Exams Questions and Answers

Q:

What is fingerprint powder made of?

A) Rosin	B) Black ferric oxide
C) Lamp black	D) All of the above

Answer & Explanation Answer: D) All of the above

Explanation:

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Filed Under: General Science
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Bank Clerk , Bank PO

1 2506

Q:

If $a$ - $\frac{1}{a}$ =7,then $a^{2}$ + $\frac{1}{a^{2}}$ =?

A) 54	B) 51
C) 53	D) 52

Answer & Explanation Answer: B) 51

Explanation:

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Filed Under: Simplification
Exam Prep: AIEEE , Bank Exams , CAT

0 2506

Q:

Ranjith can complete a task in 25 days while Anji can finish it in 20 days. They work together on the task for 5 days and then Ranjith leaves. In how many days will Anji finish the remaining work?

A) 15 days	B) 10 days
C) 11 days	D) 9 days

Answer & Explanation Answer: C) 11 days

Explanation:

Lcm of 25 and 20 is 100. So total work = 100 units
Ranjith can do 4 units per day while anju can do 5 units per day
They together complete 5 days of work i.e 9 x 5 = 45 units
The remaining 55 units of work is done by anju in 55/5 days (or) 11 days

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Filed Under: Time and Work
Exam Prep: AIEEE , Bank Exams , CAT

2 2506

Q:

Which formula represents a polar molecule?

A) C - O	B) C - N
C) H - N	D) All of the above

Answer & Explanation Answer: D) All of the above

Explanation:

A chemical bond in which the electrons are not shared equally due to differences in the electronegativity of the atoms.

The polarity of a covalent bond is measured using its dipole moment.

 Large dipole moment = more polar

 Small dipole moment = more nonpolar.

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Filed Under: Chemistry
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

2 2506

Q:

There are two parallel streets each directed north to south. A person in the first street travelling from south to north wishes to take the second street which is on his right side. At some place, he makes a 150 deg turn to the right and he travels for 15 minutes at the speed of 20 km/hr. After that he takes a left turn of 60 deg and travels for 20 minutes at the speed of 30 km/hr in order to meet the second street. What is the distance between the two streets?

A) 7.5 km	B) 10.5 km
C) 12.5 km	D) 15 km

Answer & Explanation Answer: C) 12.5 km

Explanation:

Initially the person is travelling from south to north i.e. D to A

He takes 150 deg right turn and moves AB distance and then he takes 60 deg left turn travels BC

AB = 20km/hr * 15/60 hr = 5km

BC = 30 * 20/60 = 10 km

We know that distance between both the streets is DC = DB + BC

DB = AB cos 60o= 5. ½ =2.5 km

So the distance between streets = 12.5 km

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Filed Under: Height and Distance
Exam Prep: Bank Exams

5 2506

Q:

If "+" means "minus", "x" means "divided by", "÷" means "plus" and "-" means "multiplied by", then
300 x 10 – 5 + 36 ÷ 57 = ?

A) 150	B) 171
C) 230	D) 234

Answer & Explanation Answer: B) 171

Explanation:

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Filed Under: Coding and Decoding
Exam Prep: Bank Exams

0 2506

Q:

In the following question, select the odd letters from the given alternatives.

A) MN	B) NM
C) OL	D) ET

Answer & Explanation Answer: D) ET

Explanation:

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Filed Under: Odd Man Out
Exam Prep: Bank Exams

4 2506

Q:

In the following question, select the related letters from the given alternatives.
YONEX : DUUMG : : JASPO : ?

A) OGZXX	B) OXXZF
C) OZTYY	D) OZXXG

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