4071: Consider the following statements in respect of a jet engine and a rocket:
1. A jet engine uses the surrounding air for its oxygen supply and so is unsuitable for motion in space.
2. A rocket carries its own supply of oxygen in the gas form, and fuel.
Which of the statements given above is/are correct ?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
4072: We can know about early Vedic period from:
(a) Archaeological excavations
(b) Contemporary cultures
(c) Rigveda
(d) Jatak Katha
4073: In Sanskrit plays written during the Gupta Period women and sudras speak
(a) Sanskrit
(b) Prakrit
(c) Pali
(d) Sauraseni
4074: Chambal river flows through the States of:
(a) Maharashtra, Gujarat and Madhya Pradesh
(b) Uttar Pradesh, Madhya Pradesh and Orissa
(c) Uttar Pradesh, Madhya Pradesh and Rajasthan
(d) Uttar Pradesh, Madhya Pradesh and Bihar
4075: The technique used to transmit audio signals in television broadcasts is
(a) Amplitude Modulation
(b) Frequency Modulation
(c) Pulse Code Modulation
(d) Time Division Multiplexing