The value of log 0.01 (1000) is

Report

Report an issue

Name

Email

Message

Submit

Cancel

RRB Junior Clerk Exam (Allahabad) 2009 click here to view all questions

$$\text{The value of } log_{(0.01)} (1000)\text{ is}$$

A$$\frac{1}{3}$$

B$$-\frac{1}{3}$$

C$$\frac{3}{2}$$

D$$-\frac{3}{2}$$

Nithin K ? Apr 20 '2018 at 19:59

Correct Answer: D [\(-\frac{3}{2}\)]

Explanation:

\(log_{0.01}{1000} = \frac{\text{log 1000}}{\text{log 0.01}}\)

\(=\frac{\text{log }10^3}{\text{log }10^{-2}}\)

\(=\frac{3\text{ log 10}}{-2\text{ log 10}}\)

\(=-\frac{3}{2}\)

View Answer

Discuss

Which of the following is present In hard water?

Report

Report an issue

Name

Email

Message

Submit

Cancel

RRB Junior Clerk Exam (Allahabad) 2009 click here to view all questions

Which of the following is present In hard water?

ACalcium

B Aluminum

CSodium

DChIorine

Nithin K ? Apr 19 '2018 at 22:47

Correct Answer: A [Calcium]

Explanation:

The hard water consists of Calcium and Magnesiurn (lnsoluble) salts.

View Answer

Discuss

Which of the following is a non ferrous metal?

Report

Report an issue

Name

Email

Message

Submit

Cancel

RRB Junior Clerk Exam (Allahabad) 2009 click here to view all questions

Which of the following is a non ferrous metal?

ACobalt

BAluminium

CNickel

DIron

Nithin K ? Apr 19 '2018 at 22:41

Correct Answer: B [Aluminium]

Explanation:

Generally more costly than ferrous metals, non-ferrous metals are used because of desirable properties such as low weight (e.g. aluminium), higher conductivity (e.g. copper), non-magnetic property or resistance to corrosion (e.g. zinc). Some non-ferrous materials are also used in the iron and steel industries.

View Answer

Discuss

Find the odd man out: 1. 4, 9, 16. 20, 36, 49

Report

Report an issue

Name

Email

Message

Submit

Cancel

RRB Junior Clerk Exam (Allahabad) 2009 click here to view all questions

Find the odd man out:
1. 4, 9, 16. 20, 36, 49

A1

B9

C20

D49

Nithin K ? Apr 19 '2018 at 21:19

Correct Answer: C [20]

Explanation:

Remaining numbers are squares of 1,2,3,4,6,7

View Answer

Discuss

Which matter is used In storage batteries?

Report

Report an issue

Name

Email

Message

Submit

Cancel

RRB Junior Clerk Exam (Allahabad) 2009 click here to view all questions

Which matter is used In storage batteries?

ACopper

BLead

CAlluminium

DZinc

Nithin K ? Apr 19 '2018 at 19:10

Correct Answer: B [Lead] 

Explanation:

lead. …is in the manufacture of storage batteries. It is used in ammunition (shot and bullets) and as a constituent of solder, type metal, bearing alloys, fusible alloys, and pewter.

View Answer

Discuss

The chemical name of table salt

Report

Report an issue

Name

Email

Message

Submit

Cancel

RRB Junior Clerk Exam (Allahabad) 2009 click here to view all questions

The chemical name of table salt

Apotassium chloride

Bsodium chloride

Ccalcium chloride

D sodium hyposulphate

Nithin K ? Apr 18 '2018 at 7:16

Correct Answer: B [sodium chloride]

Explanation:

The Chemical name of table salt  Sodium Chloride (NaCl).

View Answer

Discuss

100 * 10 - 100+2000 / 100 =?

Report

Report an issue

Name

Email

Message

Submit

Cancel

RRB Junior Clerk Exam (Allahabad) 2009 click here to view all questions

$$100 \times 10 - 100+ \frac{2000}{100} =?$$

A29

B780

C920

D979

Nithin K ? Apr 18 '2018 at 7:9

Correct Answer: C [920]

Explanation:

\(100 \times 10 - 100+ \frac{2000}{100} =?\)

According to BODMAS Rule,

\(100 \times 10 - 100+ 20 =?\)

\(1000 - 100+ 20 =?\)

\(1000 - 120 =?\)

= 920

Note: 

BODMAS Rule is

Step 1: Parts of the expression enclosed in ‘Brackets’ must be solved first. Inside the brackets, once again BODMAS rules apply! Just like a Russian Doll!

Step  2: The mathematical operators ‘of’ and ‘order’ must be solved next. ‘Of’ means part of and is solved by substituting with a multiplication sign. ‘Order’ is the same as exponent. Powers are solved after brackets. Powers also include roots.

Step 3: Next, the parts of the equation that contain ‘Division’ and ‘Multiplication’ are calculated.

Step 4: Last but not least, the parts of the equation that contain ‘Addition’ and ‘Subtraction’ should be calculated.

 

View Answer

Discuss