Question 1

A polishing abrasive made artificially by mixing in certain proportions sand and carbon and heating the mixture is an electric furnace :

Accepted Answer

Carborundum

Answer

Ballast

Answer

Emery

Answer

Coke

Question 2

Which of the following is the ore of copper

Accepted Answer

All of the above

Answer

Cuprite

Answer

Copper pyrites

Answer

Copper glance

Question 3

Which of the following is the ore of magnesium

Accepted Answer

All of the above

Answer

Dolomite

Answer

Magnesite

Answer

Kieserite

Question 4

Which metal is used in electric cells , for galvanizing, in the preparation of alloys , paints etc

Accepted Answer

Zinc

Answer

Tin

Answer

Aluminium

Answer

Copper

Question 5

If a traverse is a closed one the sum of the internal included angles is

Accepted Answer

(2n-4) x 90 degrees

Answer

(n/2-4) x 90 degrees

Answer

(4n-2) x 90 degrees

Answer

(2n+4) x 90 degrees

Question 6

True bearing of the sun at noon is

Accepted Answer

zero

Answer

270 degrees

Answer

90 degrees

Answer

180 degree

Question 7

Delta (Δ) in cm. Duty (D) in hectare Cumec and Base period (B) in days are related as

Accepted Answer

D = 8.64 B/Δ

Answer

B = 864 D/Δ

Answer

Δ = 864 B/D

Answer

B = 864 Δ/D

Question 8

Time elapsed between Sowing to Harvesting

Accepted Answer

Crop period

Answer

Base period

Answer

Rabi period

Answer

Season period

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