Exam Type Questions Flashcards
(b)
Matter itself cannot be destroyed, but it can be changed from one state into another state by chemical or physical means.
(b)
(c)
(c)
(b)
(b)
(c)
Which of the following statements is incorrect
(a) Temperature is not a measure of molecular activity
(b) As heat is applied molecules vibrate
(c) Molecules of any sbstance are not stationary
(a)
(c)
(a)
salt = NACl
sulphuric acid = H2SO4
(c)
(c)
(a)
(a)
Which of the following would have a definite volume and shape:-
(a) Solid
(b) Liquid
(c) Gas
(a) Solid
(a)
(a)
Aluminium alloy is a mixture
Aluminium alloy, for example, is a mixture, but it has some properties all of its own. Its various components are said to be ‘physically’ rather than ‘chemically’ combined.
(b)
(a)
(b)
(b)
(c)
(b)
(c)
(c)
(b)
(b)
(c)
(b)
(b)
(a)
(c)
(a)
(b)
It makes no difference as to the shape or size of the unconfined vessel that contains the liquid; it is
(a) The diameter of the vessel that is the critical factor
(b) The viscosity of the liquid that is the critical factor
(c) The height of the column that is the critical factor
(c) The height of the column that is the critical factor
(a)
(c)
(a)
(a)
(b)
(a)
(a)
(b)
(a)
(a)
(b)
(c)
(b)
(b)
liquid - Temperature increases - viscosity decreases
gas - temperature increases - viscosity increases
When the flow rate is constant, the velocity of a flowing fluid
(A) varies directly with the cross sectional area squared
(b) varies directly with the cross sectional area
(c) varies inversely with the cross sectional area
(c)
10 gallons go through two pipes:
small pipe and large pipe
To be at the same rate, fast through small pipe and slow through big pipe
inverse relationship
(c)
12 c
13 b
(a)
(b)
(b)
(a)
(c)
Subsonic velocity < Speed of sound < Supersonic velocity
(a)
(c)
(b)
(a)
(b)
Another temperature scale, which is not commonly used, is the Rankine (R) scale
(b)
(c)
F = 9/5 C + 32
K = C + 273
(a)
F = 9/5C + 32
K = C + 273
(a)
Mechanical energy = friction, impact of bodies, compression
Chemical energy = explosive effects of gunpowder, burning of oil and wood, combining of oxygen and grease
All aircraft energy change chemical energy to mechanical and heat energy
(b)
(a)
(a)
(a)
F = 9/5 C + 32
K = C + 273
(b)
F = 9/5 C + 32
K = C +273
(a)
F = 9/5 C + 32
K = C +273
(b)
F = 9/5 C+32
K = C +273
(b)
(a)
Nuclear Energy
(c)
(a)
(c)
(a)
(b)
(a)
(a)
(b)
(c)
(a)
(a)
(b)
(a)
(a)
(c)
(b)
(a)
(b)
(b)
(a)
(c)
(a)
(b)
(a)
(c)
(c)
(b)
(b)
(a)
(c)
(b)
(a)
(a)
(c)
11 b
12 a
(b)
(a)
(a)
(c)
(b)
(c)
(b)
(a)
(c)
(c)
(b)
(c)
(c)
(a)
(b)
(b)
(c)
(a)
(b)
(a)
(a)
(a)
(b)
(c)
(a)
(c)
(a)
(a)
