Commercial production of petrol from coal (as practised in a factory at Sasol in South Africa) is done by the __________ of coal.

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Question: Commercial production of petrol from coal (as practised in a factory at Sasol in South Africa) is done by the __________ of coal.
[A].

hydrogenation

[B].

gasification

[C].

carbonisation

[D].

none of these

Answer: Option A

Explanation:

No answer description available for this question.

“Overfire burning” in a furnace is a phenomenon characterised by the

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Question: “Overfire burning” in a furnace is a phenomenon characterised by the
[A].

supply of excess fuel.

[B].

supply of excess air.

[C].

burning of carbon monoxide and other incombustibles in upper zone of furnace by supplying more air.

[D].

none of these.

Answer: Option C

Explanation:

No answer description available for this question.

Emission of dense white smoke out of the chimney of a thermal power plant is an indication of the use of

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Question: Emission of dense white smoke out of the chimney of a thermal power plant is an indication of the use of
[A].

less air for combustion.

[B].

correct amount of air for combustion.

[C].

too much air for combustion.

[D].

pulverised coal in boilers.

Answer: Option C

Explanation:

No answer description available for this question.

Architectural dimensioning standards allow for the placement of dimensions inside the floor plan. These inside dimensions locate interior ________.

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Question: Architectural dimensioning standards allow for the placement of dimensions inside the floor plan. These inside dimensions locate interior ________.
[A].

door openings and walls

[B].

centers of cabinets

[C].

windows

[D].

all of the above

Answer: Option A

Explanation:

No answer description available for this question.

A two branch parallel tuned circuit has a coil of resistance 100 Ω and inductance 0.005 H in one branch and 10 nF capacitor in the second branch. At resonance frequency, the dynamic resistance is

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Question: A two branch parallel tuned circuit has a coil of resistance 100 Ω and inductance 0.005 H in one branch and 10 nF capacitor in the second branch. At resonance frequency, the dynamic resistance is
[A].

1 Ω

[B].

10 Ω

[C].

100 Ω

[D].

more than 100 Ω

Answer: Option D

Explanation:

Dynamic resistance =

Determine the magnitudes ofthe forces P, R, and F required for equillibrium of point O.

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Question: Determine the magnitudes ofthe forces P, R, and F required for equillibrium of point O.
[A].

R = 238 N, F = 181.0 N, P = 395 N

[B].

R = 1340 N, F = 740 N, P = 538 N

[C].

R = 419 N, F = 181.0 N, P = 395 N

[D].

R = 409 N, F = 504 N, P = 1099 N

Answer: Option D

Explanation:

No answer description available for this question.