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Total Questions : 1058 | Page 71 of 106 pages
Question 701.

The efficiency of a Carnot engine depends on


  1.    working substance
  2.    design of engine
  3.    size of engine
  4.    type of fuel fired
  5.    temperatures of source and sink.
 Discuss Question
Answer: Option E. -> temperatures of source and sink.



Question 702.

Brayton cycle consists of following four processes


  1.    two isothermals and two isentropics
  2.    two isentropics and two constant volumes
  3.    two isentropics, one constant volume and one constant pressure
  4.    two isentropics and two constant pressures
  5.    none of the above.
 Discuss Question
Answer: Option D. -> two isentropics and two constant pressures



Question 703.

  Kinetic theory of gases assumes that the collisions between the molecules are


  1.    perfectly elastic
  2.    perfectly inelastic
  3.    partly elastic
  4.    partly inelastic
  5.    partly elastic and partly inelastic.
 Discuss Question
Answer: Option A. -> perfectly elastic


Question 704.


While using three moments equation, a fixed end of a continuous beam is replaced by an additional span of


  1.    zero length
  2.    infinite length
  3.    zero moment of inertia
  4.    none of the above
 Discuss Question
Answer: Option A. -> zero length


Question 705.
For which of the following substances, the internal energy and enthalpy are the functions of temperature only
  1.    any gas
  2.    saturated steam
  3.    Water
  4.    perfect gas
  5.    superheated steam.
 Discuss Question
Answer: Option D. -> perfect gas



Question 706.


When a load crosses a through
type Pratt truss in the direction left to right, the nature of force in
any diagonal member in the left half of the span would 


  1.    change from compression to tension
  2.    change from tension to compression
  3.    always be compression
  4.    always be tension
 Discuss Question
Answer: Option A. -> change from compression to tension


Question 707.


The number of independent equations to be satisfied for static equilibrium of a plane structure is


  1.    1
  2.    2
  3.    3
  4.    6
 Discuss Question
Answer: Option C. -> 3



Question 708.

The value of n = 1 in the poly tropic process indicates it to be


  1.    reversible process
  2.    isothermal process
  3.    adiabatic process
  4.    irreversible process
  5.    free expansion process.
 Discuss Question
Answer: Option B. -> isothermal process



Question 709.

A diathermy wall is one which


  1.    prevents thermal interaction
  2.    permits thermal interaction
  3.    encourages thermal interaction
  4.    discourages thermal interaction
  5.    does not exist.
 Discuss Question
Answer: Option B. -> permits thermal interaction


Question 710.

Number of unknown internal forces in each member of a rigid jointed plane frame is


  1.    1
  2.    2
  3.    3
  4.    6
 Discuss Question
Answer: Option C. -> 3



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