Multiple Choice Questions & Answers on APSC Geology Optional

31 Spire is present in the class of

1 Lamellibranchia

2 Brachiopoda

3 Cephalopoda

4 Gastropoda

View Answer

Answer: Gastropoda

32 ______________________has the features of both plants and animals.

1 Alveolina

2 Coral

3 Euglena

4 Foraminifera

View Answer

Answer: Euglena

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33 Gymnosperm is a plant which

1 exhibits no extinct varieties

2 bears flowers

3 does not produce seeds in cones

4 produces seeds in cones

View Answer

Answer: produces seeds in cones

34 The age of Baculites is

1 Cretaceous

2 Tertiary

3 Devonian

4 Silurian

View Answer

Answer: Cretaceous

35 Cranidium of trilobites is a combination of

1 glabella + free cheeks

2 glabella + fixed cheeks

3 glabella + genal angle

4 fixed cheeks + free cheeks

View Answer

Answer: glabella + fixed cheeks

36 The normal class of monoclinic system is of

1 galena type

2 gypsum type

3 zircon type

4 beryl type

View Answer

Answer: gypsum type

37 In hexagonal system, the twins are formed according to

1 Dauphine law

2 Carlsbad law

3 Pericline law

4 Manebach law

View Answer

Answer: Dauphine law

38 Which one of the following is not galena type of a mineral?

1 Garnet

2 Spinel

3 Fluorspar

4 Rutile

View Answer

Answer: Rutile

39 A crystal is a periodic arrangement of

1 atoms

2 molecules

3 ions

4 both atoms and molecules

View Answer

Answer: both atoms and molecules

40 The phenomenon of piezoelectricity is exhibited by those crystals that lacks a

1 symmetry axis

2 plane of symmetry

3 centre of symmetry

4 pseudosymmetry

View Answer

Answer: centre of symmetry

41 The Miller's symbol for parameters 1/2a:1/2b : c will be

1 2 0 1

2 1 1 2

3 0 1 2

4 2 2 1

View Answer

Answer: 2 2 1

42 ________________helps in determination of order of interference colour.

1 Gypsum plate

2 Quartz wedge

3 Mica plate

4 Sensitive tint

View Answer

Answer: Quartz wedge

43 Dichroism is restricted to the crystal system(s) of

1 isometric

2 triclinic and monoclinic

3 tetragonal and hexagonal

4 orthorhombic

View Answer

Answer: tetragonal and hexagonal

44 Find the odd one out of the following :

1 Flint

2 Chalcedony

3 Anorthite

4 Opal

View Answer

Answer: Anorthite

45 Find the odd one out of the following :

1 Grossular

2 Spessartite

3 Almandine

4 Lepidolite

View Answer

Answer: Lepidolite

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