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Q:

When ice cubes are made, the entropy of water

A) does not change B) decreases
C) increases D) may either increase or decrease depending on the process used
 
Answer & Explanation Answer: B) decreases

Explanation:
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Filed Under: Chemistry
Exam Prep: Bank Exams

0 2097
Q:

A car moving in the morning fog passes a man walking at 4km/h. in the same direction. The man can see the car for 3 minutes and visibility is upto a distance of 130m. The speed of the car is :

A) 10 kmph B) 7.5 kmph
C) 8.9 kmph D) 6.6 kmph
 
Answer & Explanation Answer: D) 6.6 kmph

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Filed Under: Time and Distance
Exam Prep: Bank Exams

0 2097
Q:

x and y are two numbers such that their mean proportion is 9 and third proportion is 243. What is the value of x and y?

A) 3 and 9 B) 3 and 27
C) 6 and 27 D) 6 and 81
 
Answer & Explanation Answer: B) 3 and 27

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

1 2097
Q:

If tan x = 1, 0 < x < 90, then what is the value of 2 sin x cos x?

A) 1/2 B) 1
C) √3/2 D) √3
 
Answer & Explanation Answer: B) 1

Explanation:

tan x = 1

then x = 45

2sin x. cos x = 2× 1/√2 x 1/√2 = 1

an x = 1
then
x = 45
o
2sin x. cos x =
2
×
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Filed Under: Simplification
Exam Prep: Bank Exams

1 2097
Q:

A train is moving at the speed of 72km/hr. How many seconds will it take to cover a distance of 1400 m ?

A) 70 B) 80
C) 72 D) 84
 
Answer & Explanation Answer: A) 70

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Filed Under: Time and Distance
Exam Prep: Bank Exams

0 2097
Q:

What is the resistance (in ohm) of an electrical component if a current of 0.5 A passes through it on application of 20 V of potential difference across it?

A) 10 B) 20
C) 80 D) 40
 
Answer & Explanation Answer: D) 40

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Filed Under: Physics
Exam Prep: Bank Exams

1 2097
Q:

Which was the first garden­-tomb in the Indian subcontinent?

A) Tomb of Jahangir B) Humayun's Tomb
C) Taj Mahal D) Tomb of Muhammad Iqbal
 
Answer & Explanation Answer: B) Humayun's Tomb

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Filed Under: General Awareness
Exam Prep: Bank Exams

1 2097
Q:

20% discount is offered on an item. By applying a promo code the customer wins 10% cash back. What is the effective discount?

A) 30.8 percent B) 30 percent
C) 12 percent D) 28 percent
 
Answer & Explanation Answer: D) 28 percent

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Filed Under: Percentage
Exam Prep: Bank Exams

1 2097