetic acid
(d) hydrochloric acid
862: 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.
863: Which of the following presents the most significant features of Indus Valley Civilisation?
(a) Buildings with perfect arches
(b) Use of burnt mud bricks
(c) Use of sun dried mud bricks
(d) None of these
864: Which of the following statements is incorrect?
(a) Chandragupta Vikramaditya killed the Saka
(b) Samudragupta is known as Indian Napolean
(c) Skandagupta defeated Huns
(d) Kumaragupta restored the embankment of Sundarsana Lake
865: Where are the Balearic Islands located?
(a) Baltic Sea
(b) Black Sea
(c) Mediterranean Sea
(d) North Sea