gk (general knowledge) questions and answers MCQ

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gk (general knowledge) questions and answers MCQ for for all competitive exams UPSC IAS IPS Prelims, SSC CGL ,SSC CHSL general Awareness CTET, UGC NET

Gk Questions and answers

 

46.
One kilometre is equal to how many miles?

a
0.5
b
1.6
c
0.62
d
0.84

47.
Rainbow is due to

a
Absorption of sunlight in minute water droplets
b
Refraction and reflection of sunlight by water droplets
c
Diffusion of sunlight through water droplets
d
Ionisation of water deposits

48.
A watt meter can be connected to a high current circuit by using

a
Shunt
b
Current transformer
c
Eddy current transformer
d
Potential transformer

49.
Of the following taxonomic category which is the most inclusive (i.e. is the highest in hierarchy)?

a
Order
b
Subspecies
c
Genus
d
Class

50.
In which of the following pairs, the two substances forming the pair are chemically most dissimilar?

a
Chalk and marble
b
Charcoal and diamond
c
Sugar and paper
d
Butter and paraffin wax

51.
Amalgams are

a
Highly coloured alloys
b
Alloys which have great resistance to abrasion
c
Alloys which contain carbon
d
Alloys which contain mercury as one of the contents

52.
Primitive man first learnt

a
To grow grain
b
To make fire
c
To tame animals
d
To make a wheel

53.
Let a thin capillary tube be replaced with another tube of insufficient length then, we find water

a
Depressed
b
Will overflow
c
Change its meniscus
d
Will not rise

54.
The inexpensive and commonly used variety of glass is called soda glass. It is called so because

a
Is made using soda(sodium carbonate)
b
Was used initially for making bottles of soda(carbonated drink)
c
Was initially used for storing sodium carbonate
d
Is made using soda lime

55.
The most important ore of aluminium is

a
Bauxite
b
Calamine
c
Calcite
d
Galena

56.
A 10 cm long conductor is linked with a magnetic field of 1 weber/sq. m. When a current of 10 A passes through it, it will experience a force of

a
0.1 N
b
10 N
c
0.01 N
d
1 N

57.
The power factor at resonance in R-L-C parallel circuit is

a
0.5 leading
b
0.5 lagging
c
Zero
d
Unity

58.
Railway tracks are banked on curves

a
Necessary centripetal force may be obtained from the horizontal component of the weight of the train
b
The train may not fly off in the opposite direction
c
Necessary centrifugal force may be obtained from the horizontal component weight of the train
d
To avoid frictional force between the tracks and wheels

59.
Nautical mile is a unit of distance in

a
Space
b
Navigation
c
None of these
d
Aviation

60.
Marsh gas is

a
Nitrogen
b
Methane
c
Hydrogen
d
Ethane

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