Correct Answer:- Option-B

Question58:-A boiler shell 200 cm diameter and plate thickness 1.5 cm is subjected to internal pressure of *"1.5 MN/m*2" .
Then the hoop stress will be

‎MN/m*2"*‏ "مھ
‎B:-'"30 MN/m*2"‏
‎MN/m*2"‏ 100" -:
‎MN/m*2"‏ 200" -:0
‎Correct Answer:- Option-C‏
‎Question59:-The cutting tool in a milling machine is mounted on‏
‎A:-Tool holder‏
‎B:-Arbor‏
‎:-Column‏
‎D:-Spindle‏
‎Correct Answer:- Option-B‏
‎Question60:-Fusible plug is fitted in a boiler to‏
‎A:-extinguish fire in case of low water level‏
‎B:-prevent leakage of steam from boiler‏
‎C:-allow passage of only super heated steam from the boiler‏
‎D:-keep the boiler pressure within the prescribed limits‏
‎Correct Answer:- Option-A‏
‎Question61:-Which of the following is an amorphous material?‏
‎A:-Lead‏
‎-Rubber‏
‎C:-Mica‏
‎D:-Glass‏
‎Correct Answer:- Option-D‏
‎Question62:-Which of the following is used for bearing liner?‏
‎A:-Bronze‏
‎B:-Babbit metal‏
‎C:-Gun metal‏
‎D:-Brass‏
‎Correct Answer:- Option-B‏
‎Question63:-The weight of oxygen in atmospheric air is‏

‎

‎

‎

‎

‎Correct Answer:- Option-C
Question64:-A Pelton wheel turbine is ideally suited for
A:-High head and low discharge
B:-High head and high discharge
C:-Low head and low discharge
D:-Medium head and medium discharge
Correct Answer:- Option-A
Question65:-Which of the following is not the part of a shaper?
A:-Ram
“Table
C:-Cross slide
D:-Clapper box
Correct Answer:- Option-C
Question66:-Which of the following materials require the largest size of riser for the same size of casting?
A:-Cast iron
B:-Aluminium
C:-Steel
D:-Copper
Correct Answer:- Option-B
Question67:-On a psychrometric chart, the relative humidity lines are represented by
A:-uniformly spaced inclined lines
B:-uniformly spaced horizontal lines

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