Workshop Technology - Study Mode

[#131] The maximum flame temperature occurs
Correct Answer

(B) At the inner cone

Explanation

Solution: The maximum flame temperature occurs At the inner cone

[#132] The temperature produced by oxy-hydrogen flame is about
Correct Answer

(C) 2400°C

Explanation

Solution: The temperature produced by oxy-hydrogen flame is about 2400°C This gaseous mixture is used for torches to process refractory materials and was the first gaseous mixture used for welding.

[#133] The instrument used to measure external and internal diameter of shafts, thickness of parts and depth of holes, is
Correct Answer

(D) Vernier caliper

Explanation

Solution: The instrument used to measure external and internal diameter of shafts, thickness of parts and depth of holes, is Vernier caliper

[#134] According to Indian standards, the total numbers of tolerance grades are
Correct Answer

(C) 18

Explanation

Solution: According to Indian standards, the total numbers of tolerance grades are 18

[#135] Metal patterns are used for
Correct Answer

(D) Large scale production of castings

Explanation

Solution: Patterns come in many materials, including wood, metal, plastics, and wax. The pattern material is chosen based on the casting volume and process used. Wood and metal patterns are usually used with sand casting, while wax is rarely used for anything but investment casting.