Engineering IQ Test

Question 1

Which of the following impurity in cast iron makes it hard and brittle ?

Accepted Answer

Sulphur

Answer

Silicon

Answer

Manganese

Answer

Phosphorus

Question 2

Vanadium when added to steel ?

Accepted Answer

increases tensile strength

Answer

decreases tensile strength

Answer

raises critical temperature

Answer

lowers critical temperature

Question 3

With the increase of battery temperature, the specific gravity of electrolyte ?

Accepted Answer

none of these

Answer

increases

Answer

decreases

Answer

remains the same

Question 4

Two advantages of using helical gears rather than spur gears in a transmission system are ?

Accepted Answer

noise level and strength

Answer

strength and cost

Answer

strength and less end thrust

Answer

noise level and economy

Question 5

A large clearance volume in a reciprocating compressor results in ?

Accepted Answer

reduced volume flow rate

Answer

increased volume flow rate

Answer

lower suction pressure

Answer

lower delivery pressure

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