[A]. water and water
[B]. water and lithium bromide
[C]. ammonia and lithium bromide
[D]. ammonia and water
✅ The correct answer is option D.
Engineering MCQs
The triangle law of forces states that if two forces acting simultaneously on a particle, be represented in magnitude and direction by the two sides of a triangle taken in order, then their resultant may be represented in magnitude and direction by the third side of a triangle, taken in opposite order.
[A]. True
[B]. False
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✅ The correct answer is option A.
The type of organisation preferred for a steel industry, is
[A]. line organisation
[B]. functional organisation
[C]. line and staff organisation
[D]. line, staff and functional organisation
✅ The correct answer is option D.
A refrigeration system
[A]. removes heat from a low temperature body and delivers it to a high temperature body
[B]. removes heat from a high temperature body and delivers it to a low temperature body
[C]. rejects energy to a low temperature body
[D]. none of the above
✅ The correct answer is option A.
While designing the refrigeration system of an aircraft, the prime consideration is that the
[A]. system has high C.O.P.
[B]. power per TR is low
[C]. mass of refrigerant circulated in the system is low
[D]. mass of the refrigeration equipment is low
✅ The correct answer is option D.
In a hot chamber die casting machine
[A]. ferrous alloys with low melting temperature are casted
[B]. ferrous alloys with high melting temperature are casted
[C]. non-ferrous alloys with low melting temperature are casted
[D]. non-ferrous alloys with high melting temperature are casted
✅ The correct answer is option C.
In natural circulation steam boilers, the circulation of water is by convection currents which are set up during the heating of water.
[A]. Correct
[B]. Incorrect
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✅ The correct answer is option A.
In a simple bending of beams, the stress in the beam varies
[A]. linearly
[B]. parabolically
[C]. hyperbolically
[D]. elliptically
✅ The correct answer is option A.
The Whitworth quick return motion mechanism is formed in a slider crank chain when the
[A]. coupler link is fixed
[B]. longest link is a fixed link
[C]. slider is a fixed link
[D]. smallest link is a fixed link
✅ The correct answer is option A.
In an impulse turbine, the jet of water impinges on the bucket with a low velocity and after flowing over the vanes, leaves with a high velocity.
[A]. True
[B]. False
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✅ The correct answer is option B.