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Free trb questions Online Test - MeritNotes
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No. of Questions :10
Remaining Time :
1. Which of the following groups of fuels can be classified as processed fuels used for cooking?
(a)
Kerosene, Charcoal, L.P.G.
(b)
Wood, Kerosene, Charcoal
(c)
L.P.G. , Wood, Coal
(d)
Charcoal, Kerosene, Coal
2. Which of the following substances has the lowest specific gravity?
(a)
Iron
(b)
Brass
(c)
Gold
(d)
Marble
3. White coal is
(a)
Hydro-electricity
(b)
Diamond
(c)
Uranium
(d)
Ice
4. Sun’s heat reaches earth by which of the following modes of heat transmission?
(a)
Heat exchange
(b)
Radiation
(c)
Conduction
(d)
Convection
5. Which is the strongest acid?
(a)
Carbonic acid (H
2
CO
3
)
(b)
Hydrochloric acid (HCL)
(c)
Sulphuric acid (H
2
SO
4
)
(d)
Nitric acid (HNO
3
)
6. Which of the following is a non conventional source of energy?
(a)
Biogas
(b)
Coal
(c)
Oil
(d)
None of these
7. Interactive service for transmission and reception of messages on printed medium through telephone lines is known as
(a)
Phonograph
(b)
Teleprint
(c)
Telefax
(d)
Teletext
8. Of the following, which one is the best insulator?
(a)
Wood
(b)
Paper
(c)
Cloth
(d)
Glass
9. Mineral waxes are rich in
(a)
Carbohydrates
(b)
Poly alcohols
(c)
Poly ethers
(d)
Hydrocarbons
10. Which of the following contains cobalt?
(a)
Chlorophyll
(b)
Haemoglobin
(c)
Vitamin K
(d)
Vitamin B
12
