Model Questions for SSC CGL (SET-103) GENERAL AWARENESS

1. A concave lens always forms an image which is

(a) real and erect
(b) virtual and erect
(c) real and inverted
(d) virtual and inverted

2. A vitamin requires cobalt for its activity. The vitamin is

(a) VitaminB12
(b) Vitamin D
(c) VitaminB2
(d) Vitamin A

3. One of the constituents of tear gas is

(a) Ethane
(b) Ethanol
(c) Ether
(d) Chloropicrin

4. The modulus of rigidity is the ratio of

(a) longitudinal stress to longitudinal strain
(b) Volume stress to volume strain
(c) shearing stress to shearing strain
(d) tensile stress to tensile strain

5. The propagation of sound waves in a gas involves

(a) adiabatic compression and rarefaction
(b) isothermal compression and rarefaction
(c) isochoric compression and rarefaction
(d) isobaric compression and rarefaction