Q1. What is the average temperature(in degree Celsius) required for hot forging of aluminium alloys?
(A) 1100 to 1300
(B) 350 to 525
(C) 2000 to 2600
(D) None of these

Q2. Which process squeezes metals into peaks and troughs with plastic deformation?
(A) Grooving
(B) Knurling
(C) Reaming
(D) None of these

Q3. Which of the following operations is/are performed on a lathe machine?
(A) Spot-facing
(B) Parting
(C) Reaming
(D) All of these

Q4. The process of chamfering the entrance of a drilled hole is known as
(A) counter-boring
(B) counter-sinking
(C) counter-fillet
(D) trepanning

Q5. On drilling machine, which process is known as reaming?
(A) Enlargement of existing hole
(B) Hole made by removal of metal along the hole circumference
(C) Smoothly finishing and accurately sizing a drilled hole
(D) All of these

Q6. The radiation pyrometers work on the principle of
(A) Newtons law
(B) Stefan Boltzmanns law
(C) Zeroth law
(D) None of these

Q7. According to Joules law, the internal energy of a perfect gas is the function of absolute
(A) density
(B) pressure
(C) temperature
(D) volume

Q8. According to Kelvin-Planck statement, it is impossible to construct a device operating on a cycle which transfers heat from
(A) low pressure heat reservoir to high pressure reservoir
(B) low temperature heat reservoir to high temperature reservoir
(C) high pressure heat reservoir to low pressure reservoir
(D) high temperature heat reservoir to low temperature reservoir

Q9. Thermal efficiency of S.I. engines is low, due to
(A) low compression ratio
(B) high compression ratio
(C) c medium compression ratio
(D) none

Q10. Pump transfers input mechanical energy of an engine, into
(A) pressure energy of a fluid
(B) kinetic energy of a fluid
(C) Both of these
(D) None of these

Q11. Which of the following protects penstock due to sudden variation of flow or velocity of water?
(A) Anchors
(B) Forebays
(C) Trash rack
(D) Surge tank

Q12. One ton of refrigeration is equal to
(A) 120 B Th U/hr
(B) 200 B Th U/hr
(C) 1200 B Th U/hr
(D) 12000 B Th U/hr

Q13. What is the function of a moderator?
(A) Increases the speed of neutrons
(B) Increases the speed of electrons
(C) Reduces the speed of neutrons
(D) Reduces the speed of electrons

Q14. In ideal machines
(A)  mechanical advantage is greater than velocity ratio
(B)  mechanical advantage is equal to velocity ratio
(C)  mechanical advantage is less than velocity ratio

Q15. A cable with a uniformly distributed load per horizontal meter run will take the following shape
(A) straight line
(B) parabola
(C) hyperbola
(D) elliptical

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