GENERAL SCIENCE(CHEMISTRY) QUESTIONS FOR RRB ALP & TECHNICIAN DAY-15

Dear Bankersdaily Aspirants,

Hope you are preparing well for your RRB ALP & TECHNICIAN recruitment 2018 which is going to be held in the month of April/May of this year 2018.The Indian Railways has finally released the official notification announcing the Assistant Loco Pilot (ALP) & Technicians Recruitment. In the year 2018, Railways Recruitment Board or RRB will be recruiting to fill 26,502 vacancies for ALP and Technicians. This is a golden chance to grab a well secured job in the Indian Railways.

So its time for you people to boost your preparation to get a secured job in RRB as ALP & TECHNICIAN. Here are some important questions in Physics which will help to boost your preparation.

RRB ALP & TECHNICIAN recruitment 2018 Day- 15

No.of Questions: 10

Timing: 10 minutes

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1) The process of converting metal oxide into metal is called ______

a) Calcination

b) Distillation

c) Liquidation

d) Refining

e) Reduction

2) Those metals which have impurities the melting point of which are higher than the metal can be purified by _____ method.

a) Concentration

b) Liquidation

c) Distillation

d) Reduction

e) None of these

3) _______ process is used to purify those metals which have low boiling points.

a)Distillation

b)Reduction

c) Calcination

d)Concentration

e) None of these

4) The undesirable materials present in ore are known as _____

a) Pig iron

b) Slag

c) Flux

d) Gangue

e) None of these

5) The substance added to ores to remove gangue is known as ______

a) Sinter

b) Pig iron

c) Slag

d) Flux

e) None of these

6) The process of removal of gangue from the ore is known as _______

a) Sintering

b) Smelting

c) Concentration

d) Calcination

e) None of these

7) The process of heating ore above its melting point in the excess air to obtain metal is known as _____

a) Calcination

b) Concentration

c) Smelting

d) Sintering

e) None of these

8) ______ is a process of crushing ore to reasonable size before the concentration of ore.

a) Thermite reaction

b) Sintering

c) Smelting

d) Calcination

e) None of these

9) The reduction of a metal oxide to form metal by using aluminium powder as a reducing agent is called ______

a) Pig Iron

b) Calcination

c) Thermite reaction

d) Concentration

e) None of these

10) The iron obtained from blast furnace is called ____

a) Hydrated iron

b) Rust iron

c) Pig iron

d) Cast iron

e) None of these

                                       Answer Key

1) e) Reduction

2)b) Liquidation

3) a)Distillation

4) d) Gangue

5) d) Flux

6) c) Concentration

7) c) Smelting

8) b) Sintering

9) c) Thermite reaction

10) c) Pig iron

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