Workshop Technology - Study Mode

[#61] A progressive limit gauge has
Correct Answer

(A) 'Go' and 'Not go' member on the same side of the gauge

Explanation

Solution: A progressive limit gauge that serves to determine whether the measured part is within prescribed limits of tolerance. A progressive limit gauge has 'Go' and 'Not go' member on the same side of the gauge

[#62] The temperature at which the new grains are formed in the metal is called
Correct Answer

(D) Recrystallisation temperature

Explanation

Solution: Recrystallization is the process in which deformed grains of the crystal structure are replaced by a new set of stress-free grains that nucleate and grow until all the original grains have been consumed. The process is accomplished by heating the material to temperatures above that of crystallization.

[#63] The purpose of a gate is to
Correct Answer

(A) Delivers molten metal into the mould cavity

Explanation

Solution: The purpose of a gate is to delivers molten metal into the mould cavity. A proper method of gating system is that it leads the pure molten metal to flow through a ladle to the casting cavity, which ensures proper and smooth filling of the cavity. This depends on the layout of the gating channels too, such as the direction and the position of the runner, sprue and ingates.

[#64] In order to check the clearance between two mating surfaces, a ________ gauge should be used.
Correct Answer

(C) Feeler

Explanation

Solution: In order to check the clearance between two mating surfaces, a Feeler gauge should be used.

[#65] In forehand welding, the angle between the welding rod and the work is kept as
Correct Answer

(A) 30° - 40°

Explanation

Solution: Forehand welding is often called PUDDLE or RIPPLE WELDING. In this method of welding, the rod is kept ahead of the flame in the direction in which the weld is being made. You point the flame in the direction of travel and hold the tip at an angle of about 45° to the working surfaces.