Q:

The enzyme that is necessary to bring about clotting of blood is

A) peptidase	B) amylase
C) lipase	D) thrombokinase

Answer & Explanation Answer: D) thrombokinase

Explanation:

The clotting of blood is a chain reaction initiated by the enzyme thrombokinase produced by the platelets. This causes prothrombin to be converted into thrombin in the presence of $C a^{+ +}$ ion.

Thrombin combines with fibrinogen to produce fibrin threads which entangles the corpuscles to form the clot.

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Filed Under: Biology
Exam Prep: AIEEE , GATE

8 4865

Q:

Which best describes how air moves during convection?

A) cool air falls down	B) warm air falls down
C) cool air is replaced by warm air	D) air always falls down

Answer & Explanation Answer: A) cool air falls down

Explanation:

During convection, cool and dense air falls through the warmer and less dense air. The warm air having less mass is being displaced by the cooler which is much heavy. Convection always involves the air rising through the atmosphere.

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

3 4864

Q:

Train A, travelling at 84 kmph, overtook train B, traveling in the same direction, in 10 seconds. If train B had been traveling at twice its speed, then train A would have taken 22.5 seconds to overtake it. Find the length of train B, given that it is half the length of train A.

A) 180 m	B) 100 m
C) 200 m	D) 150 m

Answer & Explanation Answer:

Explanation:

Let speed of train B be x m/s And length of train B be y m
Then length of train A is 2y m
Speed of train A = 84 × 5/18 = 210/9 m/s = 70/3 m/s
A.T.Q, (2y+y)/10 = 70/3 − x .............(i)
and (2y+y)/ 22.5 = 70/3 − 2x ................(ii)
solving (i) and (ii), y = 50 m

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Filed Under: Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams , GATE

0 4863

Q:

Karnataka Bank Limited has recently launched Missed Call Banking Facility. Which of the following Statements are true regarding this?

(1) After giving missed call, the customer gets his account balance/mini statement through SMS on his mobile

(2) This Facility is free of cost

(3) Bank customers can give missed call from their registered mobile number to the designated numbers of the Bank and Know balance in their account or get mini statement

(4) These services are available only from registered mobile number of a customer to ensure confidentiality of the account details.

A) 1,3 and 4	B) 1,2 and 3
C) 1,2 and 4	D) 1,2,3 and 4

Answer & Explanation Answer: D) 1,2,3 and 4

Explanation:

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Filed Under: General Awareness

5 4859

Q:

In which year was "Jana Gana Mana" adopted as the National Anthem ?

A) 1947	B) 1949
C) 1951	D) 1950

Answer & Explanation Answer: D) 1950

Explanation:

1950

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Filed Under: Indian Politics
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Bank Clerk , Bank PO

10 4858

Q:

Which action is considered a primary function of State government?

A) supervising elected federal government officials	B) regulating political parties and the media
C) organizing a local military to provide security	D) enforcing laws regarding the public safety

Answer & Explanation Answer: D) enforcing laws regarding the public safety

Explanation:

The primary function of State government is enforcing laws regarding the public safety.

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Filed Under: Indian Politics
Exam Prep: Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

4 4858

Q:

Which scientist discovered the radioactive element radium?

A) Isaac Newton	B) Marie Curie
C) Benjamin Franklin	D) None of these

Answer & Explanation Answer: B) Marie Curie

Explanation:

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Filed Under: Inventions

2 4858

Q:

Which one of the following laws directly expalins the law of coservation of mass

A) Hund's rule	B) Dalton's law
C) Avogadro's law	D) Berzelius hypothesis

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