1. Teflon is used for bearings because of

(a) Easily available

(b) Better heat reducer

(c) Low co-efficient of friction

(d) Smaller space constraint

Answer: (c) Low co-efficient of friction

2. A closed cycle gas turbine works on

(a) Joule cycle

(b) Rankine cycle

(c) Carnot cycle

(d) Atkinson carnot cycle

Answer: (a) Joule cycle

3. Mohr’s circle can be used to determine following stress on inclined surface

(a) Heat Stresses

(b) Normal stresses

(c) Maximum shear stresses

(d) Principal stresses

Answer: (d) Principal stresses

4. In a cantilever beam, maximum deflection occurs at where

a. Bending moment is maximum

b. Bending moment is zero

c. Bending is low

d. Slope is zero

Answer: b. Bending moment is zero

5. A solid cylinder of diameter 100 mm and height 50 mm is forged between two frictionless flat dies

to a height of 25 mm. The percentage change in diameter is

(A) 41.4

(B) 2.07

(C) 20.7

(D) 00

Answer:

6. The rate at which heat is extracted, in kJ/s from the refrigerated space is

A) 34.4

B) 42.9

C) 28.3

D) 14.6

Answer:

(a) Easily available

(b) Better heat reducer

(c) Low co-efficient of friction

(d) Smaller space constraint

Answer: (c) Low co-efficient of friction

2. A closed cycle gas turbine works on

(a) Joule cycle

(b) Rankine cycle

(c) Carnot cycle

(d) Atkinson carnot cycle

Answer: (a) Joule cycle

3. Mohr’s circle can be used to determine following stress on inclined surface

(a) Heat Stresses

(b) Normal stresses

(c) Maximum shear stresses

(d) Principal stresses

Answer: (d) Principal stresses

4. In a cantilever beam, maximum deflection occurs at where

a. Bending moment is maximum

b. Bending moment is zero

c. Bending is low

d. Slope is zero

Answer: b. Bending moment is zero

5. A solid cylinder of diameter 100 mm and height 50 mm is forged between two frictionless flat dies

to a height of 25 mm. The percentage change in diameter is

(A) 41.4

(B) 2.07

(C) 20.7

(D) 00

Answer:

6. The rate at which heat is extracted, in kJ/s from the refrigerated space is

A) 34.4

B) 42.9

C) 28.3

D) 14.6

Answer:

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