RRB JE Mechanical Question Paper 2014 (Set-3) with Answer Key

RRB JE Mechanical Question Paper 2014 (Set-3) with Answer Key

71) A tree 6 m tall casts a 4 m long shadow. At the same time, a flag pole casts a 50 m long shadow. How long is the flag pole?

Answer is:

75 m

72) Nowadays, to reduce air pollution, the buses of Delhi are running on

Answer is:

Compressed Natural Gas (CNG)

73) Which acid causes cramps in our muscles?

Answer is:

Lactic Acid

Explanation:

A lactic acid buildup around muscles can trigger cramps; however, they happen during anaerobic respiration when a person is exercising or engaging in an activity where the heartbeat rises.

74) Which is the most widely used metal for castings?

Answer is:

Cast Iron

75) Which of the following objects gives a circular section, when it is cut completely by a section plan (irrespective of the angle of the section plane)?

Answer is:

71) A tree 6 m tall casts a 4 m long shadow. At the same time, a flag pole casts a 50 m long shadow. How long is the flag pole?

75 m

72) Nowadays, to reduce air pollution, the buses of Delhi are running on

Compressed Natural Gas (CNG)

73) Which acid causes cramps in our muscles?

Lactic Acid

74) Which is the most widely used metal for castings?

Cast Iron

75) Which of the following objects gives a circular section, when it is cut completely by a section plan (irrespective of the angle of the section plane)?

Sphere