MCQOPTIONS
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MCQOPTIONS
This section includes 115 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Geology knowledge and support exam preparation. Choose a topic below to get started.
| 101. |
The phenomenon due to which a mineral shows rainbow colours is? |
| A. | Idiochromatism |
| B. | Allochromatism |
| C. | Iridescence |
| D. | Pseudochromatism |
| Answer» D. Pseudochromatism | |
| 102. |
The type of mineral showing variable colour is? |
| A. | Idiochromatic |
| B. | Allochromatic |
| C. | Iridescence |
| D. | Pseudochromatic |
| Answer» C. Iridescence | |
| 103. |
The type of mineral which shows a set of colours in succession is? |
| A. | Idiochromatic |
| B. | Pseudochromatic |
| C. | Allochromatic |
| D. | Iridescence |
| Answer» C. Allochromatic | |
| 104. |
Pseudochromatism occurs due to ___________ |
| A. | Reflection |
| B. | Transmittance |
| C. | Refraction |
| D. | Simultaneous reflection and refraction |
| Answer» E. | |
| 105. |
Allochromatic minerals may show more than two colours. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» B. False | |
| 106. |
Lustre doesn’t depend on? |
| A. | Refractive index mineral |
| B. | Absorption of mineral |
| C. | Transmittance of mineral |
| D. | Nature of reflecting surface |
| Answer» D. Nature of reflecting surface | |
| 107. |
Colour changing phenomenon which involves oxidation is ____________ |
| A. | Tarnish |
| B. | Iridescence |
| C. | Allochromatic |
| D. | Idiochromatic |
| Answer» B. Iridescence | |
| 108. |
High density, high refractive index is characteristic of ___________ |
| A. | Non-metallic minerals |
| B. | Metallic minerals |
| C. | Semi-metallic minerals |
| D. | Metalloid minerals |
| Answer» C. Semi-metallic minerals | |
| 109. |
Play of colours is not desirable. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» C. May be True or False | |
| 110. |
Lustre is dependent on colour. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» C. May be True or False | |
| 111. |
Mineralogy deals with? |
| A. | Individual properties of minerals |
| B. | Formation of minerals |
| C. | More of occurrence |
| D. | Properties, formation and occurrence |
| Answer» E. | |
| 112. |
Which of the following is not true about a mineral? |
| A. | Naturally occurring |
| B. | Inorganic substance |
| C. | Organic substance |
| D. | Definite chemical composition |
| Answer» D. Definite chemical composition | |
| 113. |
Metallic minerals belong to which category with respect to colour? |
| A. | Idiochromatic |
| B. | Pseudochromatic |
| C. | Allochromatic |
| D. | Iridescence |
| Answer» B. Pseudochromatic | |
| 114. |
Colour of a mineral depends upon its? |
| A. | Atomic structure |
| B. | Outer surface |
| C. | Composition |
| D. | Atomic structure and composition |
| Answer» E. | |
| 115. |
A colour is produced due to ___________ |
| A. | Reflection |
| B. | Refraction |
| C. | Absorption |
| D. | Reflection and absorption |
| Answer» E. | |