74.

75.

76.

77.

78.

79.

80,

81,

82,

83.

What is the duty cycle of a welding machine designed to operate continuously for 7 out of
every 10 minutes ?

(3) 10 percent (B) 70 percent
(C) 30 percent (D) None of the above

Name the instrument/tool used for transferring and setting of distances ?
(ക) “L” square (B) Steel rule (C) Wing compass (D) Straight edge

Ammonium Chloride is used as a flux for soldering ?
(ಸ) 5061 (8) Aluminum (0 Galvanized iron (D) Stainless steel

Name of the instrument used to check the perpendicularity of the branch pipe with the main
pipe of a pipe T joint ?
(A} Protractor (8) Try square (C) Spirit level (D) Straight edge

Which one of the following metals will not permit X-rays to pass-through ?
(A) Stainlesssteel (8) Aluminum (©) Lead (D) Tin

The distance between the root and toe of a fillet weld is called 1
(வ) Root gap (8) Leg length (C) Reinforcement (D) Throat thickness

Thermit mixture used in thermit welding can be ignited with an initial temperature of

(ಸಿ) 150010 (8). 1000 0 (©) 6 (D) 500°C

The Lakshadweep (Laccadive) is situated in :
(A) The Bay of Bengal (B) Arabian Sea
(C) Indian Ocean (D) Persian (र्णा

World Forest Day is celebrated on :
(A) March 21 (8) July 10 (C) June 05 (D) October 10

Name the most densely populated state in India according to the census 2011 :
(A) Uttar Pradesh (8) West Bengal (C) Harvana (D) Bihar

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